Upcoming Scientific Fieldwork: 2017 and Beyond

March 6, 2017
Click on the image to see a map detailing Earth Institute fieldwork.



On every continent and every ocean, Lamont-Doherty Earth Observatory scientists are studying climate, geology, natural hazards, ecology and more. Below, a list of projects in rough chronological order. When logistically feasible, journalists are encouraged to cover expeditions. Work in the U.S. Northeast is listed separately toward bottom. More information: Senior science editor Kevin Krajick kkrajick@ei.columbia.edu,  212-854-9729.



TESTING SOUTHERN WINDS  Bog coring, New Zealand  LATE MARCH 2017
Warming climate has caused dramatic rainfall decreases on New Zealand’s South Island; storm tracks have been pushed far southward into the Southern Ocean, decreasing rain as much as 40 percent in the last 30 years. This is of concern not only to New Zealanders, but lands in the same latitude as far east as Chile. In order to understand how far this trend may extend, paleoclimate researcher Jonathan Nichols and colleagues will take cores of peat from an ancient bog at Letham Burn, an uninhabited area in the southwest corner of the island. Here, the remains of plants have been building for many thousands of years, leaving behind chemical isotopes that the researchers believe will indicate levels of rainfall during past, comparable warm periods. Smithsonian article on Nichols’ bog work

DEEP-EARTH DESERT  Drilling, geologic fieldwork, Oman  JAN-APRIL 2017, JAN-APRIL 2018
In the desert nation of Oman, rocks from earth’s mantle, usually inaccessible to humans, have been thrust to the surface in the mountainous Samail Ophiolite. The rocks have many unusual qualities, including the ability to naturally take up vast amounts of atmospheric carbon and convert it to solid carbonate. In the first project of its kind, an international team is taking deep cores and performing experiments in the formation. The project should yield insights into physical and biological processes in the deep earth; it could also show the way to harness natural underground processes that could suck vast amounts of excess globe-warming carbon from the air. Geochemists Peter Kelemen and Juerg Matter are leading about 40 other researchers from some half-dozen nations. Four holes of some 1,200 feet are now being drilled in the Wadi Tayin massif, where rocks have been converted almost entirely into carbonates. Next winter and spring, the team will penetrate zones where carbonation is still ongoing.  Video, photo essay, story on the project / Oman Drilling Project webpages

ICE-AGE SCOTLAND   Sampling of glacial debris  MARCH 2017
Some 12,000 years ago, much of the northern hemisphere, including Scotland, went back into a mini-ice age after several millennia of warming, and glaciers re-advanced.  The ice then remelted, leaving debris that we can see today. Glacial geologist Aaron Putnam and his colleague Gordon Bromley of the University of Maine are investigating the timing and causes of this event by sampling boulders once covered by ice, and organic matter preserved in ancient bogs that directly overlie glacial till. Their next research trip is tentatively scheduled for March.

VIKING TIMES  Lake coring, archaeological work,  Lofoten Islands, northern Norway  MAY 10-20, 2017
Paleoclimate scientists William D’Andrea and Nicholas Balascio will look into natural factors that may have influenced the growth of northern agriculture and rise of violent Viking chieftains during the Iron Age, ca. 500 BC to 1100 AD. The arctic Lofoten Islands were marginal for farming, so inhabitants were probably susceptible to small temperature swings, as well changes in sea level (2 to 3 meters higher in the Iron Age than today). Here, powerful Viking rulers and their predecessors left behind hundreds of dwellings, boathouses and other structures. How did they influence the land, and vice versa, as Viking culture took hold? Why did Viking chiefdoms collapse? D’Andrea and Balascio will take cores from the bottoms of deep lakes surrounding one major chieftain’s domain, and analyze them for changes in vegetation, livestock and use of fire that might help with such questions. The team will also mine extensive untapped Norwegian archaeological archives from digs dating to the 1980s, and synthesize the information with the climate data.

DEADLY DRINKING WELLS   Geology/agriculture research, India MARCH 20-28; Bangladesh MAY 1-15; Vietnam APRIL or SEPT 2017
Naturally occurring arsenic is a major problem in wells across southeast Asia, and despite mitigation efforts since the 1990s, many people are still exposed. Geochemist Alexander van Geen and colleagues have studied the causes and possible mitigation measures for years. In March, they will conduct drilling in India’s northern Punjab province to assess not only arsenic, but apparent naturally occurring high levels of fluoride. In May, they will visit farmers in Bangladesh to assess the effects of arsenic-laced water on rice yields, and field experiments to replace arsenic-laden soil. In April or September, van Geen and geochemist Ben Bostick will conduct drilling near Hanoi, to study how massive groundwater pumping is pulling arsenic plumes ever closer to the city water supply.   Videos and story on Asian geological and health studies  / Arsenic pollution near Hanoi / U.S. wells tainted by arsenic

CLIMATE AND THE FATE OF NORTHERN WILDLIFE  Tagging migratory birds, northern Alberta   MID-APRIL 2017, continuing 2018
North America’s boreal forests are warming fast, with major effects on trees, but little is known about effects on wildlife. A consortium of U.S. and Canadian researchers has started a 10-year campaign to put satellite trackers on animals including eagles, caribou, wolves and bears, and observe their behavior in relation to new trends in fires, insect populations and water availability. Ecologist Natalie Boelman is studying the common American robin, which appears to range as far as northern Alaska. In April, a grad student will head to Slave Lake in northern Alberta to tag three dozen robins. Courtesy of a new app, the researchers, and elementary-school students, can watch in near real time where they go. Expedition Blog / Overall project website / Animals on the Move / Boelman’s tundra ecology work in Alaska  

WATERY GREENLAND  Snow drilling, southwest Greenland  APRIL 18-MAY 20, 2017, continuing 2018-19
Recent surface melting of Greenland’s ice sheet has accelerated so fast, liquid runoff—not the calving of icebergs—has become the primary source of sea-level rise coming from Greenland. Previous research suggested that water normally percolates through subsurface snow and stays there as liquid over multiple seasons. But newer findings suggest that water may now be refreezing near the surface, forming a massive impermeable cap that will hasten runoff to the sea in coming warm seasons. To study this critical zone, a team including glaciologists Jonathan Kingslake and Marco Tedesco will participate in a 150-kilometer trek by snow machine to drill four 75-foot-deep holes into the snow and firn (compacted snow). They will perform detailed analyses on the cores, and leave instruments in the holes to monitor conditions, to be retrieved in 2019. In concert with Rutgers University, University of Alaska Fairbanks and colleagues from France, Germany and the UK. Recent study on subsurface Greenland meltwater  / The Great Greenland Meltdown

MIXING OIL AND WATER  Study of a natural hydrocarbon seep, Gulf of Mexico MID-MAY, LATE JUNE, LATE SEPT 2017
The seafloor of the oil-rich Gulf of Mexico contains many natural features where hydrocarbons seep naturally into the water from the seabed. In the wake of the catastrophic 2010 Deepwater Horizon oil spill, researchers have been intensively studying seeps to better understand how hydrocarbons move and interact with water. This year, a team including oceanographer Andreas Thurnherr will conduct three short cruises to place and recover acoustic instruments that will measure the dispersion of hydrocarbons from one seep in the northern Gulf. Each cruise will last two to three days.  Related research on oil seeps

TUNDRA ON FIRE  Lake coring, vegetation studies, northern Alaska, APRIL and AUG 2017; continuing 2018
On the northern tundra, once-rare wildfires sparked by lightning appear to be multiplying in response to hotter, drier summers. A team including paleoclimatologist Benjamin Gaglioti is investigating the frequency of such fires and their effects on vegetation and underlying permafrost. In April they will travel by snow machine to remote camps on Alaska’s North Slope to core lake sediments thought to preserve signs of past and recent fires that can be compared. Sites include the Lake of the Pleistocene and Perch Lake, in the foothills of the Brooks Range. In August, they will travel to study widespread sites of old burns, and how fires may have affected the underlying ground and ecology. Fieldwork in 2018 will include a 500-kilometer overland journey to study the effects of more recent fires.

A GHOST FOREST REVEALED  Tree ring collection, La Perouse Glacier, southeastern Alaska  MAY 2017
In June 2016, researchers including paleoclimatologist Benjamin Gaglioti and a colleague from the University of Alaska discovered several long-buried forests that had been newly revealed along the retreating margins of the La Perouse Glacier in southeast Alaska. Many of the trees, estimated to have been covered up 450 to 1,650 years ago, are still standing upright. The scientists will return in May to sample rings from them. These will provide information about how both glaciers and trees have responded to naturally shifting climates of the past, and inform projections into the future. The project is urgent, as the newly exposed trees are already starting to decay, and outwash of sediment from the glacier could rebury them at any time. The team will land by bush plane and camp on a beach in a remote area situated within Glacier Bay National Park.

THE THIRD POLE  Field geology, tree-ring sampling Bhutan SPRING or FALL 2017
Many Bhutanese glaciers are receding, endangering vital water supplies and hydropower facilities for nations downstream; and big meltwater lakes are building behind leaky natural dams that could burst. An interdisciplinary team is working to understand past glacier dynamics, and help predict future behavior. Pending funding in 2017, a team including glacial geologist Joerg Schaefer and grad student Josh Maurer plan to collect rock samples and study landforms in the little-visited eastern Jomolhari region, along the border with Tibet. This will be collated with other data including tree rings taken by Lamont dendrochronologist Edward Cook and colleagues at lower elevations. Cook intends to return to collect more tree rings in October 2017. Anthropologist Benjamin Orlove is studying the human dimensions of glacier retreat, and may return to Bhutan in 2018. New York Times blog from 2012 expedition / Read an article about the project

DARKENING ICE Sampling snow, meltwater, southern Greenland  MID JULY 2017
Polar scientist Marco Tedesco will join colleagues studying soot and algae building up on the Greenland ice sheet surface and apparently hastening its melting. Tedesco will sample snow and water to refine understanding of how the invaders are darkening the surface, decreasing its ability to reflect sunlight, and thus increasing absorption of solar radiation. The so-called Black and Bloom team includes glaciologists, biochemists and microbiologists. As an offshoot, Tedesco hopes to collect material to develop a virtual reality package that will bring the sights, sounds, and even the smells of the summer Greenland ice to a wide audience. Black and Bloom website / Greenland’s Ice Is Getting Darker

NORTHERN FORESTS AND CLIMATE Tree ring collection, northern Alaska  JULY/AUG 2017
Researchers Laia Andreu Hayles and Benjamin Gaglioti will fly by bush plane to remote areas in northern Alaska to revisit and sample slow-growing trees first studied by Lamont scientists some 30 years ago. The study is aimed at discovering how trees have fared under warming climate. In some places, forests are thought to be greening and growing faster, while in others, heat-induced stress may cause them to brown and die; local and regional factors are thought to be at play. The work will take place along the Noatak River, near the western coast, and in the jagged granite Arrigetch Peaks region of the Brooks Range.  Principal investigator: Rosanne D’Arrigo.

EUROPE’S MELTDOWN  Studies of glaciers, Swiss Alps  SPRING/SUMMER 2017
The Rhone River supplies water for France’s hydro dams and coolant for nuclear plants—but Switzerland’s Rhone glacier, the main source of summer flow, is disappearing. Already, lower water and higher water temperatures in warm months have forced nuclear plants to shut at times. By sampling bedrock that contains chemical clues, glacial geologist Joerg Schaefer and grad student Joshua Maurer are evaluating the ice’s past responses to changes in temperature and precipitation. Dependent on funding, they plan to visit the glacier this summer. In a related project, this spring they will sample bedrock underneath the ice at Jungfraujoch, an 11,400-foot saddle near the top of the Swiss alps. An earlier sample from here suggests that the area was ice free some time in the past 12,000 years—a big surprise, and possible evidence that even the higher Alps may be more susceptible to losing ice rapidly than previously thought.  Rhone project web page


EARLIEST HUMANITY  Archaeological dig, Kenya   JULY 10-25, 2017 and ONGOING
The remote desert region around northwest Kenya’s Lake Turkana is the source of many key early human fossils and artifacts. Paleoclimatologist Kevin Uno will join an excavation team led by archaeologist David Braun of George Washington University to the Koobi Fora formation, on the lake’s east side, where they expect to find abundant stone tools. Uno will help date these by analyzing adjoining plant remains. The dig will be repeated in 2018 and 2019. Lamont-Doherty geologist Christopher Lepre, who also works around Turkana, recently helped a separate team date what are currently the world’s oldest known tools, at 3.3 million years. Lepre uses changes in earth’s magnetic field to date artifacts; he tentatively will return to Turkana this year as well, pending funding.  Story/video/photos of Turkana work

DE-ICING CENTRAL ASIA  Chinese  Himalayas, Sichuan Province, SUMMER 2017
Much of mountainous central Asia, where glaciers feed water to hundreds of millions of people, is warming faster than the rest of the world. What did it do in the past? Scientists are working to understand the chronology of deglaciation here, to get at the root causes of abrupt climate changes, including any that might be coming up. In Sichuan province, glacial geologist Aaron Putnam will lead an expedition to a splinter range of the Chinese Himalayas, where landforms left by receding glaciers at the end of the last ice age are exceedingly well preserved. He and his team will chisel or blast off samples of boulders dropped by the ice for high-precision dating. By mapping out past positions of glaciers, he and colleagues hope to add to the understanding of how natural changes in earth’s orbit and carbon-dioxide levels influence climate, and what the consequences are. Done in conjunction with Chinese colleagues.

SNOWFALL, ABRUPT CHANGE AND THE NORTHERN ICE  Sampling lakebeds, rock outcrops, western Greenland  JULY-AUG 2017
Greenland’s ice is declining, possibly threatening coastal cities with inundation in coming decades. But some scientists argue that the ice sheet may remain fairly stable at least in the short term, because warming could soon produce more snowfall to offset melting. To help resolve this question, a team including polar scientist Nicolás Young is studying how temperature and precipitation have combined to affect the ice over the past 8,000 years. Working by helicopter and camping in the field, they will sample rocks and lakebed sediments around the ice edges, and analyze them for signals of ice advances and retreats. In a related project, Young’s team will also test the competing hypothesis: that the ice could waste abruptly as a result of temperature alone. This idea is supported by glacial geologist Joerg Schaefer, who recently published a study suggesting Greenland was nearly ice free during one or more past warm periods. The team will sample debris that could indicate what the glaciers did during short-term temperature shifts 8,200 and 9,300 years ago, and  Schaefer will analyze it using newly available pinpoint methods able to distinguish events during time scales of just decades.  Description of precipitation project  /  Description of abrupt change project  Ice-free Greenland study

CARBON STOREHOUSE  Studies of plants, northern Alaska  MID- AUG 2017
For thousands of years, plants in arctic bogs have soaked up vast amounts of carbon dioxide, storing it in the dead plant matter that makes peat. With warming climate, vegetation types are changing, and some bogs are thawing and releasing their carbon—but it is not clear whether the net effect will be more carbon storage, or less. In a multiyear project out of the North Slope’s Toolik Lake Field Station, paleoclimatologists Jonathan Nichols and Dorothy Peteet are studying both living plants and the remains of their predecessors, and their ability to store carbon.  Video on bog project


TREELINE VS. TUNDRA  Plant/soil/weather surveys, northern Alaska and Northwest Territories  JUNE/JULY 2017, continuing 2018
Across the fast-warming arctic and subarctic, tree seedlings now taking root may eventually advance the 13,400-kilometer-long circumpolar treeline into what is now open tundra. This could portend huge changes in far northern ecology, and the carbon budget of the planet. Teams have placed suites of sophisticated instruments to measure physiological processes of trees at the very edge of their range, and are integrating real-time observations on the ground with remote-sensing data to tease out what might happen. Last June, a team including plant physiologist Kevin Griffin and ecologist Natalie Boelman planted instruments in plots along northern Alaska’s Dalton Highway. They will return here in June or July, and/or work at similar sites near Inuvik and Fort McPherson, in Canada’s Northwest Territories. All sites are accessible by road.  Story, video and slideshow on the project  / Tundra ecology website

TEAM VOLE  Climate-related small mammal studies, northern Alaska, JULY 2017, continuing through 2021
Researchers have been studying the effects of warming climate on tundra plants for nearly three decades, but very little is known about how voles and other numerous rodents may react, possibly producing unpredicted changes to the ecology of the tundra. Plant physiologist Kevin Griffin and ecologist Natalie Boelman will study plant-eating rodent populations and their effects on plant communities at plots in the northern foothills of Alaska’s Brooks Range, the southerly Seward Peninsula and the northwestern coastal village of Barrow. The five-year project will include setting up experimental plots to monitor rodent populations in relation to plant growth and composition, and making projections of their interactions over the next 50 to 100 years.  Story, video and slideshow on related tree line project  / Tundra ecology website

MARS ON EARTH  Surveys of stromatolites, Wyoming  AUG 2017
Stromatolites—masses of rock built up in shallow water by ancient photosynthetic bacteria—are among the most visible signs of ancient life. Southern Wyoming’s Green River region has some of the most spectacular formations, rising 30 to 60 feet above the deeply eroded landscape, thought to be 30 million to 50 million years old. Geochemist Sidney Hemming and colleagues will spend two weeks studying the formations to refine understanding of how and when they were laid down. Camped in the field, the team will map strata and take samples for lab analysis. The research may be used as an analog in the search for life in Mars’s Gale Crater, where, if life did exist in the past, the remains might resemble stromatolites. The work may also apply to oil exploration, since stromatolites can produce petroleum when buried below the surface.

ARCTIC GLACIER HISTORY Lake coring, Svalbard Archipelago, Norway, LATE AUG-EARLY SEPT 2017
With the aim of putting the currently rapid retreat of Arctic glaciers into the context of the last 10,000 years, researchers will travel by ship and foot to collect sediment cores from lakes in the northernmost reaches of Norway’s Svalbard Islands. Minerals in the sediments can tell scientists when glaciers expanded or shrank, and remnants of algae can tell them how temperatures varied. Lamont climate scientist William D’Andrea will join colleagues in this completion of a project started in 2013. The team will probably sail from Longyearbyen, the only real settlement in the mostly barren islands. Story on D’Andrea’s previous work in Svalbard

MYSTERY OF THE MOAI Lake coring, Easter Island  OCT 2017
Easter Island is one of the most isolated places on earth. It was probably not colonized by people until about 1,000 years ago, when a now-lost civilization erected giant stone sculptures, or moai, but then quickly collapsed. Popular theory says the settlers committed “ecocide” through deforestation, introduction of rats, and generally exhausting resources. But paleoclimatologist William D’Andrea believes the evidence is weak, and that climate swings may have played an unsuspected part. He aims to plumb a deep volcanic crater lake for sediment cores spanning some 4,000 years, and analyze them with newly advanced techniques to better understand exactly when people arrived, and what happened to them. The cores should reveal precipitation and fire patterns over millennia and, using new DNA methods, the exact arrival time of humans and livestock. He suspects the results may help rewrite the history of the island, and exhibit a powerful ecological lesson for current times.

RISE OF DINOSAURS  Geology, fossil hunting, China MAY 2017; Arizona, Utah TBD
Lamont paleontologist Paul Olsen is studying shifts in the climate some 180 million to 200 million years ago, when dinosaurs rose. In May, he will join an expedition with Chinese colleagues to the Junngar Basin desert in northwest China. Finds made by the team last year suggest that at least some dinosaurs resisted freezing conditions that killed off competitors at one point—a possibility that might change some views of their evolution. In closely related work, Olsen and colleagues will continue investigating rocks from the same time in the region around Arizona’s Petrified Forest National Park, where recent drilling has yielded new data. Olsen plans to scope out two future drilling sites, in the desert near southern Utah’s Zion National Park, and Ward Terrace, on Navajo land in northern Arizona. Tentatively, a workshop to discuss new will be held in Flagstaff, Ariz., in September or October 2017. Story, video and photo gallery on Petrified Forest fieldwork

SEA ICE AND NATIVE CULTURE  Drone flights, Chukchi Sea, northwest Alaska  SEPT/NOV 2017 and SPRING 2018-19
In the first project of its kind, geophysicist Chris Zappa and colleagues will study the decline of sea ice in the Chukchi Sea, off northwest Alaska, using drones and traditional knowledge. Working out of the native coastal community of Kotzebue, scientists will collaborate with residents to design research questions and procedures, incorporating local knowledge of water currents, seasonal weather and wildlife. Instrument-equipped drones will record sea-surface temperatures, ice topography and thickness, changes in algae biomass and other qualities. Drones, never used in this setting before, can observe on much finer scales than satellites can. Their combination with indigenous knowledge is expected to open new insights into how climate change is acting upon the northern sea ice, and improve projections for the future. Pilot flights and initial community meetings take place this year; larger campaigns will be carried out in spring 2018 and 2019.   Article on the project / Exploring earth in real time

Mexico is strung with potentially explosive volcanoes, but their magma sources are not fully understood. In 2017, geochemist Susanne Straub hopes to continue previous work ascending active high peaks to collect samples of lava and tephra for analysis. At elevations up to 4,400 meters, sites prospectively include Malinche, Pico de Orizaba and Sierra Negra volcanoes. The collections are aimed at testing the idea that the volcanoes are fueled when parts of earth’s crust sink and mix with material from the mantle, further down. This may shed light on how explosive magmas form, move upward, and how long it takes to build to an eruption.

Recent work in densely populated Bangladesh has revealed geologic stresses that could lead to huge earthquakes, tsunamis and sudden shifts in the courses of great rivers. Teams led in part by geophysicist Michael Steckler visit widespread parts of Bangladesh regularly to assess these threats; next trip is potentially in spring 2017, to examine traces of past quakes. In related research, geologists Leonardo Seeber and Paul Betka are mapping faults, past river-course changes and earthquake potential in adjoining areas of northeast India and western Myanmar.   Watch a documentary about the project / Project blog / Giant Earthquakes Threaten Bangladesh

ICE AND ROCK  Geologic fieldwork, Transantarctic Mountains  NOV 2017
Recently, geophysicists have roughed out maps of Antarctica’s mountains, valleys and plains, but no one has actually seen most of these features; they are 98 percent buried under deep ice. Thus, almost nothing is known about their composition or evolution. To help remedy this, a team including geochemist Sidney Hemming will traverse sections of the Transantarctic Mountains, a 3,500-kilometer range of high peaks sticking above the ice that bisect the continent. The scientists will make measurements and take samples of rocks for comparison with ocean sediments formed along the continent’s edges by erosion from the interior. They hope that analyses will help clarify the erosion history of Antarctica over the last 34 million years. This would in turn shed light on past climates, and how they have affected the ice cover, and enable better projections to be made for the future. Done in conjunction with the University of Arizona.

MELTING CONTINENT  Physical/biological oceanography, Antarctic Peninsula JAN-FEB 2018
For nearly 40 years, scientists have monitored the effects of climate change on the Antarctic Peninsula, one of earth’s fastest-warming regions. As part of a global network of Long Term Ecological Research (LTER) stations, researchers have witnessed a sea-ice season now three months shorter, and dramatic shifts in wildlife populations, including penguins. Hugh Ducklow, a biogeochemist at Lamont-Doherty, is lead investigator of the LTER Project; he and colleagues will spend a month on the icebreaker Nathaniel B. Palmer cruising the peninsula’s west coast to study its creatures and collect physical data. In 2015, the program added a new team, studying Antarctic whales.  Story on recent work on the peninsula / Team paper on ecological changes


WINTER COVER  Studies of snowpack, Catskill Mountains  EARLY-MID  MARCH 2017 and CONTINUING
NASA satellites can see snow cover across the country and the world from afar, and these observations are vital for projecting water supply, soil moisture and the effects of climate change. But snow can be surprisingly complicated in terms of how much water it stores, and researchers also have to look up close. Early this spring, polar scientist Marco Tedesco will scout out sites in upstate New York’s Catskill Mountains where, in future years, he and colleagues will measure snow grain size, density and other qualities, and compare these with remote images. Going forward, the sites will also be used to test instruments with which Tedesco and colleagues may study snow in the Arctic or Antarctic.  NASA’s related SnowEx program

BOGGED DOWN  Coring of bogs and lake bottoms, New York metro area and Catskill Mountains   ONGOING
Paleoecologists Dorothy Peteet and Jonathan Nichols are creating a chronology of the New York region’s environment over the past 20,000 years, using cores of sediment from lake bottoms, marshes and bogs from northern New Jersey to the Catskills. These contain pollen, plant remains, charcoal and other clues to climate and vegetation since the end of the last ice age. This year, they hope to core New Jersey’s Lake Marcia, at the state’s highest point, and tidal marshes in Haverstraw, Piermont and Jamaica Bay, in the Hudson River estuary. In late spring or early summer, they will drill to bedrock through an ancient bog in the high Catskills, which contains scores of old bogs.   Earth Institute article on Peteet’s work

NEW ENGLAND 200 MILLION YEARS AGO  Rock sampling/fossil hunting, New Hampshire  MARCH, APRIL or MAY 2017
Geologists have long studied unusual igneous rocks in New Hampshire’s White Mountains, but still disagree on exactly how and when they formed. Some think the rocks are part of a vast eruption that split the western hemisphere from Europe and Africa some 200 million years ago. In a heavily forested area near the town of Ossipee, paleontologist Paul Olsen and geology grad student Sean Kinney will hike around to collect specimens for analysis with newly precise dating methods. Olsen will also hunt for fossils of this era in an area thought to have once been a lakebed, which has never been prospected. The trip will be timed to proceed as soon as bare ground emerges from the snow, but before vegetation or biting insects come out. Megavolcanoes and the dinosaurs

POISONED GARDENS? Testing soil for lead, Brooklyn, APRIL-MAY 2017
Lead has long been banned from gasoline, paint and other common products, but it may still lurk in urban soils, presenting a danger in gardens and other spaces. In early April, Brian Mailloux of Barnard College and students will deploy fast-results testing kits in parks and public gardens in once heavily industrialized Greenpoint, Brooklyn. Environmental science PhD candidate Franziska Landes designed the kits; she will offer tests to residents who bring soil samples from their private gardens at three local farmer’s markets on April 22, 29, and May 2. Further sampling may take place later this spring.  Soil test instructional video

RESURRECTED SPRINGS  Studies of 1800s spas, Northeast states  SUMMER 2017
Mineral springs were popular in the 19th century for people hoping to cure health problems; but many spas have since been demolished or left to decay, or the locations of springs lost altogether. Geologist Dallas Abbott will try to re-find many springs and compare century-old water-temperature data with her own new measurements. Hotter ones will be studied to see if they match up with brand-new geophysical maps showing where the underlying crust and mantle are hotter or more fractured than normal. Possible temperature changes at colder springs may reveal whether climate change has affected underground waters. Many springs are not precisely located on old maps, so Abbott will work with local historians to rediscover them.  Volcanoes Under the Northeast U.S.?

The 1,320-square-mile Long Island Sound is heavily crisscrossed by vessels on its surface, and by energy and communications lines on its bottom—yet existing charts predate modern technology. A team including marine geologist Frank Nitsche has been mapping the seafloor and sub-seafloor in new detail, to improve the safety of navigation and management of natural habitats. The researchers use sonar pulses to create images, and may also take cores from the bottom. Cruises on the University of Stony Brook vessel Seawolf last one to five days, concentrating this year on the eastern sound.  Long Island Sound Seafloor Mapping website

AIR SENSORS ON WHEELS  Real-time monitoring via bikes, New York City  SPRING-FALL 2017, and ONGOING
In a new citizen-science project, volunteer bikers will wear sensors that measure soot, carbon monoxide and other pollutants as they ride, giving a picture of what they are inhaling. Some will wear heart-rate monitors and blood-pressure cuffs to measure short-term effects. In partnership with public radio station WNYC, the study is run by environmental health scientists Darby Jack of Mailman School for Public Health and Steven Chillrud of Lamont-Doherty Earth Observatory. Starting this spring, some 150 bikers will carry sensors for the three-year project. New Yorkers can tap into a phone app that estimates air pollution in their current location.  What’s in the air as you cycle NYC? / NYC air quality phone app / Development of personal pollution monitors / Study on urban pollutants and asthma

WATCH TREES GROW Real-time forest monitoring, Hudson Valley and New York City  ONGOING
In New York’s Hudson Valley, the extreme ranges of many southern trees rub against those of northern species, making the region a sentinel for how warming climate may affect North American forests. Some northern species such as sugar maples and beeches may already be getting edged out, while oaks and hickories, and invasive plants, move in. Plant physiologist Kevin Griffin is studying changes on long scales and short. In a new project, he has wired more than a dozen trees in the lower Hudson Valley’s Black Rock Forest with instruments that transmit daily changes in growth to his lab. The real-time network will soon expand to suburban Lamont-Doherty Earth Observatory, and the main Columbia campus, in Manhattan. Griffin plans frequent field trips with students to examine forest ecology in both urban and natural settings.  Black Rock Forest Real-Time Growth Page  /   How Climate Affects New York Plants and Animals Urban Trees of the Future

HUDSON RIVER SEWAGE  Water sampling by boat  ONGOING
In cooperation with the environmental group Riverkeeper, biologists are mapping the sources and fates of sewage in the Hudson River. Sampling is done monthly using a small vessel, from Albany to New York harbor. Water quality has improved dramatically in recent decades, but human waste still sometimes sweeps in, especially when rains swamp sewage-treatment systems. Tributaries with particular problems include New York City’s Newtown Creek and Gowanus Canal; the Saw Mill River; Pocantico River; and the Sparkill, Roundout, Esopus and Catskill creeks. Investigators: Andrew Juhl, Greg O’MullanArticle on the project / Report on the project’s progress / Latest report on Hudson SewageArticle on antibiotic-resistant bacteria in Hudson River

NEW YORK EARTHQUAKES  Seismometer installation, monitoring ONGOING
From Central Park to the Canadian border, Lamont-Doherty Earth Observatory runs seismic instruments to monitor earthquakes in the U.S. Northeast. The region sees many small quakes, and big ones are probably an underappreciated threat. The team monitors the network 24 hours a day, and travels frequently to repair and update instruments. New ones have been installed near Albany, N.Y., where recent unusual tremors have been felt; and in the Adirondack Mountains, where quakes have long been routine. Head of network: Won-Young KimLamont Cooperative Seismographic Network / Study on New York City earthquake risk / New York Times article on Albany tremors / Sonic booms mistaken for earthquakes

A BILLION OYSTERS  Restoring New York Harbor  ONGOING
Excellent oysters once populated New York Harbor, but that was before waterways were overrun with pollution and shoreline construction. The Billion Oyster Project is a long-term initiative to involve young New Yorkers in restoring New York’s marine environment by growing 1 billion oysters. Working with middle-school teachers, Lamont-Doherty scientist Bob Newton has designed protocols for monitoring oyster growth and marine conditions. At 32 shoreline sites, teachers and their students are now growing oysters on different kinds of substrates, and measuring water chemistry, wildlife health and weather conditions, along with oyster growth. Program is in conjunction with a wide consortium of institutions.  Billion Oyster Project website / Video on the project

RE-CREATING GLACIERS  High-pressure lab experiments, New York City  2017-18
Lamont geophysicist Christine McCarthy teams up with Columbia geotechnical engineer Liming Li in a series of innovative experiments to re-create what happens when a mile of ice moves over bedrock. In the first experiments of their kind, they will construct and operate a centrifuge loaded with material intended to duplicate the high-gravity forces at the base of a glacier. Experiments will be aimed at understanding what makes glaciers either stick in place or slide forward—a key, little understood question at the heart of future projections of sea-level rise. The scientists are particularly interested in how water and subglacial debris may interact to abrade bedrock and form meltwater channels. The work will be done at Columbia Engineering School.

LISTEN TO THE EARTH  Experiments in sound  and geothermal energy, New York City  2017-2018
Seismologists Benjamin Holtzman and Felix Waldhauser will join with computer-music specialist Douglas Repetto and electrical engineer John Paisley to explore how seismic data may be harnessed to expand production of geothermal energy, by converting the data to sound. They will convert signals produced by cracking of rock in geothermal reservoirs into sounds that can be interpreted by the human ear, which can then potentially be analyzed to guide geothermal production in real time. The researchers will build a library of signals from active geothermal sites, convert them into audible frequencies, and have human subjects classify and interpret the sounds. Following a small pilot, listening experiments may be crowd-sourced to include a large pool of subjects. Theoretically, the experiments can later be used to teach computers to analyze such data. Holtzman and colleagues have already used similar methods to create spectacular visual and auditory models of earthquakes that have been featured at the Hayden Planetarium and other venues.  Holtzman et al. Seismodome project


Glacial geologist Michael Kaplan will work in Chile from February to April 2017, based out of universities in Santiago and Punta Arenas. He and colleagues plan periodic field trips to Patagonia to take geologic samples relevant to how glaciers there have changed since the end of the last ice age. 

Oceanographer Braddock Linsley hopes to visit Panama’s Pacific-coast Gulf of Chiriquí to study warmth-induced bleaching of corals there, and track past bleaching events in old corals. Tentatively spring/early summer 2017. Work would involve diving onto reefs to take samples. Similar expeditions to other places including the south Pacific might take place in fall 2017.

In summer 2017, seismologists including Spahr Webb and Donna Shillington hope to drop 75 seismic instruments to the earthquake-prone Aleutian Trench seafloor near Kodiak Island, Alaska. A big quake here could wreak havoc in Alaska, and send tsunamis to the wider North American West Coast, Hawaii and Japan. By detecting patterns of small quakes, researchers will be better able to assess the potential for large ones. Article on the proposal

Seismologist Leonardo Seeber periodically returns to continue fieldwork in his native Calabria, where he and colleagues have been looking into how long-term tectonic stresses have contributed to the evolution of the Appenine Montains and their many earthquake faults, several of which have recently devastated ancient villages in the region. Calabrian Arc blog

In June 2017, oceanographer Ajit Subramaniam joins researchers from other institutions on a yearly cruise in the Gulf of Mexico—part of a long-term project to investigate the aftermath of the 2010 Macondo well explosion. Subramaniam focuses on how phytoplankton, the base of the food chain, react to oil in the water. The cruise is usually divided into two 10-day legs, with a port call in between. Project website

In June or August 2017, geology grad student Sean Kinney plans to fly a drone through canyons in eastern Utah’s Green River formation, to try and detect cyclic climate changes preserved in rock layers over millions of years. These rocks have already been studied from the ground; this is a proof-of-concept mission to test drone capabilities, which Kinney and colleagues may later apply to less-studied, hard-to-access formations in China and Norway.

Paleoclimatologist Kevin Uno and a Kenyan botanist hope to visit a dozen Kenyan national parks and reserves in 2017 or 2018 to collect plants and soils that will aid in Uno’s work of dating ancient plant remains in east Africa. He is also working on a project to trace the evolution of hippos and other semi-acquatic animals using isotopes in ancient teeth. 

Anthropologist Benjamin Orlove of the Center for Research on Environmental Decisions is working with small mountainous countries to form a coalition of glacier nations facing common threats from climate change. These include Tajikistan, Bhutan, Peru, Bolivia, Switzerland, Austria, Norway, Kyrgyzstan and Nepal. Top issues: hydropower, water resources and potential outbursts of glacial lakes. Glacierhub website

The NASA-run Operation IceBridge uses instrument-laden aircraft flown at low level over Greenland and Antarctica to observe in detail how ice sheets are changing. Next missions: March/April over Greenland. Glaciologist Kirsty Tinto is leading this effort for Lamont. IceBridge website

A team headed by Kirsty Tinto, Robin Bell and Indrani Das is helping map west Antarctica’s Ross Ice Shelf as part of the three-year multi-institutional  ROSETTA project. Now in its third year, the team is collecting geophysical data on the shelf, the ocean beneath and the seafloor, aimed at understanding the ice shelf’s sensitivity to ocean and atmospheric variability. Next flights: fall 2017.  Ross Ice Shelf blog  2016 ROSETTA work

Lamont scientists have been helping Turkish scientists map undersea faults that that could cause great quakes near densely populated areas including Istanbul. Some time in 2017, seismologist Michael Steckler plans to visit extensions of such undersea structures on land near the Gulf of Kusadasi, southeastern Turkey. Many famous ancient sites including the city of Ephesus and the great Temple of Apollo at Didyma were thrown down by quakes here, suggesting danger for modern inhabitants.  Project web page / Background from US Geological Survey

Seismologists Colin Stark and Goran Ekstrom are studying giant landslides in remote areas where no one may be watching. Their rumblings are recorded by seismic instruments, allowing the researchers to detect events that might otherwise go unnoticed. From the Himalayas to Alaska, they have then been ground-truthing signals by visiting the sites. On Oct. 17, 2015, they zeroed in on one of North America’s largest ever known slides—200 million tons of rock cascading into Taan Fjord, Alaska—and studies are ongoing there.  Finding Landslides With Seismicity / Investigating July 2016 slide in Glacier Bay, Alaska

Southern Peru and northern Bolivia lack tree-ring records, which are needed for understanding the effects of warming climate and the workings of weather phenomena such as El Niño. To fill in this gap, tree-ring researcher Laia Andreu Hayles and colleagues will sample trees around Tacna, southern Peru, in 2018. Collaborators are also carrying out work in Bolivia’s Madidi National Park, which spans a wide range of elevations.  

 Geochemist Wade McGillis has installed newly designed instruments that monitor the metabolisms of coral reefs in real time, designed to shed light on how corals are reacting to rising sea temperatures, ocean acidity and pollutants. He maintains instruments in Puerto Rico, western Panama’s Gulf of Chiriquí, the Galapagos Islands’ Darwin Island, and in one of the few systems not yet affected by humans, off the Pacific atoll of Palmyra

Naturally occurring arsenic pollutes private wells serving some 3 million Americans. A team led by geochemist Yan Zheng is studying contamination and its implications in Maine and northern New Jersey, where arsenic is especially problematic.  Arsenic taints many U.S. wells 

Due to sea-level rise and human activities, every hour, an estimated football field’s worth coastal Louisiana disappears under the water. In the tidal marshes, a team including geophysicist Michael Steckler has installed instruments in four deep wells to monitor sinkage. They will conduct a possible field trip to one or more sites at the time of the next American Geophysical Union meeting, in New Orleans in December 2017.  What Went Wrong With the Delta  

Climate scientist William D’Andrea and colleagues plan to visit the far southern Indian Ocean’s windswept Kerguelen (aka Desolation) Islands in January-February 2018 or 2019. Here, in one of the world’s most isolated human outposts, they will core sediments from lake beds and take samples of other ancient materials to better understand natural climate changes of the past, and how these may inform projections of coming changes.

Geologist Enrico Bonatti and colleagues hope to one day recover fragments of a mysterious extraterrestrial object that exploded over the remote Siberian boreal forest in 1908—the largest known impact in modern human times. It flattened many square miles of trees, but fragments, if any survived, have never been found. They believe remains may lie in the beds of certain remote lakes, and hope to search by boat, pending funding.  2015 paper on the impact

Volcanologist Einat Lev and her graduate students are studying the dynamics of lava lakes, where roiling ponds of molten material are exposed within volcanic craters. At any one time, there are only about a half-dozen such active features in the world, currently including the Congo’s Nyiragongo, Antarctica’s Mt. Erebus and Hawaii’s Kilauea. They are also studying the dynamics of lava flows, and how they redirect their paths around natural or manmade barriers, including in Hawaii and Chile.  Story, video and photo gallery on Kilauea  Story, video and photo gallery on Chile’s Kilauea 

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