Results 81 to 90 of about 5,325,765 (204)

National Oceanic and Atmospheric Administration Soil Moisture Operational Product System: An overview and data assimilation applications

open access: yesVadose Zone Journal, Volume 25, Issue 4, July/August 2026.
Abstract National Oceanic and Atmospheric Administration–National Environmental Satellite, Data, and Information Service (NESDIS) developed the Soil Moisture Operational Product System (SMOPS) to serve as a one‐stop shop for all available microwave satellite soil moisture observations.
Jifu Yin   +5 more
wiley   +1 more source

NASA Soil Moisture Active Passive (SMAP) Mission Formulation [PDF]

open access: yes, 2011
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 [1].
ONeill, Peggy   +4 more
core  

Soil Moisture Active/Passive (SMAP) Level 4 Carbon (L4C) Nature Run version 7.2

open access: yes, 2020
The Soil Moisture Active/ Passive (SMAP) Level 4 Carbon (L4C) product is a daily, global, terrestrial carbon budget driven, in part, by soil moisture estimates from the Level 4 Soil Moisture (L4SM) product and, in turn, on brightness temperature ...
K. Arthur Endsley   +2 more
core   +1 more source

Toward a structured workflow to harmonize soil water content products: A comparative study across different methods

open access: yesVadose Zone Journal, Volume 25, Issue 4, July/August 2026.
Abstract This study introduces a structured, multi‐step workflow for harmonizing diverse soil water content (SWC) datasets to improve their meaningful comparability while preserving their intrinsic characteristics. The workflow addresses four components: unit, temporal, vertical, and lateral spatial harmonization, and is applied to point‐scale (PS ...
Sadra Emamalizadeh   +5 more
wiley   +1 more source

Estimation of Indonesian Peat Forest Carbon Emissions Based on Soil Moisture Active Passive (SMAP) Satellite Image [PDF]

open access: yes, 2019
Calculation of carbon emission in tropical peatland forest still unsolved problem. In this paper, we propose a method to calculate carbon emission by using Soil Moisture Active Passive (SMAP) satellite.
Awaluddin, A   +3 more
core   +1 more source

Do data from the RISMA soil monitoring network support agricultural modeling requirements?

open access: yesVadose Zone Journal, Volume 25, Issue 4, July/August 2026.
Abstract The Real‐Time In‐Situ Soil Monitoring for Agriculture (RISMA) network provides soil water and agri‐environmental data for conceptualization, calibration, and validation of remote sensing and modeling products for Canadian agriculture at 32 stations in seven watersheds in Saskatchewan, Manitoba, and Ontario.
Kayla R. Moore   +9 more
wiley   +1 more source

Rapid Flood Progress Monitoring in Cropland with NASA SMAP

open access: yesRemote Sensing, 2019
Research in different agricultural sectors, including in crop loss estimation during flood and yield estimation, substantially rely on inundation information. Spaceborne remote sensing has widely been used in the mapping and monitoring of floods. However,
Md. Shahinoor Rahman   +5 more
doaj   +1 more source

Streamflow Calibration in Ungauged Basins Using SWOT Discharge and SMAP Surface Soil Moisture Products

open access: yesWater Resources Research, Volume 62, Issue 7, July 2026.
Abstract Significant advances have been made in using terrestrial remote sensing to reduce random errors in land surface models (LSMs). However, less progress has been made in dealing with systematic LSM errors that are instead correlated with true system states.
Wade T. Crow   +3 more
wiley   +1 more source

Quasi-SMAP: A SMAP-Referenced Long-Term Daily Surface Soil Moisture Record From 1981 to 2022

open access: yesIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
Long-term daily surface soil moisture records are important for hydrological, ecological, and drought-related applications. However, existing satellite soil moisture products still face a tradeoff among temporal length, daily spatial continuity, and ...
Yunjia Wang, Hao Sun, Jinhua Gao
doaj   +1 more source

The SMAP and Copernicus Sentinel 1A/B Microwave Active-Passive High Resolution Surface Soil Moisture Product and its Applications [PDF]

open access: yes, 2019
SMAP project released a new enhanced high-resolution (3km and 1 km) soil moisture active-passive product. This product is obtained by combining the SMAP radiometer data and the Sentinel-1A and -1B Synthetic Aperture Radar (SAR) data.
O'neill, P. E.   +8 more
core  

Home - About - Disclaimer - Privacy