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Tracing the Arctic

TRACES of Change in the Arctic - Wed, 08/19/2015 - 00:07
Leaving Dutch Harbor

The U.S. Coast Guard cutter Healy leaving Dutch Harbor, Alaska, and heading to the high Arctic for the GEOTRACES research cruise. It doesn’t take long to move from a landscape of steep carved cliffs to one of endless waves on an Arctic passage. Photo: T. Kenna

Dutch Harbor Alaska is located on that long spit of land that forms the Aleutian Islands of Western Alaska. Research vessels launch from this location and head northeast into the Bering Sea on their way to the Bering Strait, the gateway to the Arctic.

map of Dutch Harbor

Dutch Harbor, Alaska (from http://www.vacationstogo.com)

Our research cruise is part of the international Arctic GEOTRACES program, which this summer has three separate ships in the Arctic Ocean. The Canadian vessel headed north in early July, and the German vessel will follow a week behind the Healy. Each will be following a different transect in the Arctic Ocean to collect samples. The U.S. vessel has 51 scientists on board, each with a specific sampling program. We will focus our time in the western Arctic, entering at the Chukchi Sea. (Follow the expedition here.)

What is GEOTRACES studying? The program goal is to improve our understanding of ocean chemistry through sampling different trace elements in the ocean waters. Trace elements can be an asset or a liability in the marine system, providing either essential nutrients for biologic productivity, or toxic inputs to a rapidly warming system. This part of the larger program is focused on the Arctic Ocean, the smallest and shallowest of the world’s oceans and the most under siege from climate change. Results from this cruise will contribute to our understanding of the processes at work in the Arctic Ocean, providing both a baseline of contaminants for future comparisons as well as insights into what might be in store for our future.

The land surrounding the Arctic Ocean is like a set of cradling arms, holding the ocean and the sea ice in a circular grasp. Within that cradle is a unique mix of waters, including freshwater from melting glacial ice and large rivers, and a salty mix of relatively warm Atlantic water and cooler Pacific water. Our first sample station lasts over 24 hours and focuses on characterizing the chemistry of the water flowing into the Arctic from the Pacific Ocean. This is critical for locking down  the fluxes and totals of numerous elements in the Arctic.

Map of sea ice

Daily map from the ship showing sea ice cover. Yellow is the marginal ice, and the red is heavy ice. The location of the Healy is visible at the lower edge of the photo at the edge of the red dot.

In the past the “embrace” of the Arctic land has served as a barrier, holding in the sea ice, which is an important feature in the Arctic ecosystem. In 2007, however,  winds drove large blocks of sea ice down the Fram Stait and out of Arctic. In recent years the Arctic sea ice has suffered additional decline, focusing new attention on the resource potential of this ocean.

Unexpectedly this year, the sea ice is projected to be thick along the proposed cruise track, thick enough that it might cause the ship to adjust her sampling plan.

Walrus

Walrus resting on Arctic sea ice. Photo: T. Kenna

The walrus in the above image are taking advantage of the Arctic sea ice. Walrus use the ice to haul out of the water, rest and float to new locations for foraging. Walrus food of preference is mollusks, and they need a lot of them to keep themselves satisfied, eating up to 5,000 a day, using the sea ice as a diving platform. As the ship moves further from shore, we will lose their company.

Margie Turrin is blogging for Tim Kenna, who is reporting from the field as part of the Arctic GEOTRACES, a National Science Foundation-funded project.

For more on the GEOTRACES program, visit the website here.

L2-14

Sugar - Sun, 08/16/2015 - 22:33
... so my mother can see I'm wearing a hardhat (Hi Mom).  Galen getting it done, Natalie with commentary, Yogi counting it down ...



Shot L3-01 video

Sugar - Sun, 08/16/2015 - 21:52


HUGE THANKS to all the volunteers who worked so hard to make this project such a great success. It  was a pleasure working with you and getting to know you all.  Also mega thanks to all the landowners who were kind enough, and trusting enough, to let us put a source on their property.  None of this could have happened without your generosity and spirit of curiosity.  Thanks so much.

Dan



What goes bump in the night? We do.

Sugar - Sun, 08/16/2015 - 11:30
Steve Harder prepares to detonate a shot.Controlled blasts in deep holes are the source of sound waves for our program.  We set them off in the middle of the night because that is when it is quietest along the county and state roads where our instruments are shallowly buried on profiles across eastern Georgia and listening for sound waves.  During the nights of Aug 7, 8 and 11, our blasting experts Steve Harder, Galen Kaip and Ashley Nauer prepped and detonated 25 blasts along our lines, with some help from other enthusiastic scientists (like me).  Our shots have between 200 and 1600 lbs of explosives – mostly ammonium nitrate emulsion. At each shot, we connect a long wire between the drill hole and a blast box, move back a safe distance from the shot site, wait for the appointed time, and set off the blast. The blast box is used to detonate the shot at a very accurate time. There were two shooting teams, and each has different time windows for blasting to ensure that we only do one blast at a time. If two blasts occurred at the same time, the sound waves could interfere with one another.
Ashley Nauer and Kent Anderson wire up a shot.
When the blast goes off, you feel it more than hear it.  The sound waves radiate out from the shot traveling both within the earth and along the surface. Waves that travel along the surface of the earth (“surface waves”) cause the most ground shaking. If the ground is wet, sometimes a geiser briefly occurs 5-10 seconds are the explosion.  Not surprisingly, plenty of people are interested in experiencing this besides us!  Several of the property owners who very kindly gave us permission to set off these blasts on their land came out in the middle of the night to spectate.
Even putting aside the obvious rush of setting off a bunch of blasts, its fun to be out and about in the Georgia country side at night.  A cacophony of sounds echo around the forests from crickets and frogs.  Immediately after a shot, all of these creatures very briefly go silent – they know that something has happened! And then they ramp up again.  We also see other animals prowling around, including amardillos. A meteor shower occurred during our final night of blasting, which we could see quite well from the rural stretches of Georgia, far from light pollution of population centers.

Donna Shillington, LDEO

Jim Gaherty illuminates a steaming hole that formed over the shot site from the blast.
The shot team filled in this hole the next day.Armadillo patrols one of shot sites.

More updates from our field teams...

Sugar - Sun, 08/09/2015 - 12:35

Seventeen teams are rounding up 1953 small seismic stations along our 350-mile-long line across eastern Georgia, and they continue to send texts and pictures with updates on their work…

“21757. Still kickin”
Kevin hunts for missing texans with the metal detector....
“Team 11 is all done and headed home to the mother ship”

“We’re not coming back unless we have all of them!”

“We had a helper at site 20431!”

“Hello Donna Rach and I are crushing it right now”

“Daily check in, we’re making good time so we should see the puppies soon enough”


Making metadata...
“Recovered a Texan at stop 20858. This one doesn’t seem to be working correctly, whenever I press it it just tells me things like “The Cowboys are America’s team” and “Bush was an American hero”. Weird.



“We got to 20170 the one with the ant colony”

Loaded up with Texans and geophones
“Stop 20804. Everything’s fine, except some guy came out of the woods and bit Brent. All he’s saying now is “brains” and is acting super creepy. I’ll keep an eye on it and only use the shovel if necessary”




“Will do! I will let you know if we become stuck… Looks likely”

Unearthing another Texan

“Just beat the downpour and headed for base”

“Stop 20879. Found the Texan disconnected from the geophone on top of where we buried it with pieces of bag around it, looked everywhere for the geophone. Found it about 5 m down the hill near the tree line with bite marks all along it. Either an animal dug it up or a very hungry confused thief”



Picking up litter?
“Found 2 dollars at 21058! Who says geology doesn’t pay well?”

Was not seen on the line...
Was seen on the line... yikes.

Best texts from the field (so far...)

Sugar - Thu, 08/06/2015 - 07:43
Seventeen teams have been out deploying small seismographs and geophones along a 300-mile-long profile across eastern Georgia, and they have been checking in with me regularly by text message. Some highlights from texts and pictures from our groups:



“Team4 is Done! I repeat again, 4 is done! Heading back to the sweet onion city! ☺”

“Still alive”



“Team gruesome twosome on our way back to the hub”

“We are gonna skip installing 21520 because both sides of the streets are well maintained yards and there’s not a great place to put a Texan”

“We’re done! Just kidding haha. We’re on our second!”

“We’re in the zone”

“All geophones buried --- I am beat. Where’s a can of spinach when ya need one, lol”

“It's a long way to the top if you want to study rocks”
"Sunrise at station 21779"
“We’re dirty but doing well!”


“Still digging. Still have not reached China. Will attempt again on next hole”


“On 20186 and we lost our bubble level. We even dug up the last geophone to see if I accidentally buried it”

“We just deployed our last station, 20224. Can we go to Jekyll Island?”



Donna Shillington, LDEO

Digging Holes and Filling Batteries -- A party in Vidalia, Georgia

Sugar - Tue, 08/04/2015 - 07:52

The SUGAR deployment team arrived en-masse on Saturday bringing the Line 2 personnel total to a whopping 45! The day started off with science and overview lectures by the SUGAR principle investigators Donna Shillington and Dan Lizarralde.  Students diligently rearranged the ten’s of Texan boxes into a makeshift lecture hall, complete with a projector and a Bluetooth sound system. 

With the science lecture complete and stomachs full of pizza, the entire group ventured out to conduct a practice deployment under the watchful eyes of the PASSCAL instrument team.  All 17 teams participated in the activity, standing in a single file line in front of our hotel digging practice holes, connecting the Texans to the geophones, and mindfully orientating them with their handy-dandy bubble levels. 

After a sweat filled hour under the Georgia sun, we caravanned back to the instrument center for a “battery party”. I call it a battery party in honor of the “streamer parties” that students will often participate in on active source seismic research cruises in which kilometers of cable need to be reeled off and rearranged.  In our case a battery party consisted of the 32 students placing 2 D-cell batteries inside each of the 2,000 Texans.  The instrument center quickly transformed from an orderly lecture hall into a mass of empty battery boxes and disassembled Texans though despite the apparent chaos, we got the job complete and the Texans filled in only a few short hours. 

Next up will be flagging the instrument locations and the actual deployment.  We have our fingers and toes crossed for dry weather and safe road conditions as the student teams prepare to set off on their flagging and deployment expeditions. 

Natalie Accardo - Columbia University, LDEO


The SUGAR2 deployment team hails from all across the United States
covering more than 15 states and 21 different universities/institutions.   

The deployment team sits with rapt attention listening to
the science and overview lecture.

Students practice digging holes and deploying Texans
near our hotel in Vidalia, Georgia.
Students and PASSCAL personnel take over the instrument center
filling 2,000 Texans with D-cell batteries.
The "battery party" comes to an end as the last Texans are filled and
the boxes are rearranged for easy late-night programming by the PASSCAL team.  



2000 “Texans” with all the fixin’s….

Sugar - Sun, 08/02/2015 - 09:21
During our project, we plan to record sound waves generated by a series of controlled blasts on two profiles, one with 2000 instruments (“Texans”) deployed along a 350-mile-long profile across Georgia and another with 700 Texans deployed along an 80-mile-long profile.  In total, that’s 2000 instruments and 2700 deployments!! Lot of instruments means lots of stuff.   The basic components of the instruments themselves were shipped in ~160 big plastic boxes arranged into ~18 pallets.  Each of these instruments will be powered by two D-cell batteries. To power the instruments for both lines, we needed 5500 D-cell batteries.  We picked them up from the Lowes in Vidalia as a 2000-lb pallet.  For each station, we also need flags to mark the locations, and bags and tape to protect the data recorder.  We very quickly filled up our 1800-square-foot field center in Lyons, GA with all these goodies…

Donna Shillington,  LDEO

Freshly delivered pallets of boxes holding all the science equipment
The PASSCAL team re-arranged the boxes into a T for their own devious reasons :)The trusty Silverado loaded down with 2000 pounds of batteries! (Dan for scale).



Drill, Baby Drill! Drilling and filling for the SUGAR seismic shots

Sugar - Fri, 07/31/2015 - 12:14
We are using sound waves to image the subsurface of Georgia along two long transects.  It is like creating a huge x-ray of the geology in the region. Thousands of instruments (termed “Texans”) will record sound waves that are generated from a series of controlled seismic sources (“shots”) that we will set off along the line. 

For the last few weeks, the seismic source team, based at the University of Texas – El Paso, and the drillers have been hard at work drilling twenty-six 60- to 100-foot-deep holes that will contain the explosives used to create the sound waves.  Once the holes are drilled (the first stage of which is termed spudding), emulsion explosives with boosters and caps are carefully installed in the base of the hole and the remaining height is filled in with dirt and gravel (“stemming”). 

Now with the 26 shots drilled and patiently waiting for the electronic signal to blow, all we have left to do is deploy the 2,000 instruments that will record the sound waves … An easy feat for the 50+ scientists, students, and engineers descending on Vidalia, GA over the next few days.  Stay tuned for our progress and adventures as we continue on this epic scientific undertaking.

Natalie Accardo - LDEO

The SUGAR seismic source and science team from left to right:
Steve Harder, Dan Lizarralde, Ashley Nauer, and Galen Kaip
The drill rig set up and drilling a shot on SUGAR Line 2.

Galen Kaip prepares the source charges (white tubes) on the truck bed as
the drillers complete a shot hole.
The source team carefully lowers the prepared seismic charges into the complete shot hole.
Ashley Nauer (red hat) stands waiting with shovel in hand to fill the remaining height of
the hole with sand and gravel.   
The drill team monitors the process of spudding, the very first stage of drilling the
shot hole, for SUGAR line 2.
The source team and drill team push on late into the night to ensure the completion of the
final shot for the entire SUGAR experiment.  

Ramping up for bigger, badder SUGAR Part 2

Sugar - Tue, 07/28/2015 - 23:11
We are in Georgia gearing up for the second phase of field work for the SUGAR project, which will involve collecting seismic refraction data along two profiles spanning eastern Georgia. In the coming weeks, we’ll deploy thousands of small seismometers along county and state roads across the region, which will record sound waves generated by a series of controlled blasts. We can use the sound waves to make pictures of geology beneath the surface. Geological structures beneath Georgia record the most profound events involved in the formation and evolution of the eastern North America continent. In particular, we want to image an ancient suture between Africa and North America that formed when these continents collided to create the supercontinent Pangea, frozen magma bodies from one of the biggest volcanic outpourings in Earth’s history, and continental stretching and thinning that lead to the breakup of Pangea and formation of the Atlantic Ocean.


Map of SUGAR lines, showing two possible locations of the ancient suture (red dotted lines)

We collected similar data in western Georgia last year during the first phase of the SUGAR experiment imaging these same features. During that field program, we deployed 1200 seismometers and set off 11 controlled blasts along a 250-mile-long line, which felt like a big project at the time. But this year, we will go even bigger! In eastern Georgia, we need to span an even larger area to encompass our geological targets. One of the reasons that we need to look at a bigger swath of the earth is that there is a debate about the location of the suture here – it could be as far north as Milledgeville, GA or as far south as Baxley, GA. (In case you are not up on your Georgia geography, those towns are ~100 miles apart). This means longer profiles, more instruments and more blasts! We will deploy a total of 2700 seismometers and detonate 26 blasts along two profiles. The longer profile spans 350 miles from Winder, GA to the Florida-Georgia state line near St Mary’s Georgia. Stay tuned!

Donna Shillington, LDEO 



Stay Tuned for SUGAR 2!!

Sugar - Wed, 07/22/2015 - 21:57
In just a few short weeks a mass of students and scientists will descend on southern Georgia with work boots and sunscreen in hand to take part in the second portion of the SUGAR active source experiment.  Make sure to stay tuned for regular updates on our progress and to learn more about the exciting science that motivates this amazing field expedition!

Tiny Architects

Geopoetry - Fri, 07/10/2015 - 11:00
 Kelly Strzepek.

Foraminifera are tiny plankton that typically build elaborate shells of calcium carbonate. Their kind have lived in the ocean for millions of years. Photo: Kelly Strzepek.

 

Heaved upwards from your deep and watery grave,

From the quiet murk onto a chaotic, brine-encrusted ship deck,

You’re ever so carefully washed free from the mud,

From all the rinsings of continents that settled out of the sea with you

Like snow, softly entombing your remains.

Now through my looking glass, you lie scattered

Like discarded Christmas ornaments,

Lying in broken glory, shards of a former world;

Tiny fossils, utterly bewitching.

Some people say there must be a knowing architect behind all this design;

Looking at your tiny turrets, buttresses, embellishments,

I understand the sentiment.

How is it, and why is it, that you craft such castles

Smaller than a grain of sand?

I know it is your work, not that of some artful watchmaker;

I’ve watched your live descendants raise their miniscule arches,

Lay down their mortar and stone, precisely and perfectly.

Still, it’s hard to believe my eyes. I am desperate to ask you,

Clever protist with no brain, to tell me all your secrets.

I wonder if some life-form, eons hence,

Will ever find my ancient bones,

Marvel at their beauty,

And imagine the life of the mysterious being that grew them.

 

_________________________________________________________________

This is one in a series of posts by Katherine Allen, a researcher in geochemistry and paleoclimate at the Lamont-Doherty Earth Observatory and the Department of Marine and Coastal Sciences at Rutgers University.

Finding Pluto

Geopoetry - Fri, 06/26/2015 - 11:00
 JHUAPL/SwRI

This summer, a space probe that has been traveling for 9 years will finally reach Pluto. Image: JHUAPL/SwRI

 

Far away, a beloved dot

Arcs through cold and shrouded spaces,

Not lonely, as we had once thought,

But circled by more rocky faces:

Charon, Nix, and Hydra found,

Classified as “dwarf” or pseudo,

And though such bodies now abound,

None sparks wonder quite like Pluto.

On the hunt for Planet X,

Tombaugh found a ball of light,

Among a crowd of tiny specks;

Imaginations soon took flight.

Elusive is this outerworld;

Nine years ago we took a dare –

To deepest space, a scouter hurled

… and soon it will be there!

 

______________________________________________________

Further reading:

Pluto-bound probe faces its toughest challenge: finding Pluto, Witze (2015) Nature

NASA Mission: New Horizons to Pluto

This is one in a series of posts by Katherine Allen, a researcher in geochemistry and paleoclimate at the Lamont-Doherty Earth Observatory and the Department of Marine and Coastal Sciences at Rutgers University.

 

‘Faux pause’

Geopoetry - Fri, 06/12/2015 - 10:30
 Maintenance workers on an ocean buoy, NOAA.

The global ocean buoy network has been expanding in recent years. Accounting for small, consistent offsets between temperatures measured by buoys and by ships reveals a greater global warming trend than previously calculated for the past 15 years. Image: Maintenance workers on an ocean buoy, NOAA.

 

New data support the conclusion

The “hiatus” was mostly illusion.

They say that the keys

Are the poles and the seas …

The next job: reduce the confusion.

 

_______________________________________________________

Further reading:

Global warming “hiatus” never happened, study says, Wendel (2015) EOS

Possible artifacts of data biases in the recent global surface warming hiatus, Karl et al. (2015) Science

This is one in a series of posts by Katherine Allen, a researcher in geochemistry and paleoclimate at the Lamont-Doherty Earth Observatory and the Department of Marine and Coastal Sciences at Rutgers University.

MESSENGER

Geopoetry - Fri, 05/01/2015 - 12:19

 

MESSENGER's last image of Mercury. (NASA)

MESSENGER’s last image of Mercury. (NASA)

 

Alien orbits you plied,

While we vicariously spied

A distant globe …

Oh, tough little probe!

It’s been a wonderful ride.

 

 

_______________________________________________________

Further reading:

MESSENGER’s last image

This is one in a series of posts by Katherine Allen, a researcher in geochemistry and paleoclimate at the Lamont-Doherty Earth Observatory and the Department of Marine and Coastal Sciences at Rutgers University.

An Earth Epic

Geopoetry - Fri, 04/10/2015 - 10:30
 Ricardo Ramalho

Photo: Ricardo Ramalho

I hear that the Archean Earth

Spewed lava and was hot,

(While much later, “Snowball Earth,”

Apparently was not),

Some have said that life sprung out of

Spreading-ridge-type stew,

Photosynthesis seems likely

Based on carbon records, too.

Crust was forming, oceans warming,

Stromatolites came later,

(We have to wait a long, long time

for T-Rexes, Fish, and Gators)

The Prot’rozoic was really wild,

Stromatolites went crazy,

Our atmosphere gained oxygen,

The rest is a bit hazy.

Super-duper continents

and Banded-Iron formed;

Glacial stuff beneath cap carbs

Say Earth cooled and warmed.

Half a billion years ago

Is when it gets exciting …

Suddenly, life took a leap!

All living, breeding, fighting.

Brachs and Crinoids, Bryozoans,

Weirdo shells galore,

Nautiloids (like giant dunce caps)

Roamed the ocean floor.

Then disaster strikes them down,

(This happens four more times)

And we soon approach some names

That are difficult to rhyme.

Gondwana drifts to the South Pole,

and glaciers spread like malls,

The world was likely colder,

and sea level took a fall.

So ends the years of trilobites

(and the Ordovician)

But soon we get new forms of life,

And we can all go fishin’!

Finally the land joins in,

And starts to grow green stuff,

(are you still enjoying this,

or have you had enough?)

More death, more life, more death again,

While giant mountains grow,

(we think this lowered CO2,

but no one really knows).

The Carboniferous was lush,

(that’s where our coal is from!)

Amazing bugs and dinosaurs,

(though some say they were dumb).

Gymnosperms and vertebrates,

Then the grimmest death so far,

Then Triassic life recovered,

with reptiles big as cars.

We leave aragonitic seas behind

And move towards today,

Though continents were not in place,

(that great Tethys seaway).

About 100 million years ago

Deep sea carbonates abound,

So now the ocean’s buffered well,

(and planktics can be found!)

And THEN Earth has a real bad day,

An asteroid hits hard,

Fire-balls and darkened skies,

Life is burned and charred.

(Holy cow, this is quite long,

let’s finish it already!) …

Cenozoic history

was anything but steady.

It started hot, they also say

that CO2 was high;

Wimpy mammals take the lead,

(I hear that bats could fly).

Himalayas cause a ruckus,

Gateways open/close,

We start to get some glaciers,

And cold, deep water flows.

From the Greenhouse to the Icehouse

Now we’re really getting chilly,

Then humans come along (that’s us)

and everything gets silly!

So there you have it, Earth through time,

History deep and long,

I surely skipped a lot of stuff,

And may have got some wrong.

I hope if you’re still reading

that your brain is not too vexed,

Now it’s time to face the future,

…. I wonder what is next!

 

________________________________________________________

Further reading:

See the geologic record.

This poem was first published on the author’s website on May 22, 2009.

This is one in a series of posts by Katherine Allen, a researcher in geochemistry and paleoclimate at the Lamont-Doherty Earth Observatory and the Department of Marine and Coastal Sciences at Rutgers University.

Sunrise...Sunset...Sunrise...Sunset...

The ENAM Seismic Experiment - Sun, 04/05/2015 - 03:46
A compilation of sunrise and sunset photos aboard the R/V Endeavor. 

Day 3 sunset

Day 4 sunset

There is a bizarre foggy mist across the entire surface of the ocean.

This was a huge cargo vessel off in the distance. I know it isn't a sunrise or sunset but its a sweet pic.

Day 6 sunrise with a storm front in the distance.

Panorama of Day 6 sunrise.

Porthole sunset with my refection.

First bit of sunset color directly off the bow of the Endeavor.

about 20mins later....





Terry Cheiffetz




Go Endeavor Go! Nighttime Adventures...

The ENAM Seismic Experiment - Sun, 04/05/2015 - 02:25
A unique low light vantage point of the Endeavor

A look at all the instrumentation on the bridge of the R/V Endeavor. 

The full moon as it shines over the ocean water! Creepy!

The OBS retrieval at night! One of the crew members installed a light at the end of the hook to aid in the equipment capturing process. 


This picture was take from the bridge of the Endeavor. It is the Quantum of the Seas cruise ship at ~0300 during an OBS retrieval. 
This picture is ~2 miles away from the Quantum of the Sea cruise ship and is as close as the Endeavor can legally pass another large ocean vessel under maritime law. The bright celestial object overhead is Jupiter.

This photo shows the Endeavor docked at port just before we embarked on this high seas adventure. The first evening we went to a chinese restaurant called 7 moons. By the time we arrived back at the shipyard the gate had been pulled shut and appeared to be locked and was topped with plenty of barbed wire. After some deep thought our highly intelligent group realized that it was pulled closed and all we had to do was roll it open haha. There is a geophysicists joke embedded in that experience. 

This is the WHOI crew carefully bringing the OBS back onto the ship. Hard hats and life preservers are required when on deck during retrieval operations. The OBS in this photo is hanging down beneath the orange apparatus.  

As the Endeavor aligns itself with the OBS in the ocean currents at night the WHOI crew get in position to capture the Ocean Bottom Seismometer. 


After a successful OBS capture the WHOI crew quickly disassembles the OBS and prepares it to be stacked with the other equipment that is strongly secured to the surface of the deck. 

This shows the spotlight at night. It is used to help orient the ship alongside the OBS in the pitch black darkness of the night at sea. We have also thankfully had the full moon over the last few days to assist us in finding the OBS once it pops up to the surface.

This lovely burry image is the spot light as it tracks the OBS. The spotlight is extremely useful once the OBS is within several ship lengths of distance. 


The OBS is starting to get closer now....

Full moon over a perfect OBS recovery.

Hammock in the middle of the night!

You can really get a good feel for spotting the OBS at night in this picture. It is obviously a ship length or two off the starboard bow. 





Terry Cheiffetz







  

Survival Suits to the Rescue!

The ENAM Seismic Experiment - Sat, 04/04/2015 - 16:20
Before the R/V Endeavor embarks on its research voyage the new crew/scientists get to enjoy the challenge of a mock sinking scenario where they have ~2mins to jump out of their shoes and wiggle into these fashionable lobster costumes.  

Dr. Maureen Long and one of the crew members race each other to safety!

Graduate Student intern Colton Lynner is almost unrecognizable once the survival suit is fully on. Only the last troublesome step up zipping up to go before full emersion can take place. 

Graduate Student intern Terry Cheiffetz struggles with the final zipper step as well. 

Dr. Maggie Benoit looks like she wants to really know how to put on the survival gear in case of emergency or... she can't believe she has to participate in these fun shenanigans.


The final product appears to be both fashionable and comfortable. We would interview the model in this photo but he declined to comment....hopefully next years model will have a mouth hole haha!



Living Quarters aboard the Endeavor

The ENAM Seismic Experiment - Sat, 04/04/2015 - 04:03
This is what the state rooms look like for the research scientists on the Endeavor. That lovely extra piece of wood wedged in on the top and bottom bunks help prevent us from falling out of bed in the middle of the night if the ship rolls more than expected.


Using the restroom at sea can be challenging at times...... especially when the seas unexpectedly turn on you while you are trying to take a shower. It is basically an unexplainable balancing act.


This lovely area is where we gather for three amazing meals a day and get an opportunity to socialize with some of the various crew members aboard the ship.

Maggie has about a million movies to choose from. They are an ancient technology called VHS used a long, long time ago....


The science deck is the room where all the magic happens. Everything from running the burn sequences on the OBS's to recalculating the surfacing locations due to variable ocean currents occurs here. The amount of technology on the Endeavor is impressive.



Terry Cheiffetz





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