TY - GEN
T1 - The SMAP level 4 carbon product for monitoring terrestrial ecosystem-atmosphere CO2 exchange
AU - Jones, L. A.
AU - Kimball, J. S.
AU - Madani, N.
AU - Reichle, R. H.
AU - Glassy, J.
AU - Ardizzone, J.
N1 - Publisher Copyright:
© 2016 IEEE.
PY - 2016/11/1
Y1 - 2016/11/1
N2 - The NASA Soil Moisture Active Passive (SMAP) mission Level 4 Carbon (L4-C) product provides model estimates of Net Ecosystem CO2 exchange (NEE) incorporating SMAP soil moisture information as a primary driver. The L4-C product provides NEE, computed as total respiration less gross photosynthesis, at a daily time step and approximate 14-day latency posted to a 9-km global grid summarized by plant functional type. The L4-C product includes component carbon fluxes, surface soil organic carbon stocks, underlying environmental constraints, and detailed uncertainty metrics. The L4-C model is driven by the SMAP Level 4 Soil Moisture (L4-SM) data assimilation product, with additional inputs from the Goddard Earth Observing System, Version 5 (GEOS-5) weather analysis and Moderate Resolution Imaging Spectroradiometer (MODIS) satellite data. The L4-C data record extends from March 2015 to present with ongoing production. Initial comparisons against global CO2 eddy flux tower measurements, satellite Solar Induced Canopy Florescence (SIF) and other independent observation benchmarks show favorable L4-C performance and accuracy, capturing the dynamic biosphere response to recent weather anomalies and demonstrating the value of SMAP observations for monitoring of global terrestrial water and carbon cycle linkages.
AB - The NASA Soil Moisture Active Passive (SMAP) mission Level 4 Carbon (L4-C) product provides model estimates of Net Ecosystem CO2 exchange (NEE) incorporating SMAP soil moisture information as a primary driver. The L4-C product provides NEE, computed as total respiration less gross photosynthesis, at a daily time step and approximate 14-day latency posted to a 9-km global grid summarized by plant functional type. The L4-C product includes component carbon fluxes, surface soil organic carbon stocks, underlying environmental constraints, and detailed uncertainty metrics. The L4-C model is driven by the SMAP Level 4 Soil Moisture (L4-SM) data assimilation product, with additional inputs from the Goddard Earth Observing System, Version 5 (GEOS-5) weather analysis and Moderate Resolution Imaging Spectroradiometer (MODIS) satellite data. The L4-C data record extends from March 2015 to present with ongoing production. Initial comparisons against global CO2 eddy flux tower measurements, satellite Solar Induced Canopy Florescence (SIF) and other independent observation benchmarks show favorable L4-C performance and accuracy, capturing the dynamic biosphere response to recent weather anomalies and demonstrating the value of SMAP observations for monitoring of global terrestrial water and carbon cycle linkages.
KW - SMAP
KW - Soil moisture
KW - carbon cycle
UR - http://www.scopus.com/inward/record.url?scp=85007500571&partnerID=8YFLogxK
U2 - 10.1109/IGARSS.2016.7729027
DO - 10.1109/IGARSS.2016.7729027
M3 - Conference contribution
AN - SCOPUS:85007500571
T3 - International Geoscience and Remote Sensing Symposium (IGARSS)
SP - 139
EP - 142
BT - 2016 IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2016 - Proceedings
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 36th IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2016
Y2 - 10 July 2016 through 15 July 2016
ER -
