Utilities for the Jornada Geospatial database (jgeo) and related services.
- A python package called
jgeo_pyfor managing geopackages, metadata, ArcGIS feature services, and maps. - Some jupyter notebooks for interacting with ArcGIS online and the jgeo PostGIS database.
- QGIS scripts
- Various logs and other records.
All of this is for working with a the geospatial data resources below.
- The jgeo PostGIS database hosted (for now) on the termite server (at Wooton Hall)
- The ESRI file geodatabases created and maintained by the Jornada GIS group (Scott Schrader, Andrea Ernst, Amy Slaughter, et al)
- ArcGIS featureLayerCollections derived from the data sources above and hosted in NMSU's ArcGIS Online system (NMSU AGOL, https://nmsu.maps.arcgis.com)
- ArcGIS web maps and applications hosted on NMSU AGOL and mirrored on the Jornada LTER website (in development...)
- jgeo_py/ is a basic python package for working with geopackages and ArcGIS online (AGOL)
- notebooks/ contains a bunch of jupyter notebooks - these are the main source of code for making geopackages and populating jgeo.
- qgis_scripts/ has a few scripts using the pyQGIS api to extract things from geospatial layers.
If you want to use the scripts and notebooks you may need to create a
jgeo_cred.py and an nmsu_agol_cred.py files with your credentials for
these resources.
- jrn_studies_gpkg/ is a collection of geopackages corresponding to named Jornada studies (prj001, prj002, etc) and holding known geospatial layers for those projects.
- logs/ has the various logs created in the process of populating the jgeo database
- metadata/ is a collection of metadata files in the
.qmdformat (QGIS). This includes those extracted from JornadaGIS file geodatabases, and newer metadata created by the IM team. - qgis_projects/ has a few QGIS project files
- requests/ contains a few requested data files
- thematic_gpkgs/ has a few "thematic" geopackages with metadata. These are being tranfered to jgeo soon.
- tmp/ empty (usually) temporary directory
The reference geopackages were derived from ArcGIS file geodatabases managed by the USDA Jornada GIS team (Scott Schrader et al) and from layers in the Jornada mobile app (contact Dylan Burruss). The AGOL hosted feature services were then derived from these reference geopackages and uploaded to NMSU AGOL using the ArcGIS python API in early 2022.
At some point they'll need to be updated to follow spatial data QA/QC, so naming of all JornadaGeospatial layers is being preserved to match the source layers.
Updating the NMSU AGOL layers will probably need to be done non-destructively. That is, metadata and feature service settings on NMSU AGOL should be preserved if possible.
- ArcGIS Python API documentation
- GeoPandas is a useful complement to ArcGIS python API, and there are ways to upload geodataframes to AGOL hosted feature services (though maybe buggy) using the GeoAccessor.
- Info about AGOL Feature Services
- A tutorial on publishing multiple layers to a featureLayerCollection
- See this question/answer for a way to update AGOL hosted feature layers using GeoJSON files.
- Publishing feature services and layers on AGOL using the python API is complex and requires setting lots of options using python dicts or json formats. More here and here.
- Another tutorial for adding features to an AGOL feature service.