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The Soil Moisture Active/Passive Mission (SMAP)

Dara Entekhabi, Eni Njoku, Peggy O'Neill, Michael Spencer, Tom Jackson, Jared Entin, Eastwood Im, Kent Kellogg
2008 IGARSS 2008 - 2008 IEEE International Geoscience and Remote Sensing Symposium  
prediction SMAP is the first L-band combined active/passive mission providing both high-resolution and frequent revisit observations • L-band radar provides high resolution (1-3 km) to accurately measure  ...  The target launch date for SMAP is March 2013. • Mission Ops duration: 3 years SMAP measurements of soil moisture and freeze-thaw will provide an integrated measure of critical controls on the rate of  ... 
doi:10.1109/igarss.2008.4779267 dblp:conf/igarss/EntekhabiNOSJEIK08 fatcat:vx263m4wknajjikeyvqyb5yuia

The Soil Moisture Active Passive (SMAP) Mission

Dara Entekhabi, Eni G. Njoku, Peggy E. O'Neill, Kent H. Kellogg, Wade T. Crow, Wendy N. Edelstein, Jared K. Entin, Shawn D. Goodman, Thomas J. Jackson, Joel Johnson, John Kimball, Jeffrey R. Piepmeier (+11 others)
2010 Proceedings of the IEEE  
The Soil Moisture Active and Passive (SMAP) Mission is one of the first Earth observation satellites being developed by NASA in response to the National Research Council's Decadal Survey.  ...  The SMAP mission concept would utilize an L-band radar and radiometer.  ...  R E V I E W C O P Y The Soil Moisture Active and Passive (SMAP) Mission R E V I E W C O P Y R E V I E W C O P Y ABSTRACT: The Soil Moisture Active and Passive (SMAP) Mission is one of the first Earth observation  ... 
doi:10.1109/jproc.2010.2043918 fatcat:robg6kw5ozffnfr5qivjbgvjom

The NASA Soil Moisture Active Passive (SMAP) mission: Overview

Peggy O'Neill, Dara Entekhabi, Eni Njoku, Kent Kellogg
2010 2010 IEEE International Geoscience and Remote Sensing Symposium  
The Soil Moisture Active Passive (SMAP) mission is one of the first Earth observation satellites being developed by NASA in response to the National Research Council's Decadal Survey [1] .  ...  The combined active/passive microwave soil moisture product will have a spatial resolution of 10 km and a mean latency of 24 hours.  ...  Based on the NRC recommendations and on its own evaluation of technical readiness, NASA selected the Soil Moisture Active Passive (SMAP) mission to be the first of the Decadal Survey missions to be developed  ... 
doi:10.1109/igarss.2010.5652291 dblp:conf/igarss/ONeillENK10 fatcat:azquozvhubezba5vboglmekuci

The NASA Soil Moisture Active Passive (SMAP) mission formulation

Dara Entekhabi, Eni Njoku, Peggy O'Neill, Kent Kellogg, Jared Entin
2011 2011 IEEE International Geoscience and Remote Sensing Symposium  
The Soil Moisture Active Passive (SMAP) Mission is one of the first Earth observation satellites being formulated by NASA in response to the 2007 National Research Council's Earth Science Decadal Survey  ...  SMAP's measurement objectives are highresolution global measurements of near-surface soil moisture and its freeze-thaw state.  ...  The soil moisture control of these fluxes is a key factor in the performance of atmospheric models used for weather forecasts and climate projections.  ... 
doi:10.1109/igarss.2011.6049669 dblp:conf/igarss/EntekhabiNOKE11 fatcat:ruo5orcxsbfirn63esgskqzuoa

The Soil Moisture Active Passive (SMAP) applications activity

Molly E Brown, Susan Moran, Vanessa Escobar, Dara Entekhabi, Peggy O'Neill, Eni Njoku
2011 2011 IEEE International Geoscience and Remote Sensing Symposium  
The Soil Moisture Active Passive (SMAP) mission is one of the first-tier satellite missions recommended by the U.S. National Research Council Committee on Earth Science and Applications from Space.  ...  The SMAP measurements will allow global and high-resolution mapping of soil moisture and its freeze/thaw state at resolutions from 3-40 km.  ...  Eni Njoku and others at NASA Jet Propulsion Laboratory working on the SMAP team.  ... 
doi:10.1109/igarss.2011.6049670 dblp:conf/igarss/BrownMEEON11 fatcat:euef5c6dwzbbpilms55vck3kxq

The Soil Moisture Active Passive Experiments (SMAPEx): Toward Soil Moisture Retrieval From the SMAP Mission

Rocco Panciera, Jeffrey P. Walker, Thomas J. Jackson, Douglas A. Gray, Mihai A. Tanase, Dongryeol Ryu, Alessandra Monerris, Heath Yardley, Christoph Rudiger, Xiaoling Wu, Ying Gao, Jorg M. Hacker
2014 IEEE Transactions on Geoscience and Remote Sensing  
NASA's Soil Moisture Active Passive (SMAP) mission will carry the first combined spaceborne L-band radiometer and Synthetic Aperture Radar (SAR) system with the objective of mapping near-surface soil moisture  ...  The Soil Moisture Active Passive Experiments (SMAPEx) are a series of three airborne field experiments designed to provide prototype SMAP data for the development and validation of soil moisture retrieval  ...  He is contributing to soil moisture satellite missions at NASA, ESA, and JAXA as a Science Definition Team member for the Soil Moisture Active Passive (SMAP) mission and Cal/val Team member for the Soil  ... 
doi:10.1109/tgrs.2013.2241774 fatcat:pvutrgfzmnevbeoxbijwcur4em

Fostering applications opportunities for the NASA Soil Moisture Active Passive (SMAP) Mission

M. Susan Moran, Peggy E. O'Neill, Dara Entekhabi, Eni G. Njoku, Kent H. Kellogg
2010 2010 IEEE International Geoscience and Remote Sensing Symposium  
The NASA Soil Moisture Active Passive (SMAP) Mission will provide global observations of soil moisture and freeze/thaw state from space.  ...  We outline how priority applications contributed to the SMAP mission measurement requirements and how the SMAP mission plans to foster applications and applied science.  ...  INTRODUCTION The Soil Moisture Active Passive (SMAP) Mission is one of the first Earth observation satellites being developed by NASA in response to the National Research Council's (NRC's) Decadal Survey  ... 
doi:10.1109/igarss.2010.5652647 dblp:conf/igarss/MoranOENK10 fatcat:acub4bakgnej3eqcf2tis3472u

Monitoring surface soil moisture and freeze-thaw state with the high-resolution radar of the Soil Moisture Active/Passive (SMAP) mission

Seungbum Kim, Jakob van Zyl, Kyle McDonald, Eni Njoku
2010 2010 IEEE Radar Conference  
An approach is described for retrieving surface soil moisture and freeze/thaw state using 3-km resolution L-band radar data of the planned Soil Moisture Active and Passive (SMAP) mission.  ...  The estimated soil moisture retrieval accuracy is better than 0.06 cm 3 /cm 3 for vegetation water content less than 1.2 kg/m 2 and soil moisture in the range of 0 to 0.3 cm 3 /cm 3 .  ...  ACKNOWLEDGMENT The research described here was carried out in part at the Jet Propulsion Laboratory, California Institute of Technology, under contract with the National Aeronautics and Space Administration  ... 
doi:10.1109/radar.2010.5494523 fatcat:e6ffw6fxbjbidd7txszq5wcap4

NASA's Soil Moisture Active Passive (SMAP) Mission and Opportunities for Applications Users

Molly E. Brown, Vanessa Escobar, Susan Moran, Dara Entekhabi, Peggy E. O'Neill, Eni G. Njoku, Brad Doorn, Jared K. Entin
2013 Bulletin of The American Meteorological Society - (BAMS)  
This research was carried out in part at the Jet Propulsion Laboratory, California Institute of Technology, under contract with NASA.  ...  To address this need, NASA has initiated the Soil Moisture Active Passive (SMAP) satellite mission, as recommended by the National Research Council in their 2007 report, "Earth Science and Applications  ...  Once calibrated, the SMAP mission will deliver estimates of soil moisture in the top 5 cm of soil with an accuracy of 0.04 cm 3 /cm 3 volumetric soil moisture, at 10-km resolution, with 3-day average intervals  ... 
doi:10.1175/bams-d-11-00049.1 fatcat:ghislmbiifezdgi5etselzz7w4

Forward simulations of passive microwave observations for the soil Moisture Active Passive (SMAP) mission

Steven Chan, Eni Njoku, Scott Dunbar
2010 2010 IEEE International Geoscience and Remote Sensing Symposium  
In this paper, we describe our approach to simulate realistic L-band brightness temperatures to be measured by the Soil Moisture Active Passive (SMAP) mission.  ...  These realistic simulated measurements are crucial because they provide a quantitative basis by which we develop and improve our pre-launch retrieval algorithms for soil moisture at 9-km and 36-km spatial  ...  ACKNOWLEDGEMENTS The work described in this paper was performed by the Jet Propulsion Laboratory, California Institute of Technology, under a contract with the National Aeronautics and Space Administration  ... 
doi:10.1109/igarss.2010.5650752 dblp:conf/igarss/ChanND10 fatcat:yjuvabyr5rgcpfigllxwcqdnja

Estimating Regional Scale Hydroclimatic Risk Conditions from the Soil Moisture Active-Passive (SMAP) Satellite

Catherine Champagne, Yinsuo Zhang, Patrick Cherneski, Trevor Hadwen
2018 Geosciences  
Satellite soil moisture data from the Soil Moisture Active/Passive (SMAP) mission was used to evaluate the sensitivity to hydroclimatic risk events in Canada.  ...  The SMAP soil moisture data sets in general capture relative moisture trends with the best estimates from the passive-only derived soil moisture and little difference between the data at different spatial  ...  Acknowledgments: The authors wish to thank Heather McNairn and Jarrett Powers from Agriculture and Agri-Food Canada for providing the RISMA in situ soil moisture data, and Daniel Itenfisu and Ralph Wright  ... 
doi:10.3390/geosciences8040127 fatcat:ckphnrochzaatme55b7v7xho5i

The SMAP mission combined active-passive soil moisture product at 9 km and 3 km spatial resolutions

Narendra N. Das, Dara Entekhabi, R. Scott Dunbar, Andreas Colliander, Fan Chen, Wade Crow, Thomas J. Jackson, Aaron Berg, David D. Bosch, Todd Caldwell, Michael H. Cosh, Chandra H. Collins (+10 others)
2018 Remote Sensing of Environment  
A B S T R A C T The NASA Soil Moisture Active Passive (SMAP) mission was launched on January 31st, 2015.  ...  However, before this occurred the mission was able to collect and process 2.5 months of the SMAP high-resolution active-passive soil moisture data (L2SMAP) that coincided with the Northern Hemisphere's  ...  Seungbum Kim from JPL for their constructive comments and help in developing some of the modules for the SMAP active-passive Science Software.  ... 
doi:10.1016/j.rse.2018.04.011 fatcat:mlncjbo4xffynirvjmfqiwe7qa

Radio-frequency interference (RFI) mitigation for the soil moisture active/passive (SMAP) radiometer

Damon Bradley, Cliff Brambora, Mark Englin Wong, Lynn Miles, David Durachka, Brian Farmer, Priscilla Mohammed, Jeff Piepmier, Jim Medeiros, Neil Martin, Rafael Garcia
2010 2010 IEEE International Geoscience and Remote Sensing Symposium  
The presence of anthropogenic RFI is expected to adversely impact soil moisture measurement by NASA's Soil Moisture Active Passive mission.  ...  The digital signal processing approach and preliminary design for detecting and mitigating this RFI is presented in this paper. This approach is largely based upon the work of Johnson [1] and Ruf [2].  ...  The launch of the European Space Agency's Soil Moisture Ocean Salinity (SMOS) mission [4] begins a new era of Lband remote sensing from space, which has been long desired for remote sensing of soil moisture  ... 
doi:10.1109/igarss.2010.5652482 dblp:conf/igarss/BradleyBWMDFMPMMG10 fatcat:ytc2dfjxi5e6ppkjg36z5ho4wm

Effect of Land-Cover Type on the SMAP Active/Passive Soil Moisture Downscaling Algorithm Performance

Xiaoling Wu, Jeffrey P. Walker, Christoph Rudiger, Rocco Panciera
2015 IEEE Geoscience and Remote Sensing Letters  
Index Terms-Backscatter, brightness temperature, downscaling algorithm, Soil Moisture Active Passive (SMAP), Soil Moisture Active Passive Experiment (SMAPEx).  ...  A brightness temperature (Tb) downscaling algorithm based on the synergy between active and passive microwave observations is tested using airborne data that simulate the Soil Moisture Active Passive (  ...  The authors acknowledge the collaboration of scientists from throughout Australia and around the world, which provided significant contribution to the campaign's design and execution.  ... 
doi:10.1109/lgrs.2014.2364049 fatcat:rios5smt4vejxlshiurereddle

Validation of Soil Moisture Data Products from the NASA SMAP Mission

Andreas Colliander, Rolf Reichle, Wade Crow, Michael H. Cosh, Fan Chen, Steven K. Chan, Narendra Narayan Das, Rajat Bindlish, Mario J Chaubell, Seungbum Kim, Qing Liu, Peggy E Oneill (+36 others)
2021 IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing  
The National Aeronautics and Space Administration (NASA) Soil Moisture Active Passive (SMAP) mission has been validating its soil moisture (SM) products since the start of data production on March 31,  ...  Prior to launch, the mission defined a set of criteria for core validation sites (CVS) that enable the testing of the key mission SM accuracy requirement (unbiased root-mean-square error <0.04 m 3 /m 3  ...  INTRODUCTION The National Aeronautics and Space Administration (NASA) Soil Moisture Active Passive (SMAP) mission has produced global soil moisture (SM) measurements since March 2015 [1] .  ... 
doi:10.1109/jstars.2021.3124743 fatcat:jlp43jv4fjfnrntmaru7bwsmji
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