Results 171 to 180 of about 5,325,765 (204)

The planned Soil Moisture Active Passive (SMAP) mission L-band radar/radiometer instrument

2011 IEEE International Geoscience and Remote Sensing Symposium, 2011
The Soil Moisture Active/Passive (SMAP) mission is a NASA mission identified by the NRC “decadal survey” to measure both soil moisture and freeze/thaw state from space. The mission will use both active radar and passive radiometer instruments at L-Band.
Spencer, Michael, Wheeler, Kevin, Chan, Samuel, Piepmeier, Jeffrey, Hudson, Derek, Medeiros, James   +5 more
openaire   +3 more sources

Assessment of the SMAP Passive Soil Moisture Product

IEEE Transactions on Geoscience and Remote Sensing, 2016
The National Aeronautics and Space Administration (NASA) Soil Moisture Active Passive (SMAP) satellite mission was launched on January 31, 2015. The observatory was developed to provide global mapping of high-resolution soil moisture and freeze-thaw ...
Yann Kerr, Jean-Christophe Calvet, Steven Chan   +2 more
exaly   +3 more sources

Some of the next articles are maybe not open access.

Related searches:

The Soil Moisture Active/Passive Mission (SMAP)

IGARSS 2008 - 2008 IEEE International Geoscience and Remote Sensing Symposium, 2008
The Soil Moisture Active/Passive (SMAP) mission will deliver global views of soil moisture content and its freeze/thaw state that are critical terrestrial water cycle state variables. Polarized measurements obtained with a shared antenna L-band radar and radiometer system will allow accurate estimation of soil moisture at hydrometeorological scale (10 ...
Dara Entekhabi, Eni G. Njoku, Peggy O'Neill, Michael W. Spencer, Thomas J. Jackson, Jared Entin, Eastwood Im, Kent H. Kellogg   +7 more
openaire   +2 more sources

The Soil Moisture Active Passive (SMAP) applications activity

2011 IEEE International Geoscience and Remote Sensing Symposium, 2011
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 mission 1 is under development by NASA and is scheduled for launch late in 2014.
Molly E. Brown, Mary Susan Moran, Vanessa M. Escobar, Dara Entekhabi, Peggy O'Neill, Eni G. Njoku   +5 more
openaire   +2 more sources

The Soil Moisture Active/Passive (SMAP) radar

2008 IEEE Radar Conference, 2008
The soil moisture active/passive (SMAP) mission is a NASA mission identified by the NRC ldquodecadal surveyrdquo to measure both soil moisture and freeze/thaw state from space. The mission will use both active radar and passive radiometer instruments at L-band. In order to achieve a wide swath at sufficiently high resolution for both active and passive
Michael Spencer, Yunjin Kim, Samuel Chan
openaire   +1 more source

Soil Moisture Active/Passive (SMAP) Mission concept

SPIE Proceedings, 2008
Soil Moisture Active/Passive (SMAP) Mission is one of the first satellites being developed by NASA in response to the National Research Council's Decadal Survey. SMAP will make global measurements of the moisture present at Earth's land surface and will distinguish frozen from thawed land surfaces. Direct observations of soil moisture and freeze/thaw
D. Entekhabi, T. J. Jackson, E. Njoku, P. O'Neill, J. Entin   +4 more
openaire   +1 more source

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

2010 IEEE International Geoscience and Remote Sensing Symposium, 2010
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 ...
Steven Tsz K. Chan, Eni G. Njoku, Roy Scott Dunbar   +2 more
openaire   +1 more source

Development and assessment of the SMAP enhanced passive soil moisture product [PDF]

Remote Sensing of Environment, 2018
Launched in January 2015, the National Aeronautics and Space Administration (NASA) Soil Moisture Active Passive (SMAP) observatory was designed to provide frequent global mapping of high-resolution soil moisture and freeze-thaw state every two to three ...
Thomas Jackson, Yann Kerr, Jean-Christophe Calvet   +2 more
exaly   +2 more sources

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

Remote Sensing of Environment, 2018
The NASA Soil Moisture Active Passive (SMAP) mission was launched on January 31st, 2015. The spacecraft was to provide high-resolution (3 km and 9 km) global soil moisture estimates at regular intervals by combining for the first time L-band radiometer ...
Mahta Moghaddam, Thomas Jackson, Aaron Berg   +2 more
exaly   +1 more source

An integrated active-passive soil moisture retrieval algorithm for SMAP for bare surfaces

2012 IEEE International Geoscience and Remote Sensing Symposium, 2012
An integrated soil moisture retrieval algorithm is presented in this work wherein both radar and radiometer measurements are used simultaneously to retrieve surface soil moisture. This method is applied to bare rough surfaces with varying soil moisture and roughness distributions.
Ruzbeh Akbar, Mahta Moghaddam
openaire   +1 more source