Assimilation of global MODIS leaf area index retrievals within a terrestrial biosphere model

Details Assimilation of global MODIS leaf area index retrievals within a terrestrial biosphere model Assimilation of global MODIS leaf area index retrievals within a terrestrial biosphere model

Aug 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007georl..3415402d&link_type=abstract

Geophysical Research Letters, Volume 34, Issue 15, CiteID L15402

Computer Science

Performance

12

Biogeosciences: Carbon Cycling (4806), Global Change: Biogeochemical Cycles, Processes, And Modeling (0412, 0414, 0793, 4805, 4912), Global Change: Earth System Modeling (1225), Global Change: Remote Sensing (1855)

Scientific paper

We investigate the capability of global leaf area index (LAI) retrievals from the Moderate Resolution Imaging Spectroradiometer (MODIS) to be assimilated within a process-oriented biosphere model in order to constrain the distribution of carbon fluxes. This is achieved by implementing a sequential data assimilation procedure within a Dynamic Global Vegetation Model. Assimilating two years (2000-2001) of satellite LAI retrievals advances the onset and the end of the growing season at high northern latitudes, by 20 and 40 days respectively. This reduces the growing season length and leads to lower estimates of global annual gross primary productivity (GPP) and net primary productivity (NPP), respectively by 5 and 3% with large variations from one vegetation biome to another. In situ measurements of monthly GPP from eddy flux towers provide an independent check on the performance of the assimilation procedure, resulting in an improvement of 25% in terms of root mean square error between modelled and observed GPP over the model grid points where the flux towers are located.

Affiliated with

Also associated with

No associations

Rating

Assimilation of global MODIS leaf area index retrievals within a terrestrial biosphere model does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Assimilation of global MODIS leaf area index retrievals within a terrestrial biosphere model, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Assimilation of global MODIS leaf area index retrievals within a terrestrial biosphere model will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-973775