Validation Data

The tables below provide access to data sets collected during the Cloud and Land Surface Interaction Campaign 2007 (CLASIC07), Soil Moisture Active Passive Validation Experiment 2008 (SMAPVEX08), and Soil Moisture Active Passive Validation Experiment 2012 (SMAPVEX12), as well as other soil moisture field campaigns.

SMAP Validation Data

Title Spatial Coverage Temporal Coverage Spatial Resolution Temporal Resolution Parameter(s)

CLASIC07 In Situ Soil Moisture Data

Dataset Summary

This data set is comprised of several parameters from in situ measurements collected for the Cloud and Land Surface Interaction Campaign 2007 (CLASIC07).

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N: 35.21, S: 34.91, E: -97.95, W: -98.59 2007/06/07 to 2007/07/07 0.8 km 1 day to 2 day Electrical Conductivity, Soil Temperature, Soil Bulk Density, Soil Moisture/Water Content

CLASIC07 In Situ Vegetation Data

Dataset Summary

This data set includes in situ vegetation data collected during the Cloud and Land Surface Interaction Campaign 2007 (CLASIC07) campaign. Sampling was designed to coincide with satellite overpasses, such as Landsat's Thematic Mapper (TM) 5 and the Moderate Resolution Imaging Spectroradiometer (MODIS) sensor on NASA's Terra satellite (MODIS/Terra), which can be then used to estimate vegetation water content on the regional scale.

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N: 35.21, S: 34.79, E: -97.95, W: -98.6 2007/06/10 to 2007/07/03 800 m Varies Plant Characteristics

CLASIC07 Land Cover Classification Map

Dataset Summary

This data set consists of land cover classification data derived from satellite imagery as part of the Cloud and Land Surface Interaction Campaign 2007 (CLASIC07). ResourceSat-1 AWiFS images of the study area were retrieved for the period of April through August 2007. The land use classification image provides information about vegetation present in the study area at a resolution of 56 meters.

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N: 38.96, S: 31.62, E: -94.91, W: -95.13 2007/04/01 to 2007/08/31 56 m Varies Land Use Classes

CLASIC07 Vegetation Water Content Map

Dataset Summary

The Vegetation Water Content (VWC) map for the Cloud and Land Surface Interaction Campaign 2007 (CLASIC07) was derived by calculating Normalized Difference Water Index (NDWI) from ResourceSat-1 satellite imagery.

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N: 37.23, S: 34.35, E: -95.47, W: -99.53 2007/07/15 56 m Varies Plant Characteristics

SMAPVEX08 In Situ Soil Moisture Data

Dataset Summary

This data set includes several parameters that were obtained from field surveys as part of the Soil Moisture Active Passive Validation Experiment 2008 (SMAPVEX08).

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N: 39.09, S: 38.93, E: -75.55, W: -76.25 2008/09/29 to 2008/10/13 0.8 km 2 day to 3 day Electrical Conductivity, Soil Moisture/Water Content, Soil Temperature

SMAPVEX08 In Situ Vegetation Data

Dataset Summary

This data set includes in situ vegetation data collected during the Soil Moisture Active Passive Validation Experiment 2008 (SMAPVEX08) campaign. Sampling was designed to coincide with satellite overpasses, such as Landsat's Thematic Mapper (TM) 5 and the Moderate Resolution Imaging Spectroradiometer (MODIS) sensor on NASA's Terra satellite (MODIS/Terra), which can be then used to estimate vegetation water content on the regional scale.

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N: 39.02, S: 38.95, E: -75.94, W: -76.09 2008/10/02 to 2008/10/07 800 m Varies Leaf Characteristics, Plant Characteristics

SMAPVEX08 Land Cover Classification Map

Dataset Summary

This data set consists of land cover classification data derived from satellite imagery and of data obtained in the field as part of the Soil Moisture Active Passive Validation Experiment 2008 (SMAPVEX08).

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N: 39.1, S: 38.8, E: -75.6, W: -76.3 2008/06/01 to 2008/10/31 10 m Varies Land Use Classes

SMAPVEX08 PALS Backscatter Data

Dataset Summary

This data set contains backscatter data obtained by the Passive Active L-band System (PALS) microwave aircraft radar instrument as part of the Soil Moisture Active Passive Validation Experiment 2008 (SMAPVEX08).

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N: 39.09, S: 38.93, E: -75.55, W: -76.25 2008/09/29 to 2008/10/13 350 m to 1100 m 1 day to 3 day Radar Backscatter, Radar Cross-section

SMAPVEX08 PALS Brightness Temperature Data

Dataset Summary

This data set contains brightness temperatures obtained by the Passive Active L-band System (PALS) microwave aircraft radiometer instrument as part of the Soil Moisture Active Passive Validation Experiment 2008 (SMAPVEX08).

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N: 39.09, S: 38.93, E: -75.55, W: -76.25 2008/09/29 to 2008/10/13 350 m 1 day to 3 day Brightness Temperature, Land Surface Temperature

SMAPVEX08 Soil Texture Data

Dataset Summary

This data set contains soil texture data that were extracted from a multi-layer soil characteristics database for the conterminous United States and generated for each regional study area. Data are representative of the conditions present in the regional study areas during the general timeline of the Soil Moisture Active Passive Validation Experiment 2008 (SMAPVEX08) campaign.

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N: 39.09, S: 38.93, E: -75.55, W: -76.25 2008/10/01 to 2008/10/31 100 Varies Soil Water Holding Capacity, Soil Bulk Density, Soil Classification, Soil Porosity

SMAPVEX08 Surface Roughness Data

Dataset Summary

Surface roughness data for this data set were collected at several field sites as part of the Soil Moisture Active Passive Validation Experiment 2008 (SMAPVEX08) campaign.

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N: 39.1, S: 38.8, E: -75.6, W: -76.3 2008/09/29 to 2008/10/13 1 m Varies Surface Roughness

SMAPVEX08 Vegetation Water Content Map

Dataset Summary

The Vegetation Water Content (VWC) map for the Soil Moisture Active Passive Validation Experiment 2008 (SMAPVEX08) was derived by calculating Normalized Difference Water Index (NDWI) from Satellite Pour l'Observation de la Terre-4 (SPOT-4) overpasses on 11 October 2008. In addition, samples from a range of vegetation types were used to compare VWC and NDWI to the satellite imagery.

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N: 39.09, S: 38.93, E: -75.55, W: -76.25 2008/10/11 10 m Varies Plant Characteristics

SMAPVEX12 Core-Based In Situ Soil Moisture Data for Agricultural Area

Dataset Summary

This data set contains in situ soil moisture data collected with coring devices at several agricultural sites as part of the Soil Moisture Active Passive Validation Experiment 2012 (SMAPVEX12).

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N: 49.96, S: 49.44, E: -97.85, W: -98.51 2012/06/07 to 2012/07/19 3.2 km 1 day to 5 day Soil Moisture/Water Content

SMAPVEX12 Core-Based Soil Texture Data

Dataset Summary

This data set contains in situ soil texture data collected with coring devices at several sites as part of the Soil Moisture Active Passive Validation Experiment 2012 (SMAPVEX12).

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N: 49.96, S: 49.44, E: -97.85, W: -98.51 2012/06/07 to 2012/07/19 3.2 km 1 day Soil Texture

SMAPVEX12 In Situ Vegetation Data for Agricultural Area

Dataset Summary

This data set contains in situ vegetation data collected at several agricultural sites as a part of the Soil Moisture Active Passive Validation Experiment 2012 (SMAPVEX12).

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N: 49.96, S: 49.44, E: -97.85, W: -98.51 2012/06/07 to 2012/07/19 0.5 m 13 day Biomass, Plant Characteristics

SMAPVEX12 In Situ Vegetation Data for Forest Area

Dataset Summary

This data set contains in situ vegetation data collected at several forest sites as a part of the Soil Moisture Active Passive Validation Experiment 2012 (SMAPVEX12).

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N: 49.96, S: 49.44, E: -97.85, W: -98.51 2012/06/07 to 2012/07/17 10 m 1 day, 1 day Canopy Characteristics, Plant Characteristics, Biomass

SMAPVEX12 Land Cover Classification Map

Dataset Summary

This data set consists of land cover classification data derived from satellite imagery as part of the Soil Moisture Active Passive Validation Experiment 2012 (SMAPVEX12). Images from the RADARSAT-2, Système Pour l'Observation de la Terre (SPOT-4), and DMC International Imaging Ltd (DMCii) of the study area were retrieved for the summer of 2012. The land use classification image provides information about vegetation present in the study area at a resolution of 20 meters.

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N: 50.21, S: 49.31, E: -98.27, W: -98.97 2012/06/07 to 2012/07/19 20 m 1 day Land Use Classes

SMAPVEX12 PALS Backscatter Data

Dataset Summary

This data set contains backscatter data obtained by the Passive Active L-band System (PALS) microwave aircraft instrument as part of the Soil Moisture Active Passive Validation Experiment 2012 (SMAPVEX12).

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N: 49.96, S: 49.44, E: -97.85, W: -98.51 2012/06/07 to 2012/07/19 500 m to 1500 m 1 day to 5 day Radar Cross-section, Radar Backscatter

SMAPVEX12 PALS Brightness Temperature Data

Dataset Summary

This data set contains brightness temperatures obtained by the Passive Active L-band System (PALS) aircraft instrument. The data were collected as part of SMAPVEX12, the Soil Moisture Active Passive Validation Experiment 2012.

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N: 49.96, S: 49.44, E: -97.85, W: -98.51 2012/06/07 to 2012/07/19 500 m to 1500 m 1 day to 4 day Brightness Temperature, Land Surface Temperature

SMAPVEX12 Probe-Based In Situ Soil Moisture Data for Agricultural Area

Dataset Summary

This data set contains in situ soil moisture data collected at several agricultural sites as part of the Soil Moisture Active Passive Validation Experiment 2012 (SMAPVEX12).

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N: 49.96, S: 49.44, E: -97.85, W: -98.51 2012/06/07 to 2012/07/19 0.8 km 2 day to 3 day Electrical Conductivity, Soil Moisture/Water Content

SMAPVEX12 Probe-Based In Situ Soil Moisture Data for Forest Area

Dataset Summary

This data set contains in situ soil moisture data collected at several forested sites as a part of the Soil Moisture Active Passive Validation Experiment 2012 (SMAPVEX12).

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N: 49.96, S: 49.44, E: -97.85, W: -98.51 2012/06/07 to 2012/07/13 100 m 1 day to 8 day Electrical Conductivity, Soil Depth, Soil Temperature, Soil Moisture/Water Content

SMAPVEX12 Soil Texture Map

Dataset Summary

This data set consists of soil texture classification data derived from field surveys as part of the Soil Moisture Active Passive Validation Experiment 2012 (SMAPVEX12). The soil texture classification map provides information about vegetation present in the study area.

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N: 49.96, S: 49.44, E: -97.85, W: -98.51 2012/06/07 to 2012/07/19 316 m Varies Soil Texture

SMAPVEX12 Surface Roughness Data for Agricultural Area

Dataset Summary

This data set contains surface roughness data collected at several agricultural sites as a part of the Soil Moisture Active Passive Validation Experiment 2012 (SMAPVEX12).

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N: 49.96, S: 49.44, E: -97.85, W: -98.51 2012/06/07 to 2012/07/19 1 m Varies Surface Roughness

SMAPVEX12 Surface Roughness Data for Forest Area

Dataset Summary

This data set contains surface roughness data collected at several forested sites as a part of the Soil Moisture Active Passive Validation Experiment 2012 (SMAPVEX12).

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N: 49.96, S: 49.44, E: -97.85, W: -98.51 2012/06/07 to 2012/07/19 1 m Varies Surface Roughness

SMAPVEX12 UAVSAR Incidence-Angle Normalized Backscatter Data

Dataset Summary

This data set contains backscatter data obtained by the Uninhabited Aerial Vehicle Synthetic Aperture Radar (UAVSAR) instrument. The data were collected as part of the Soil Moisture Active Passive Validation Experiment 2012 (SMAPVEX12).

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N: 50.01, S: 49.32, E: -97.62, W: -98.67 2012/06/17 to 2012/07/17 6 m 1 day to 6 day Radar Backscatter, Radar Cross-section

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Other Validation Data

Data Sets and Collections Details and Data
Soil Moisture Experiment 2002 (SMEX02) Data More Details | Get Data
Soil Moisture Active Passive Experiment (SMAPEx) Project — External Data & Documentation More Details | Get Data
Canadian Experiment for Soil Moisture in 2010 (CanEx-SM10) — External Data & Documentation More Details | Get Data
Southern Great Plains 1999 Experiment (SGP99) — External Data & Documentation More Details | Get Data
Southern Great Plains 1997 Experiment (SGP97) — External Data & Documentation More Details | Get Data