Dataset Identification:
Resource Abstract:
- description: The vertical land change activity focuses on the detection, analysis, and explanation of topographic change.
These detection techniques include both quantitative methods, for example, using difference metrics derived from multi-temporal
topographic digital elevation models (DEMs), such as, light detection and ranging (lidar), National Elevation Dataset (NED),
Shuttle Radar Topography Mission (SRTM), and Interferometric Synthetic Aperture Radar (IFSAR), and qualitative methods, for
example, using multi-temporal aerial photography to visualize topographic change. The geographic study area of this activity
is Perry County, Kentucky. Available multi-temporal lidar, NED, SRTM, IFSAR, and other topographic elevation datasets, as
well as aerial photography and multi-spectral image data were identified and downloaded for this study area county. Available
mine maps and mine portal locations were obtained from the Kentucky Mine Mapping Information System, Division of Mine Safety,
300 Sower Boulevard, Frankfort, KY 40601 at http://minemaps.ky.gov/Default.aspx?Src=Downloads. These features were used to
spatially locate the study areas within Perry County. Previously developed differencing methods (Gesch, 2006) were used to
develop difference raster datasets of NED/SRTM (1950-2000 date range) and SRTM/IFSAR (2000-2008 date range). The difference
rasters were evaluated to exclude difference values that were below a specified vertical change threshold, which was applied
spatially by National Land Cover Dataset (NLCD) 1992 and 2006 land cover type, respectively. This spatial application of the
vertical change threshold values improved the overall ability to detect vertical change because threshold values in bare earth
areas were distinguished from threshold values in heavily vegetated areas. Lidar high-resolution (1.5 m) DEMs were acquired
for Perry County, Kentucky from U.S. Department of Agriculture, Natural Resources Conservation Service Geospatial Data Gateway
at https://gdg.sc.egov.usda.gov/GDGOrder.aspx#. ESRI Mosaic Datasets were generated from lidar point-cloud data and available
topographic DEMs for the specified study area. These data were analyzed to estimate volumetric changes on the land surface
at three different periods with lidar acquisitions collected for Perry County, KY on 3/29/12 to 4/6/12. A recent difference
raster dataset time span (2008-2012 date range) was analyzed by differencing the Perry County lidar-derived DEM and an IFSAR-derived
dataset. The IFSAR-derived data were resampled to the resolution of the lidar DEM (approximately 1-m resolution) and compared
with the lidar-derived DEM. Land cover based threshold values were applied spatially to detect vertical change using the lidar/IFSAR
difference dataset. Perry County lidar metadata reported that the acquisition required lidar to be collected with an average
of 0.68 m point spacing or better and vertical accuracy of 15 cm root mean square error (RMSE) or better. References: Gesch,
Dean B., 2006, An inventory and assessment of significant topographic changes in the United States Brookings, S. Dak., South
Dakota State University, Ph.D. dissertation, 234 p, at https://topotools.cr.usgs.gov/pdfs/DGesch_dissertation_Nov2006.pdf.;
abstract: The vertical land change activity focuses on the detection, analysis, and explanation of topographic change. These
detection techniques include both quantitative methods, for example, using difference metrics derived from multi-temporal
topographic digital elevation models (DEMs), such as, light detection and ranging (lidar), National Elevation Dataset (NED),
Shuttle Radar Topography Mission (SRTM), and Interferometric Synthetic Aperture Radar (IFSAR), and qualitative methods, for
example, using multi-temporal aerial photography to visualize topographic change. The geographic study area of this activity
is Perry County, Kentucky. Available multi-temporal lidar, NED, SRTM, IFSAR, and other topographic elevation datasets, as
well as aerial photography and multi-spectral image data were identified and downloaded for this study area county. Available
mine maps and mine portal locations were obtained from the Kentucky Mine Mapping Information System, Division of Mine Safety,
300 Sower Boulevard, Frankfort, KY 40601 at http://minemaps.ky.gov/Default.aspx?Src=Downloads. These features were used to
spatially locate the study areas within Perry County. Previously developed differencing methods (Gesch, 2006) were used to
develop difference raster datasets of NED/SRTM (1950-2000 date range) and SRTM/IFSAR (2000-2008 date range). The difference
rasters were evaluated to exclude difference values that were below a specified vertical change threshold, which was applied
spatially by National Land Cover Dataset (NLCD) 1992 and 2006 land cover type, respectively. This spatial application of the
vertical change threshold values improved the overall ability to detect vertical change because threshold values in bare earth
areas were distinguished from threshold values in heavily vegetated areas. Lidar high-resolution (1.5 m) DEMs were acquired
for Perry County, Kentucky from U.S. Department of Agriculture, Natural Resources Conservation Service Geospatial Data Gateway
at https://gdg.sc.egov.usda.gov/GDGOrder.aspx#. ESRI Mosaic Datasets were generated from lidar point-cloud data and available
topographic DEMs for the specified study area. These data were analyzed to estimate volumetric changes on the land surface
at three different periods with lidar acquisitions collected for Perry County, KY on 3/29/12 to 4/6/12. A recent difference
raster dataset time span (2008-2012 date range) was analyzed by differencing the Perry County lidar-derived DEM and an IFSAR-derived
dataset. The IFSAR-derived data were resampled to the resolution of the lidar DEM (approximately 1-m resolution) and compared
with the lidar-derived DEM. Land cover based threshold values were applied spatially to detect vertical change using the lidar/IFSAR
difference dataset. Perry County lidar metadata reported that the acquisition required lidar to be collected with an average
of 0.68 m point spacing or better and vertical accuracy of 15 cm root mean square error (RMSE) or better. References: Gesch,
Dean B., 2006, An inventory and assessment of significant topographic changes in the United States Brookings, S. Dak., South
Dakota State University, Ph.D. dissertation, 234 p, at https://topotools.cr.usgs.gov/pdfs/DGesch_dissertation_Nov2006.pdf.
Citation
- Title Vertical Land Change, Perry County, Kentucky.
-
- creation Date
2018-05-21T09:32:05.050196
Resource language:
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Digital Transfer Options
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- Linkage for online resource
-
- name Dublin Core references URL
- URL: https://doi.org/10.5066/F7445K05
- protocol WWW:LINK-1.0-http--link
- link function information
- Description URL provided in Dublin Core references element.
Linkage for online resource
- name Dublin Core references URL
- URL: https://doi.org/10.5066/F7445K05
- protocol WWW:LINK-1.0-http--link
- link function information
- Description URL provided in Dublin Core references element.
Linkage for online resource
- name Dublin Core references URL
- URL: https://topochange.cr.usgs.gov/
- protocol WWW:LINK-1.0-http--link
- link function information
- Description URL provided in Dublin Core references element.
Metadata data stamp:
2018-08-06T23:35:38Z
Resource Maintenance Information
- maintenance or update frequency:
- notes: This metadata record was generated by an xslt transformation from a dc metadata record; Transform by Stephen M. Richard, based
on a transform by Damian Ulbricht. Run on 2018-08-06T23:35:38Z
Metadata contact
-
pointOfContact
- organisation Name
CINERGI Metadata catalog
-
- Contact information
-
-
- Address
-
- electronic Mail Address cinergi@sdsc.edu
Metadata language
eng
Metadata character set encoding:
utf8
Metadata standard for this record:
ISO 19139 Geographic Information - Metadata - Implementation Specification
standard version:
2007
Metadata record identifier:
urn:dciso:metadataabout:58956618-5457-4a50-8353-838f6091214d
Metadata record format is ISO19139 XML (MD_Metadata)