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Extending the record of photosynthetic activity in the eastern United States into the presatellite period using surface diurnal temperature
 

Summary: Extending the record of photosynthetic activity in the eastern United
States into the presatellite period using surface diurnal temperature
range
Ce´line Bonfils,1
Alon Angert,1
Cara C. Henning,1
Se´bastien Biraud,1
Scott C. Doney,2
and Inez Fung1
Received 30 January 2005; revised 7 March 2005; accepted 17 March 2005; published 26 April 2005.
[1] In this study, we demonstrate that mid-latitude surface
measurements of diurnal temperature range (DTR) can be
used to reconstruct decadal variability of regional-scale
terrestrial photosynthetic activity 1) during and prior to
the period with satellite retrievals of land greenness and
2) without the need for moisture data. While the two relative
maxima present in the seasonal evolution of DTR can
determine the beginning and the end of the growing season,
the summertime average DTR can be used as a proxy of
summertime terrestrial photosynthesis. In a case study in

  

Source: Alon, Angert - Institute of Earth Sciences, Hebrew University of Jerusalem

 

Collections: Geosciences