Nitrate and amonium uptake measurements along the ice edge of the East Greenland Sea during summer of 1987 and 1988

Conference · Tue Jan 09 04:00:00 EST 1990 · EOS, Transactions, American Geophysical Union; (United States)

OSTI ID:6666339

Keene, N K ^[1]

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1. Univ. of Tennessee, Knoxville (United States)

The Greenland Sea is a key component of the advective-convective system that links the Arctic Ocean and the North Atlantic deep water mass. North Atlantic deep water is becoming recognized as as sink for carbon dioxide and therefore important in global carbon cycling. The amount of new' production available for the sequestering of CO[sub 2] and for export can be estimated using ammonium and nitrate uptake rates. Data for ammonium and nitrate uptake rates were collected through the euphotic zone along the Polar Front in the East Greenland Sea during June of 1987 and 1988. There was substantial spatial variability between transects, and some stations had low or undectable levels of ambient nitrate during both years. Mean rates of specific ammonium uptake, throughout the eupthotic rates. Ammonium specific uptake rates were greater at each depth in 1987 than in 1988. The difference between nitrate mean specific uptake between 1987 and 1988 was not significant (P < 0.05). Mean surface f-ratios calculated for this area were .33 for 1987 and production in either of these years.

• OSTI ID: 6666339
• Report Number(s): CONF-9002174--
• Conference Information: Journal Name: EOS, Transactions, American Geophysical Union; (United States) Journal Volume: 71:2
• Country of Publication: United States
• Language: English

Related Subjects

54 ENVIRONMENTAL SCIENCES
540120* -- Environment
Atmospheric-- Chemicals Monitoring &amp; Transport-- (1990-)
AMMONIUM COMPOUNDS
ARCTIC OCEAN
CARBON COMPOUNDS
CARBON CYCLE
CARBON DIOXIDE
CARBON OXIDES
CHALCOGENIDES
ECOLOGICAL CONCENTRATION
GLOBAL ASPECTS
GREENLAND
ICE
MONITORING
NITRATES
NITROGEN COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
SEAS
SURFACE WATERS
UPTAKE