Results 101 to 110 of about 4,460 (223)

A seamless global daily soil moisture dataset (2010–2015) harmonized from SMOS observations and SMAP-era assimilation modeling

International Journal of Digital Earth
The consecutive Soil Moisture and Ocean Salinity (SMOS) and Soil Moisture Active Passive (SMAP) satellite missions have enhanced global L-band soil moisture monitoring.
Xiaoyi Wang, Haishen Lü, Sidong Zeng, Gerald A Corzo Perez, Qiqi Gou, Linhan Yang, Yongyue Ji, Yiling Yao, Jianbin Su   +8 more
doaj   +1 more source

SMAP Data Assimilation at the GMAO [PDF]

The NASA Soil Moisture Active Passive (SMAP) mission has been providing L-band (1.4 GHz) passive microwave brightness temperature (Tb) observations since April 2015. These observations are sensitive to surface(0-5 cm) soil moisture.
Ardizzone, J., De Lannoy, G., Liu, Q., Reichle, R.   +3 more
core   +1 more source

Quantifying the potential of using Soil Moisture Active Passive (SMAP) soil moisture variability to predict subsurface water dynamics

Hydrology and Earth System Sciences
Abstract. Advances in satellite Earth observation have opened up new opportunities for global monitoring of soil moisture (SM) at fine to medium resolution, but satellite remote sensing can only measure the near-surface soil moisture (SSM). As such, it is critically important to examine the potential of satellite SSM measurements to derive the water ...
A. K. Nayak, X. Xu, X. Xu, S. K. Frey, S. K. Frey, O. Khader, O. Khader, A. R. Erler, D. R. Lapen, H. A. J. Russell, E. A. Sudicky, E. A. Sudicky   +11 more
openaire   +4 more sources

Soil Moisture Active Passive (SMAP) Mission Level 4 Carbon (L4_C) Product Specification Document [PDF]

This is the Product Specification Document (PSD) for Level 4 Surface and Root Zone Soil Moisture (L4_SM) data for the Science Data System (SDS) of the Soil Moisture Active Passive (SMAP) project.
Ardizzone, Joseph V., Glassy, Joe, Jones, Lucas, Kim, Gi-Kong, Kimball, John S., Lucchesi, Robert A., Reichle, Rolf H., Smith, Edmond B., Weiss, Barry H.   +8 more
core   +1 more source

Localization of L-Band RFI Sources from SMAP Data [PDF]

RFI (Radio-Frequency Interference) in the 1400-1427 MHz band degrades the quality of measurements made by satellite missions such as SMAP (Soil Moisture Active/Passive), Aquarius and SMOS (Soil Moisture and Ocean Salinity).
de Matthaeis, Paolo, Le Vine, David M., Soldo, Yan   +2 more
core   +1 more source

A Data-Driven Approach for Daily Real-Time Estimates and Forecasts of Near-Surface Soil Moisture [PDF]

NASAs Soil Moisture Active Passive (SMAP) mission provides global surface soil moisture retrievals with a revisit time of 2-3 days and a latency of 24 hours.
Koster, Randal D., Mahanama, Sarith P. P., Reichle, Rolf H.   +2 more
core   +1 more source

Soil Moisture Active Passive (SMAP) Mission Level 4 Surface and Root Zone Soil Moisture (L4_SM) Product Specification Document [PDF]

This is the Product Specification Document (PSD) for Level 4 Surface and Root Zone Soil Moisture (L4_SM) data for the Science Data System (SDS) of the Soil Moisture Active Passive (SMAP) project.
Ardizzone, Joseph V., Kim, Gi-Kong, Lucchesi, Robert A., Reichle, Rolf H., Smith, Edmond B., Weiss, Barry H.   +5 more
core   +4 more sources

Soil Moisture Data Assimilation in the NASA Land Information System for Local Modeling Applications and Improved Situational Awareness [PDF]

As part of the NASA Soil Moisture Active Passive (SMAP) Early Adopter (EA) program, the NASA Shortterm Prediction Research and Transition (SPoRT) Center has implemented a data assimilation (DA) routine into the NASA Land Information System (LIS) for soil
Blakenship, Clay B., Case, Jonathan L., Zavodsky, Bradley T.   +2 more
core   +1 more source

Soil Moisture Active/Passive (SMAP) Forward Brightness Temperature Simulator [PDF]

, 2012
The SMAP is one of four first-tier missions recommended by the US National Research Council's Committee on Earth Science and Applications from Space (Earth Science and Applications from Space: National Imperatives for the Next Decade and Beyond, Space ...
Kim, Edward, Peipmeier, Jeffrey, Peng, Jinzheng   +2 more
core   +1 more source

SMOS/SMAP Synergy for SMAP Level 2 Soil Moisture Algorithm Evaluation [PDF]

Soil Moisture Active Passive (SMAP) satellite has been proposed to provide global measurements of soil moisture and land freeze/thaw state at 10 km and 3 km resolutions, respectively.
Bindlish, Rajat, Chan, Steven, Colliander, Andreas, Cosh, Michael, Jackson, Thomas J., Kerr, Yann, Njoku, Eni, O'Neill, Peggy, Zhao, Tianjie   +8 more
core   +1 more source