BAAQMD / BAAQMD/InMAP-SFAB

Establish grid to use for SFAB ISRM

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Description

## Summary

* Existing InMAP work uses one grid.
* BAAQMD CMAQ runs use another.
* Both grids are based on "Lambert Conformal Conic" (LCC) projections
* ... but have very different parameters;
* see maps and definitions below.
* Should we adopt the former or the latter for this project?
* Warping results from one to another will lose considerable detail

## Details

### InMAP

* [Proj.4 CRS][ISRM_CRS]
* [GeoJSON][ISRM_geojson]

image

### BAAQMD

* [Proj.4 CRS][CMAQ_CRS]
* [GeoJSON][CMAQ_geojson]
* [TopoJSON][CMAQ_topojson]

image

[ISRM_CRS]:
https://github.com/BAAQMD/InMAP-SFAB/blob/master/Data/Zenodo/marginal_values/InMAP_shape_prj.txt
[ISRM_geojson]: ../blob/master/Build/Geodata/ISRM_US_SFAB_cell_geometries.geojson

[CMAQ_CRS]: ../blob/master/Build/Geodata/CMAQ_LCC.prj
[CMAQ_geojson]: ../blob/master/Build/Geodata/CMAQ_LCC_1km_grid.geojson
[CMAQ_topojson]: ../blob/master/Build/Geodata/CMAQ_LCC_1km_grid.topojson

Contributor guide

No contributing guide indexed for this repository

Research direction

Compare the InMAP references in Data/Zenodo/marginal_values/InMAP_shape_prj.txt and Build/Geodata/ISRM_US_SFAB_cell_geometries.geojson with the BAAQMD files Build/Geodata/CMAQ_LCC.prj, CMAQ_LCC_1km_grid.geojson, and CMAQ_LCC_1km_grid.topojson. Start by reviewing the two CRS definitions and grid maps; done means selecting and documenting the grid and projection for this project.

Written by the indexing model from the issue text.

Assessment

Domain
data
Issue type
Feature
Difficulty
5/5
Estimated time
Over a week
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
25/100

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