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MERRA Spatial Downscaling for Hydrology (MSDH)


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Created: Aug 09, 2024 at 6:59 p.m.
Last updated: Aug 10, 2024 at 12:39 p.m.
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Content types: Geographic Feature Content  Multidimensional Content  Geographic Raster Content 
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Abstract

This resource holds the MERRA Spatial Downscaling for Hydrology (MSDH) downscaling tool developed to provide sub-daily high spatial resolution surfaces of weather variables for distributed hydrologic modeling from NASA Modern Era Retrospective-Analysis for Research and Applications reanalysis products. The tool uses spatial interpolation and physically based relationships between the weather variables and elevation to provide inputs at the scale of a gridded hydrologic model, typically smaller (∼100 m) than the scale of weather reanalysis data (∼20–200 km).

Detailed information on and an evaluation of MSDH is given in Sen Gupta, A. and D. G. Tarboton, (2016), "A tool for downscaling weather data from large-grid reanalysis products to finer spatial scales for distributed hydrological applications," Environmental Modelling & Software, 84: 50-69, http://dx.doi.org/10.1016/j.envsoft.2016.06.014.

Subject Keywords

Coverage

Spatial

Coordinate System/Geographic Projection:
WGS 84 EPSG:4326
Coordinate Units:
Decimal degrees
North Latitude
42.1155°
East Longitude
-111.4526°
South Latitude
41.6595°
West Longitude
-111.8245°

Temporal

Start Date:
End Date:

Content

README.md

MERRA Spatial Downscaling for Hydrology (MSDH)

  • Description: an R based tool to downscale globally available Modern Era Retrospective-Analysis for Research and Applications (MERRA) temperature, precipitation, wind speed, relative humidity, incoming shortwave and longwave radiation data to overcome data scarcity for hydrological analysis and modeling.

Software Information

  • Version: 1.0
  • Developers: Avirup Sen Gupta, and David Tarboton
  • Year first available: 2013
  • Source Code: https://github.com/AvirupSenGupta/MSDH
  • License: GNU General Public License version 3, http://www.gnu.org/licenses/gpl-3.0.html
  • Program language: R
  • Hardware: PC running Microsoft Windows
  • Software dependencies:
  • netCDF Operator (NCO), available at http://nco.sourceforge.net/
  • Climate Data Operators (CDO), available at https://code.zmaw.de/projects/cdo/files.
  • GTK+, available at http://www.gtk.org/
  • R, available at http://cran.r-project.org/bin/windows/base/

Using the software

Running "MERRA Spatial Downscaling for Hydrology (MSDH)" in windows computer

  1. download and install GTK2+ from: http://sourceforge.net/projects/gtk-win/files/latest/download

  2. The bin directory of GTK2+ installation must be set as path in environement variable Please follow the following procedure to do so. Click on -> Control Panel -> System -> Advanced Click on Environment Variables, under System Variables, find PATH, and click on it. In the Edit windows, modify PATH by adding the location of the class to the value for PATH. If you do not have the item PATH, you may select to add a new variable and add PATH as the name and the location of the class as the value.

  3. Download and install R from http://cran.r-project.org/bin/windows/base, if you have not done that already.

  4. The bin directory of R installation must be set as Environmental Variable path by similar procedure described above.

  5. Download and install NCO from http://nco.sourceforge.net/ and set its installaton directory as Environmental Variable path.

  6. Download and install CDO from https://code.zmaw.de/projects/cdo/files and set its installaton directory as Environmental Variable path.

  7. Make sure RunMSDH.exe and MSDH_USU.R are under the same folder.

  8. Click on RunMSDH.exe.

Contact Information

If you wish to use or incorporate this program (or parts of it) into other software that does not meet the GNU General Public License conditions contact the author to request permission.

Avirup Sen gupta
https://www.linkedin.com/in/thedatadreamer/

David Tarboton
https://hydrology.usu.edu/dtarb/

Data Services

The following web services are available for data contained in this resource. Geospatial Feature and Raster data are made available via Open Geospatial Consortium Web Services. The provided links can be copied and pasted into GIS software to access these data. Multidimensional NetCDF data are made available via a THREDDS Data Server using remote data access protocols such as OPeNDAP. Other data services may be made available in the future to support additional data types.

Related Resources

This resource is a different format of https://github.com/AvirupSenGupta/MSDH
This resource is described by Sen Gupta, A. and D. G. Tarboton, (2016), "A tool for downscaling weather data from large-grid reanalysis products to finer spatial scales for distributed hydrological applications," Environmental Modelling & Software, 84: 50-69, http://dx.doi.org/10.1016/j.envsoft.2016.06.014.

Credits

Funding Agencies

This resource was created using funding from the following sources:
Agency Name Award Title Award Number
National Aeronautics and Space Administration Extending Utah Energy Balance Snowmelt Model to Glacial Melt Calculations in HIMALA NNX11AK03G

How to Cite

Sen Gupta, A., D. Tarboton (2024). MERRA Spatial Downscaling for Hydrology (MSDH), HydroShare, http://www.hydroshare.org/resource/037f3b6819cf4e85aad3f9f069e2125d

This resource is shared under the Creative Commons Attribution CC BY.

http://creativecommons.org/licenses/by/4.0/
CC-BY

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