Decrease of river runoff in the upper waters of the Eurasian Basin, Arctic Ocean, between 1991 and 1996: Evidence from delta O-18 data

Publication Type: 
Year of Publication: 
2002
Journal Title: 
Geophysical Research Letters
Journal Date: 
May 1
Volume: 
29
Issue: 
9
Pages: 
-
ISBN Number: 
0094-8276
Accession Number: 
ISI:000178888000073
Abstract: 

[1] Measurements of the (H2O)-O-18/(H2O)-O-16 ratio of water from two sections crossing the Eurasian Basin in 1991 and 1996 show that the observed decrease in the freshwater contained in the upper waters of the Eurasian Basin during the 1990s is due to decrease in meteoric water (mainly river runoff). The decrease in meteoric water inventories between 1991 and 1996 calculated from balances of mass, salinity, delta(18)O, and PO4* is about 3 meters and accounts for basically the entire freshwater change inferred from salinity budgets. Climatological data are used to ensure that the two sections can be considered to belong to the same hydrographic regime. The data also suggest that in 96 the formation of sea ice from the upper waters in the Amundsen Basin was lower by about 1 meter (3 m in 1996 compared to 4 m in 1991).

Notes: 

609DHTimes Cited:7Cited References Count:29

DOI: 
Doi 10.1029/2001gl013135