Ecosystem CO2 Exchange Across Semiarid Southwestern North America: A Synthesis of Multi-Year Flux Site Observations and its Comparison with Estimates from Terrestrial Biome Models and Remote Sensing

Dr. Joel A Biederman, PhD1, Russell L Scott2, Michael Goulden3, Marcy E Litvak4, Thomas Kolb5, Enrico A Yepez6, Jaime Garatuza7, Walter C Oechel8, Daniel J Krofcheck9, Guillermo E Ponce-Campos2, David R Bowling10, Tilden P Meyers11 and Gregory Maurer12, (1)USDA-ARS, Southwest Watershed Research Center, Tucson, AZ, United States, (2)Agricultural Research Service Tucson, Tucson, AZ, United States, (3)University of California Irvine, Department of Earth System Science, Irvine, CA, United States, (4)University of New Mexico, Department of Biology, Albuquerque, United States, (5)Northern Arizona University, School of Forestry, Flagstaff, Arizona, United States, (6)Instituto Tecnologico Sonora, Ciudad Obregon, Sono, Mexico, (7)Instituto Tenológico de Sonora, Departamento de Ciencias de Agua y Medio Ambiente, Cd. Obregón, SO, Mexico, (8)San Diego State University, Department of Biology, San Diego, CA, United States, (9)University of New Mexico Main Campus, Albuquerque, NM, United States, (10)University of Utah, School of Biological Sciences, Salt Lake City, United States, (11)NOAA/ARL/ATDD, Oak Ridge, United States, (12)New Mexico State University, Las Cruces, United States