Smerge-Noah-CCI root zone soil moisture 0-40 cm L4 daily 0.125 x 0.125 degree V2.0 (SMERGE_RZSM0_40CM) at GES DISC
Smerge-Noah-CCI root zone soil moisture 0-40 cm L4 daily 0.125 x 0.125 degree V2.0 is a multi-decadal root-zone soil moisture product. Smerge is developed by merging the North American Land Data Assimilation System (NLDAS) land surface model output with surface satellite retrievals from the European Space Agency Climate Change Initiative. The data have a 0.125 degree resolution at a daily time-step, covering the entire continental United States and spanning nearly four decades (January 1979 to May 2019). This data product contains root-zone soil moisture of 0 - 40 cm layer, CCI derived soil moisture anomalies of 0-40 cm layer, and a soil moisture data estimation flag.
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| Spatial Extent: | Bounding Rectangle: N: 53 S: 25 E: -67 W: -125 |
Data Format(s): | Distribution: netCDF |
| Temporal Extent: | Platform(s): | SMERGE | |
| Data Center(s): | NASA/GSFC/SED/ESD/GCDC/GESDISC | Instrument(s): | NOT APPLICABLE |
| Version: | 2.0 | ||
- Type: Web User InterfaceDescription: Giovanni is an online (Web) environment for the display and analysis of geophysical parameters in which the provenance (data lineage) can easily be accessed. This user guide provides assistance on how to use Giovanni and information on Giovanni's data products and services.
- Title: Smerge-Noah-CCI root zone soil moisture 0-40 cm L4 daily 0.125 x 0.125 degree V2.0
- Version: 2.0
- Creator: Crow, Wade (USDA ARS) and K. Tobin (Texas A&M IU)
- Publisher: Goddard Earth Sciences Data and Information Services Center (GES DISC)
- Release Date: 2018-11-16T00:00:00.000Z
- Linkage: https://disc.gsfc.nasa.gov/datacollection/SMERGE_RZSM0_40CM_2.0.html
10.5067/PAVQY1KHTMUT
- READ-ME: https://hydro1.gesdisc.eosdis.nasa.gov/data/SMERGE/SMERGE_RZSM0_40CM.2.0/doc/README_SMERGE2.pdf, README Document
- HOW-TO: https://disc.gsfc.nasa.gov/information/howto?tags=hydrology, How to read and plot the data.
Collection Information
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Version Description
SMERGE version 2.0 is an improvement of the previous version (v1.0) of the dataset. The main differences between SMERGE v1.0 and SMERGE v2.0 are the addition of a new variable, CCI derived soil moisture anomalies of 0-40 cm layer, and an additional year of data for 2016. - Search for granules from this collection
Data Identification
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Processing Level
4
- Quality The data are provisional and subject to change as model improvements are implemented and new input data sets become available.
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Collection Progress
Complete
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Use Constraints
The Earth Observing System Data and Information System (EOSDIS) data use policy for NASA data can be accessed at https://earthdata.nasa.gov/earth-observation-data/data-use-policy. For information on how to properly cite and acknowledge data from the NASA GES DISC, refer to https://disc.gsfc.nasa.gov/information/documents?title=data-policy.
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Access Constraints
None
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Title: Validation of a New Root-Zone Soil Moisture Product: Soil MERGE
Publication Date: 2019-01-01
Author(s): Tobin, K. J., W. T. Crow, J. Dong, and M. E. Bennett
Series: IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
Volume: 12
Pages: 3351-3365
DOI: 10.1109/JSTARS.2019.2930946
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Title: Multi-decadal analysis of root-zone soil moisture applying the exponential filter across CONUS
Publication Date: 2017-01-01
Author(s): Tobin, K.J., R. Torres, W. Crow, and M.E. Bennett
Series: Hydrol. Earth Syst. Sci.
Volume: 21
Pages: 4403-4417
DOI: 10.5194/hess-21-4403-2017
Data Dates
| Creation | |
| Last Revision |
Publication References
Related URLs
Other Descriptive Keywords
Ancillary Keywords
- Hydrology
ISO Topic Categories
- CLIMATOLOGY/METEOROLOGY/ATMOSPHERE
Acquisition Information
Projects
| Project Short Name | Campaigns | Project Dates |
|---|---|---|
| SMERGE | No campaigns listed. | No dates provided. |
Temporal Information
Spatial Information
| Coverage Type | Zone Identifier | Geometry | Granule Representation |
|---|---|---|---|
| HORIZONTAL | CARTESIAN | CARTESIAN |
Location Keywords
- CONTINENT
- NORTH AMERICA
Data Centers
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NASA/GSFC/SED/ESD/GCDC/GESDISC
ARCHIVERGoddard Earth Sciences Data and Information Services Center (formerly Goddard DAAC), Global Change Data Center, Earth Sciences Division, Science and Exploration Directorate, Goddard Space Flight Center, NASA
This data center does not have any addresses listed.
This data center does not have any contact mechanisms listed.
Data Contacts
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Hualan Rui
Metadata AuthorHualan Rui
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Goddard Earth Sciences Data and Information Services Center
Code 610.2
NASA Goddard Space Flight Center
Greenbelt, MD 20771
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GES DISC HELP DESK SUPPORT GROUP
Data Center ContactGES DISC HELP DESK SUPPORT GROUP
NASA/GSFC/SED/ESD/GCDC/GESDISC-
Goddard Earth Sciences Data and Information Services Center
Code 610.2
NASA Goddard Space Flight Center
Greenbelt, MD 20771
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Archive And Distribution Information
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Format: netCDF
Format Type: Native
Media: Online Archive
Fees: No Fee
File Distribution Information
There is no direct distribution information for this collection.