Sample datasets: Difference between revisions

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Most of GRASS's tutorials and help page examples are built around two sample datasets. You can [http://grass.osgeo.org/download/data.php download them from the GRASS website] (or a [http://grass.osgeo.org/mirrors.php local mirror])
'''Download:''' see https://grass.osgeo.org/download/data/


* '''Spearfish, South Dakota''' - this dataset has been with GRASS for many years.
Most of GRASS's tutorials and help page examples are built around two sample datasets. You can {{website|download/sample-data/|download them from the GRASS website}} (or a {{website|mirrors|local mirror}})


* '''North Carolina''' - this is a newly developed dataset with modern layers. (e.g. shortest path bus routing, SQL database queries)
* '''North Carolina''' - this is a newly developed dataset with modern layers. (e.g. shortest path bus routing, SQL database queries)
** The original shapefiles for Wake county in the North Carolina dataset are available at [http://www.wakegov.com/gis/services/data.htm http://www.wakegov.com/gis/services/data.htm]
** Metadata for these shapefiles are available at [ftp://wakeftp.co.wake.nc.us/gis/Webdownloads/METADATA/ ftp://wakeftp.co.wake.nc.us/gis/Webdownloads/METADATA/]


(historically: '''Spearfish, South Dakota''' - this dataset has been with GRASS for many years.)


If you would like to experiment with some local data, have a look at the [[Global datasets]] wiki page.
== Ideas for new datasets ==
=== Data organization ===
* provided as separate MAPSETS that can be inserted into nc_spm_08 or gisdemo_ncspm
* each MAPSET will have at least one example of application
=== Proposed new MAPSETS ===
* Road and street networks (nconemap, ncdot) from [http://www.ncdot.org/it/gis/DataDistribution/DOTData/default.html http://www.ncdot.org/it/gis/DataDistribution/DOTData/default.html]
* LRS road network, Integrated Statewide Road network, Bike Paths
* updated streets for wake [http://www.wakegov.com/gis/services/data.htm http://www.wakegov.com/gis/services/data.htm]
* add boundaries and POI for reference?
* include emergency centers ? hurricane evacuation routes? potential emergency shelters?
* include stream network?
==== New MAPSET Time_series_coast ====
* Coastal lidar point clouds, 1m res DEMs, 15 years in 10-15 snapshots, plus 1974 DEM for Jockey's Ridge,
aerial photos starting in 1936. The data set is rather complex with variable spatial coverage and time step,
(see the description) but should be useful for testing and teaching more complex analyses.
* mapset that includes DEMs and orthos for Jockey's ridge
http://courses.ncsu.edu/mea792/common/media/nc_coast_demseries.zip
http://courses.ncsu.edu/mea792/common/media/readme_nc_coast_demseries.txt
* to keep the mapset at reasonable size the raw x,y,z point clouds
are packaged separately, they can be imported with v.in.ascii or r.in.xyz
http://courses.ncsu.edu/mea792/common/media/nc_coast_pointseries.zip
* reference location for North Carolina with projection information (nc_spm_08 can also be used)
http://courses.ncsu.edu/mea792/common/media/gisdemo.zip
* "Getting started" with this data set assignment
http://courses.ncsu.edu/mea792/common/Assign_GISamodel/a_timeseries.html
(I will add a space-time cube practice soon).
* TODO: add 2009, 2010, 2011 lidar data and 2011 imagery
* smaller data set with DEMs only  [http://courses.ncsu.edu/mea582/common/media/01/NagsHead_series.zip http://courses.ncsu.edu/mea582/common/media/01/NagsHead_series.zip]
==== New MAPSET Landuse_img ====
* new 4 channel 1m res 2009 imagery NAID
* new NLCD 2006 from USGS and NLCD2001
* 0.15m res ortho?
* Include any post storm, post hurricane, post flood imagery for training purposes? See example here: [http://www.ncdot.org/it/gis/DataDistribution/SpecialData/NCStormDamageAndCleanup.html http://www.ncdot.org/it/gis/DataDistribution/SpecialData/NCStormDamageAndCleanup.html]
==== New MAPSET Time_series_census ====
this may take more time to prepare
data are available for 1970,80,90,2000,2010
combine with election districts?
=== LOCATIONS ===
* Clean up and provide nc_ll, nc_utm, nc_spf for testing projections
=== EXTERNAL data sets for testing external data formats ===
* point cloud ASCII, http://courses.ncsu.edu/mea792/common/Assign_GISamodel/assign2_data.xyz
* LAS
* shape
* geodatabase?
* MRsid, geotiff?
==== Anything else from here? ====
* Course material:
** http://courses.ncsu.edu/mea582/common/GIS_anal_lecture/GIS_Anal_webdata.html
** http://courses.ncsu.edu/mea792/common/Assign_GISamodel/Assignall.html#lidarair
LAS, e.g. http://grass.osgeo.org/sampledata/north_carolina/points.las (25MB, California)
* Additional data for North Carolina [http://www.nconemap.com/Default.aspx?tabid=286 http://www.nconemap.com/Default.aspx?tabid=286]
* Additional data for Wake county in North Carolina [http://www.wakegov.com/gis/services/data.htm http://www.wakegov.com/gis/services/data.htm]


If you would like to experiment with some local data, have a look at the [[Global datasets]] wiki page.
[[Category: Geodata]]

Latest revision as of 21:34, 7 July 2024

Download: see https://grass.osgeo.org/download/data/

Most of GRASS's tutorials and help page examples are built around two sample datasets. You can download them from the GRASS website (or a local mirror)

(historically: Spearfish, South Dakota - this dataset has been with GRASS for many years.)

If you would like to experiment with some local data, have a look at the Global datasets wiki page.

Ideas for new datasets

Data organization

  • provided as separate MAPSETS that can be inserted into nc_spm_08 or gisdemo_ncspm
  • each MAPSET will have at least one example of application

Proposed new MAPSETS

New MAPSET Time_series_coast

  • Coastal lidar point clouds, 1m res DEMs, 15 years in 10-15 snapshots, plus 1974 DEM for Jockey's Ridge,

aerial photos starting in 1936. The data set is rather complex with variable spatial coverage and time step, (see the description) but should be useful for testing and teaching more complex analyses.

  • mapset that includes DEMs and orthos for Jockey's ridge

http://courses.ncsu.edu/mea792/common/media/nc_coast_demseries.zip http://courses.ncsu.edu/mea792/common/media/readme_nc_coast_demseries.txt

  • to keep the mapset at reasonable size the raw x,y,z point clouds

are packaged separately, they can be imported with v.in.ascii or r.in.xyz http://courses.ncsu.edu/mea792/common/media/nc_coast_pointseries.zip

  • reference location for North Carolina with projection information (nc_spm_08 can also be used)

http://courses.ncsu.edu/mea792/common/media/gisdemo.zip

  • "Getting started" with this data set assignment

http://courses.ncsu.edu/mea792/common/Assign_GISamodel/a_timeseries.html

(I will add a space-time cube practice soon).

New MAPSET Landuse_img

New MAPSET Time_series_census

this may take more time to prepare

data are available for 1970,80,90,2000,2010

combine with election districts?

LOCATIONS

  • Clean up and provide nc_ll, nc_utm, nc_spf for testing projections

EXTERNAL data sets for testing external data formats

Anything else from here?

LAS, e.g. http://grass.osgeo.org/sampledata/north_carolina/points.las (25MB, California)