| Volumes and Issues Contents of Issue 6 |
www.biogeosciences.net/6/937/2009/
doi:10.5194/bg-6-937-2009
© Author(s) 2009. This work is distributed
under the Creative Commons Attribution 3.0 License.
Terrestrial carbon sinks in the Brazilian Amazon and Cerrado region predicted from MODIS satellite data and ecosystem modeling
1NASA Ames Research Center, Moffett Field, CA, USA
2California State University Monterey Bay, Seaside, CA, USA
3University of Arizona, Tucson, AZ, USA
4Universidade de Brasilia, Brasilia, Brazil
5Universidade Federal de Goias, Goiânia, Goiás, Brazil
6EMBRAPA Amazonia Oriental, Belém, Pará, Brazil
7US Environmental Protection Agency, Athens, GA, USA
Abstract. A simulation model based on satellite observations of monthly vegetation cover from the Moderate Resolution Imaging Spectroradiometer (MODIS) was used to estimate monthly carbon fluxes in terrestrial ecosystems of Brazilian Amazon and Cerrado regions over the period 2000–2004. Net ecosystem production (NEP) flux for atmospheric CO2 in the region for these years was estimated. Consistently high carbon sink fluxes in terrestrial ecosystems on a yearly basis were found in the western portions of the states of Acre and Rondônia and the northern portions of the state of Pará. These areas were not significantly impacted by the 2002–2003 El Niño event in terms of net annual carbon gains. Areas of the region that show periodically high carbon source fluxes from terrestrial ecosystems to the atmosphere on yearly basis were found throughout the state of Maranhão and the southern portions of the state of Amazonas. As demonstrated though tower site comparisons, NEP modeled with monthly MODIS Enhanced Vegetation Index (EVI) inputs closely resembles the measured seasonal carbon fluxes at the LBA Tapajos tower site. Modeling results suggest that the capacity for use of MODIS Enhanced Vegetation Index (EVI) data to predict seasonal uptake rates of CO2 in Amazon forests and Cerrado woodlands is strong.
Final Revised Paper (PDF, 4135 KB) Discussion Paper (BGD)
Citation: Potter, C., Klooster, S., Huete, A., Genovese, V., Bustamante, M., Guimaraes Ferreira, L., R. C. de Oliveira Jr., and Zepp, R.: Terrestrial carbon sinks in the Brazilian Amazon and Cerrado region predicted from MODIS satellite data and ecosystem modeling, Biogeosciences, 6, 937-945, doi:10.5194/bg-6-937-2009, 2009. Bibtex EndNote Reference Manager XML
Search BG
News
- Impact factor for 2010 confirms the prominent position of Biogeosciences
- Overview of Scheduled Special Issues
- Three times in 2010, Biogeosciences has achieved the highest percent increase in total citations among journals in the field of Environment & Ecology in Essential Science IndicatorsSM from Thomson Reuters. For more information see: http://sciencewatch.com.
- EGU Position Statement on Discussion Papers