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Global climatology and variability of potential new production estimated from remote sensing of sea-surface temperature

Author:
Wilkerson, Frances P.
Published:
Apr 30, 1995.
Physical Description:
1 electronic document
Additional Creators:
Dugdale, Richard C.
Online Version

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Summary:
During this project we have collected numerous shipboard data-bases of oceanic nitrate and silicate versus temperature for both equatorial and coastal upwelling regions. These cruises all have accompanying N-15 measurements of new production. The inverse relationships between nutrients and temperatures have been determined and are being used to obtain surface nutrient fields from sea surface temperatures measured remotely by satellite borne sensors- i.e. AVHRR data from NOAA satellites contained in the MCSST data set for the world ocean provided by the University of Miami. The images and data derived from space in this way show the strong seasonal fluctuations and interannual el Nino fluctuations of the nitrate field. the nitrate data has been used to make estimates of new production for the equatorial pacific which are compared with shipboard measurements when available. The importance of silicate as a nutrient driving new production and the ratio of nitrate to silicate has been discovered to be crucial to better understand the causes of new production variability, so we have added these parameters to our study and have begun to make estimates of these for the equatorial Pacific, derived from the weekly averaged sea surface temperatures (SSTs).
Other Subject(s):
Collection:
NASA Technical Reports Server (NTRS) Collection.
Note:
Document ID: 19950025560.
Accession ID: 95N31981.
NASA-CR-198840.
NAS 1.26:198840.
NRA-91-OSSA-07.
Terms of Use and Reproduction:
No Copyright.
View MARC record | catkey: 15653071