Some tips on searching for data using Earthdata Search.
Earthdata Search's free text search field works best when searching for a specific collection by collection name, shortname, id or project.
Earthdata Search attempts to understand free text queries. e.g. "land surface temperature over Uganda for the last 10 years" -- but its natural language algorithm is not perfect, and does not always return useful results.
When this happens, or if you don't know the collection or project name, it is recommended to start your search using the search "facets" (aka checkboxes) on the left to specify keywords, projects, etc.
Then enter spacial and temporal criteria using the spacial and temporal criteria buttons located to the right of the free text field.
So for example, to search for "land surface temperature over Uganda for the last 10 years"
In granule view, you can filter the granules selected using any combination of the following:
To search for a specific granule file, you will need to know the name or id of the collection name to which it belongs.
When you have that, search for the collection, and then filter the collection's granules using the filename.
For example, to search for file N42W072.zip in in collection ASTGTM:
In granule view, you can download granules one at a time using the "Download single granule data" or "Configure and download single granule data" buttons next to each granule.
CALIPSO
Dimensions - Orbit/Path
Enter orbit and path coordinates separated by spaces, e.g. "2,3 5,7 8,8"
Note - Orbit and Path values are not continuous and cannot be used in a range.
More info:
https://www-calipso.larc.nasa.gov/resources/calipso_users_guide/faq.php
MISR
Dimensions - Path/Block
Enter path and block coordinates separated by spaces, e.g. "2,3 5,7 8,8"
Note - Path values are not continuous and cannot be used in a range.
More info:
https://eosweb.larc.nasa.gov/
https://eosweb.larc.nasa.gov/sites/default/files/project/misr/guide/MISR_Science_Data_Product_Guide.pdf
MODIS EASE
Dimensions - Horizontal/Vertical
Enter h and v coordinates separated by spaces, e.g. "2,3 5,7 8,8"
More info:
"For MODIS Sea Ice EASE-Grid products. Tiles are 951 pixels x 951 pixels and 10 degrees by 10 degrees, with half of the tiles (313) located in the north polar grid and half in the south polar grid. In addition:
https://nsidc.org/data/modis/ease-grid-tile-locations-sea-ice
http://nsidc.org/data/ease
MODIS Sinusoidal
Dimensions - Horizontal/Vertical
Enter h and v coordinates separated by spaces, e.g. "2,3 5,7 8,8"
More info:
"MODIS Land products use the Sinusoidal grid tiling system. Tiles are 10 degrees by 10 degrees at the equator. The tile coordinate system starts at (0,0) (horizontal tile number, vertical tile number) in the upper left corner and proceeds right (horizontal) and downward (vertical). The tile in the bottom right corner is (35,17)."
http://spatialreference.org/ref/sr-org/modis-sinusoidal/
https://modis-land.gsfc.nasa.gov/MODLAND_grid.html
https://lpdaac.usgs.gov/dataset_discovery/modis
WELD ALASKA Tile
Dimensions - Horizontal/Vertical
Enter h and v coordinates separated by spaces, e.g. "2,3 5,7 8,8"
More info:
A U.S. Landsat ARD 30m tile system based on the Web-Enabled Landsat Data (WELD) project, with coordinates anchored in ALASKA.
Upper Left Tile (ul corner) | Lower Right Tile (lr corner) | ||||||||
(h) | (v) | ulX (m) | ulY (m) | (h) | (v) | lrX (m) | lrY (m) | ||
Alaska | 0 | 0 | -851715 | 2474325 | 16 | 13 | 1698285 | 374325 |
https://landsat.usgs.gov/what-us-ard-tile-grid
https://landsat.usgs.gov/ard#Tile%20Grid
WELD CONUS Tile
Dimensions - Horizontal/Vertical
Enter h and v coordinates separated by spaces, e.g. "2,3 5,7 8,8"
More info:
A U.S. Landsat ARD 30m tile system based on the Web-Enabled Landsat Data (WELD) project, with coordinates anchored in CONUS (the continental U.S.)
Upper Left Tile (ul corner) | Lower Right Tile (lr corner) | ||||||||
(h) | (v) | ulX (m) | ulY (m) | (h) | (v) | lrX (m) | lrY (m) | ||
CONUS | 0 | 0 | -2565585 | 3314805 | 32 | 21 | 2384415 | 14805 |
https://landsat.usgs.gov/what-us-ard-tile-grid
https://landsat.usgs.gov/ard#Tile%20Grid
WRS-1 (Landsat 1-3)
Dimensions - Path/Row
Enter path and row coordinates separated by spaces, e.g. "2,3 5,7 8,8"
More info:
"The Worldwide Reference System (WRS) is a global notation used in cataloging Landsat data. Landsat 8 and Landsat 7 follow the WRS-2, as did Landsat 5 and Landsat 4. Landsat 1, Landsat 2, and Landsat 3 followed WRS-1.""
https://landsat.usgs.gov/what-worldwide-reference-system-wrs
WRS-2 (Landsat 4+)
Dimensions - Path/Row
Enter path and row coordinates separated by spaces, e.g. "2,3 5,7 8,8"
More info:
"The Worldwide Reference System (WRS) is a global notation used in cataloging Landsat data. Landsat 8 and Landsat 7 follow the WRS-2, as did Landsat 5 and Landsat 4. Landsat 1, Landsat 2, and Landsat 3 followed WRS-1.""
https://landsat.usgs.gov/what-worldwide-reference-system-wrs