HCID: Global Grid Cell Identification System at Multiple Spatial Resolutions

Version 1.4
HCID: Global Grid Cell Identification System at Multiple Spatial Resolutions
HarvestChoice, International Food Policy Research Institute (IFPRI); University of California, Davis (UC Davis), 2017, "HCID: Global Grid Cell Identification System at Multiple Spatial Resolutions", https://doi.org/10.7910/DVN/MZLXVQ, Harvard Dataverse, V1
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Description
HCID is a global grid identification system offering users to refer the location and boundary of a grid cell, available at multiple spatial resolutions, using a single integer number. Instead of using the coordinates (latitude and longitude) of two corners of the grid cell bounding box (i.e., upper-left and lower-right), we assign each grid cell with a sequential integer number, or a grid cell ID, unique to each spatial resolution. This system was developed by HarvestChoice (http://harvestchoice.org) and is being widely used to facilitate analysis of spatial data layers, including the visualization, domain analysis, spatial aggregation/dis-aggregation, and general exchange of spatially-explicit data across disciplines - without needing to use a GIS software and spatial analysis skills. For the five arc-minute resolution of grids, we call the ID system as "CELL5M", whereas ones for 30 arc-second, 30-minute and 1 degree are called CELL30S, CELL30M and CELL1D, respectively. Assigning 0 starting at the upper-left corner (longitude: -180.0, latitude: 90.0) with a geographic projection, for example, CELL5M ranges up to 9,331,199 at the lower-right corner (longitude: 180.0, latitude: -90.0). The grid cell ID at a specific location can be easily computed mathematically, and this can be also easily converted to different resolutions. (2010-02-01)
Subject Earth and Environmental Sciences; Agricultural Sciences
Keyword geographical information systems
Notes This work was undertaken as part of the CGIAR Research Program on Policies, Institutions, and Markets (PIM) led by the International Food Policy Research Institute (IFPRI). Funding support was provided by Bill & Melinda Gates Foundation and PIM.
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CELL10M.asc
Fixed Field Text Data - 16.7 MB
Published Feb 2, 2016
119 Downloads
MD5: 51833c5da7110ca2a153a113eef3c824
HCID at 10 arc-minute resolution. Esri ASC raster format with geographic projection.
CELL1D.asc
Fixed Field Text Data - 369.3 KB
Published Feb 2, 2016
114 Downloads
MD5: 879c35bd129625fa919842c9a93b78da
HCID at 1 degree resolution. Esri ASC raster format with geographic projection.
CELL30M.asc
Fixed Field Text Data - 1.6 MB
Published Feb 2, 2016
117 Downloads
MD5: 5a04c405d9e85635ad2b6c171e38ce09
HCID at 30 arc-minute resolution. Esri ASC raster format with geographic projection.
CELL5M.asc
Fixed Field Text Data - 70.1 MB
Published Feb 2, 2016
253 Downloads
MD5: b530346ab4f48dcc4d06647fa1d2447d
HCID at 5 arc-minute resolution. Esri ASC raster format with geographic projection.
HCB 2010 - HarvestChoice CellID (r2).pdf
HCB 2010 - HarvestChoice CellID (r2).pdf
Adobe PDF - 633.5 KB
Published Feb 2, 2016
241 Downloads
MD5: d295f96407be75a75255cfa89092493e
A HarvestChoice Brief providing technical background and code snippet to use HCID in computer programming.
Preview "HCB 2010 - HarvestChoice CellID (r2).pdf"
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