Comment on “Drought-Induced Reduction in Global Terrestrial Net Primary Production from 2000 Through 2009”

Arindam Samanta, Atmospheric and Environmental Research Inc., asamanta@aer.com (Presenter)
Marcos H. Costa, Universidade Federal de Vicosa, mhcosta@ufv.br
Edson L. Nunes, Universidade Federal de Vicosa, elnunes@vicosa.ufv.br
Simone A. Vieira, State University of Campinas–UNICAMP, sivieira@unicamp.br
Liang Xu, Boston University, bireme@gmail.com
Ranga Babu Myneni, Boston University, rmyneni@bu.edu

Zhao and Running (Reports, 20 August 2010, p. 940) reported a reduction in global terrestrial net primary production (NPP) from 2000 through 2009. We argue that the small trends, regional patterns, and interannual variations that they describe are artifacts of their NPP model. Satellite observations of vegetation activity show no statistically significant changes in more than 85% of the vegetated lands south of 70°N during the same 2000 to 2009 period.

Presentation Type:  Poster

Session:  Global Change Impact & Vulnerability   (Tue 11:30 AM)

Associated Project(s): 

• Myneni, Ranga: Global Products of Leaf Area Index and Fraction Vegetation Absorbed PAR from the Terra/Aqua MODIS and NPP VIIRS Sensors: Algorithm Refinement and Cal/Val for ESDR Proposal ...details

Poster Location ID: 281