Snow-Off Digital Terrain Model (DTM) from 2010 LiDAR for the Boulder Creek Critical Zone Observatory (CZO), Colorado
Metadata also available as
Metadata:
- Identification_Information:
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- Citation:
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- Citation_Information:
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- Originator: Suzanne Prestrud Anderson
- Originator: Qinghua Guo
- Originator: Eric Parrish
- Publication_Date: 20111231
- Title:
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Snow-Off Digital Terrain Model (DTM) from 2010 LiDAR for the Boulder Creek Critical Zone Observatory (CZO), Colorado
- Edition: Version 1
- Geospatial_Data_Presentation_Form: remote-sensing image
- Series_Information:
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- Series_Name:
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Snow-Off LiDAR Point Cloud and Digital Elevation Models (DEMs) from 2010 for the Boulder Creek Critical Zone Observatory (CZO), Colorado
- Issue_Identification: Digital Surface Model
- Publication_Information:
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- Publication_Place: Berkley, CA
- Publisher: National Center for Airborne Laser Mapping (NCALM)
- Other_Citation_Details:
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Please give data set credit as below and cite as: Anderson, S.P., Qinghua, G., and Parrish, E.G., 2012, Snow-on and snow-off LiDAR point cloud data and digital elevation models for study of topography, snow, ecosystems, and environmental change at Boulder Creek Critical Zone Observatory, Colorado: Boulder Creek CZO, INSTAAR, University of Colorado at Boulder, digital media.
- Online_Linkage: <http://www.opentopography.org/>
- Online_Linkage: <http://www.ncalm.org>
- Description:
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- Abstract:
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This 1m Digital Terrain Model (DTM) is a snow-off DTM derived from bare-ground Light Detection and Ranging (LiDAR) point cloud data from August 2010 for the Boulder Creek Critical Zone Observatory (CZO), near Boulder Colorado. This dataset is better suited for derived layers such as slope angle, aspect, and contours. The DTM was created from 1,375 LiDAR point cloud tiles subsampled from 10 points/m2 to 1-meter postings, acquired by the National Center for Airborne Laser Mapping (NCALM) project. This data was collected in collaboration between the Boulder Creek CZO and NCALM, both funded by the National Science Foundation (NSF). The DTM has the functionality of a map layer for use in Geographic Information Systems (GIS) or remote sensing software. Total area imaged is 598.92 km^2. The LiDAR point cloud data was acquired with an Optech Gemini Airborne Laser Terrain Mapper (ALTM) and mounted in a Piper Twin PA-31 Chieftain with Inertial Measurement Unit (IMU) at a flying height of 600 m. Data from four GPS (Global Positioning System) ground stations were used for aircraft trajectory determination. The continuous DTM surface was created by mosaicing and then kriging 1 km2 LiDAR point cloud LAS-formated tiles using Golden Software's Surfer 8 Kriging algorithm. Horizontal accuracy is 11 cm RMSE at 1 sigma and vertical accuracy is 5-30 cm RMSE at 1 sigma. The layer is available in IMAGINE format approx. 4 GB of data. It has a UTM zone 13 projection, with a NAD83 horizonal datum and a NAVD88 vertical datum, with FGDC-compliant metadata. A shaded relief model was also generated. A similar layer, the Digital Surface Model (DSM), is a first-stop elevation layer. Accessory layers consist of index map layers for point cloud tiles and flight lines, each with detailed attribute information such as acquisition date and tile file name. The DTM is available through an unrestricted public license. Other LiDAR DSMs, DTMs, and point cloud data available in this series include snow-on data for 2010. Together, the LiDAR DEMs and point cloud data will be of interest to land managers, scientists, and others for study of topography, snow, ecosystems, and environmental change.
- Purpose:
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Digital Elevation Models acquired for the Boulder Creek CZO area: 1) take advantage of state-of-the-art remote-sensing technologies to produce baseline geospatial data, 2) benefit education and outreach, 3) promote multi-disciplinary research of environmental change in the Boulder Creek area. The DEMs enable display and analysis of terrain features at high resolution. The DEMs are used as a fundamental layer of information in Geographic Information Systems (GIS) and Spatial Information Decision Support Systems (DSS), and can be used to generate datasets relating to hydrography, slope, aspect, and other features. A number of the priority layers of spatial information recognized by the National Spatial Data Infrastructure may be derived from terrain DEMs, including elevation, hydrography, slope, and aspect.
- Supplemental_Information:
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Filenaming convention for this dataset is CZOsite_type-of-DEM_study-site-or-date_SnON-or-SnOff.tif. For example, BcCZO_DSM_glv_SnOff.tif.
- Time_Period_of_Content:
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- Time_Period_Information:
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- Range_of_Dates/Times:
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- Beginning_Date: 20100821
- Beginning_Time: 15:12:27 GMT
- Ending_Date: 20100826
- Ending_Time: 0:01:10 GMT
- Currentness_Reference: ground condition
- Status:
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- Progress: Complete
- Maintenance_and_Update_Frequency: Irregular
- Spatial_Domain:
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- Bounding_Coordinates:
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- West_Bounding_Coordinate: -105.716441
- East_Bounding_Coordinate: -105.216329
- North_Bounding_Coordinate: 40.164253
- South_Bounding_Coordinate: 39.909797
- Keywords:
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- Theme:
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- Theme_Keyword_Thesaurus: None
- Theme_Keyword: Cartography
- Theme_Keyword: Geodesy
- Theme_Keyword: Geography
- Theme_Keyword: Hydrography
- Theme_Keyword: Mapping
- Theme_Keyword: Topography
- Theme_Keyword: Remote
- Theme_Keyword: Sensing
- Theme_Keyword: DEM
- Theme_Keyword: DSM
- Theme_Keyword: DTM
- Theme_Keyword: scan
- Theme_Keyword: tiff
- Theme_Keyword: digital
- Theme_Keyword: elevation
- Theme_Keyword: water
- Theme_Keyword: LIDAR
- Theme_Keyword: point cloud
- Theme_Keyword: LAS
- Theme_Keyword: Watershed
- Theme:
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- Theme_Keyword_Thesaurus: USGS Enterprise Web Thesaurus
- Theme_Keyword: LIDAR images
- Theme_Keyword: LIDAR
- Theme_Keyword: kriging
- Theme_Keyword: watershed management
- Theme_Keyword: digital cartographic data
- Theme_Keyword: geographic information system (GIS) dataset
- Theme_Keyword: geospatial data
- Theme_Keyword: elevation maps
- Theme_Keyword: topo maps
- Theme_Keyword: hydrologic maps
- Theme_Keyword: soils
- Theme_Keyword: climatology
- Theme_Keyword: ecology
- Theme_Keyword: petrology
- Theme_Keyword: climatic change
- Theme_Keyword: ecosystem functions
- Theme_Keyword: slope
- Theme:
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- Theme_Keyword_Thesaurus: ISO 19115 Topic Category
- Theme_Keyword: imageryBaseMapsEarthCover
- Theme_Keyword: elevation
- Theme_Keyword: climatologyMeteorologyAtmosphere
- Theme_Keyword: environment
- Theme_Keyword: geoscientificInformation
- Theme_Keyword: InlandWaters
- Place:
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- Place_Keyword_Thesaurus: Geographic Names Information System
- Place_Keyword: United States
- Place_Keyword: Colorado
- Place_Keyword: Boulder County
- Place_Keyword: Critical Zone Observatory
- Place_Keyword: Boulder
- Place:
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- Place_Keyword_Thesaurus: None
- Place_Keyword: Gordon Gulch
- Place_Keyword: Betasso Preserve
- Place_Keyword: Green Lakes Valley
- Place_Keyword: Como Creek
- Place_Keyword: Boulder
- Place_Keyword: Boulder Creek
- Place_Keyword: Arikaree Glacier
- Place_Keyword: Middle Boulder Creek
- Place_Keyword: Fourmile Canyon
- Place_Keyword: Fourmile Creek
- Place_Keyword: Bummer's Gulch
- Place_Keyword: Long Gulch
- Place_Keyword: Emerson Gulch
- Place_Keyword: Schoolhouse Gulch
- Place_Keyword: Melvin Gulch
- Place_Keyword: Gold Run Creek
- Stratum:
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- Stratum_Keyword_Thesaurus: None
- Stratum_Keyword: Terrain
- Stratum_Keyword: Earth
- Stratum_Keyword: Surface
- Stratum_Keyword: Ground
- Temporal:
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- Temporal_Keyword_Thesaurus: None
- Temporal_Keyword: August
- Temporal_Keyword: Summer
- Temporal_Keyword: 2010
- Access_Constraints: None
- Use_Constraints:
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Dataset credit required. All improvements made to original data are not the reponsibility of the Critical Zone Observatory (CZO), the Institute of Arctic and Alpine Research (INSTAAR) or the National Center for Airborne Laser Mapping (NCALM). The user of Boulder Creek CZO data agrees not to resell or redistribute shared data. Use at your own risk. Users assume responsibility to determine the usability of the dataset, as well as dataset resolution and accuracy, for their purposes. It is not recommended that the data be used at a scale larger than source scale.
- Point_of_Contact:
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- Contact_Information:
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- Contact_Person_Primary:
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- Contact_Person: Suzanne Prestrud Anderson
- Contact_Organization:
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University of Colorado, Institute of Arctic Research and Alpine Research (INSTAAR)
- Contact_Position: Principal Investigator
- Contact_Address:
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- Address_Type: mailing address
- Address: UCB 450
- City: Boulder
- State_or_Province: Colorado
- Postal_Code: 80309-0450
- Country: USA
- Contact_Electronic_Mail_Address: Suzanne.Anderson@colorado.edu
- Data_Set_Credit:
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The following acknowledgment should accompany any publication or citation of these data: Logistical support and/or data were provided by the NSF-supported Boulder Creek Critical Zone Observatory and National Center for Airborne Laser Mapping (NCALM). The user of Boulder Creek CZO data agrees to provide proper acknowledgment with each usage of the data. Citation of the name(s) of the investigator(s) responsible for the data set. In addition to the generic statement above, constitute proper acknowledgment. Author(s) (including Boulder Creek CZO investigators) of published material that makes use of previously unpublished Boulder Creek CZO data agree to provide the Boulder Creek CZO data manager with four (4) copies (preferably reprints) of that material for binding as soon as it becomes available.
- Native_Data_Set_Environment:
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Terrasolid's TerraScan; Optech’s DashMap ver. 5.1; Golden Software's Surfer vs. 8; Microsoft Windows XP Version 5.1 (Build 2600) Service Pack 3; ESRI ArcMap 9.3.1.1850; ESRI ArcCatalog 9.3.1.1850
- Data_Quality_Information:
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- Attribute_Accuracy:
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- Attribute_Accuracy_Report:
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The user of these data should be aware that, while efforts have been taken to ensure that these data are of the highest quality, there is no guarantee of perfection for the data contained herein and the possibility of errors exists. Quality checks were performed throughout all processing procedures. A Quality Assurance/Quality Control (QA/QC) report prepared by the Spatial Analysis lab at the University of California, Merced is included with this data release, see BcCZO_2010_QA_QC_Snow_Off_Report.pdf. Items covered include the quality of pre-processed LiDAR data produced by the National Center for Airborne Laser Mapping (NCALM). Areas of quality covered by the report include completeness of the Lidar data compared to the proposed study area (Area), the average points per square meter for each tile (Point Density), and detailed point density of the entire site (Detailed Point Density), overall point return intensity of the site (Intensity), visual inspection of the hillshade digital elevation model (Hillshade) and the attributes included in the Lidar data. Diminished accuracies are to be expected in areas of extreme terrain and dense vegetation.
- Logical_Consistency_Report:
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Visual examination and quantitative error assessment were conducted to ensure quality control. A final Quality Control Report (BcCZO_2010_QA_QC_Snow_Off_Report.pdf) is included with the dataset.
- Completeness_Report:
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1,375 LAS tiles were produced covering an area of 598.92 square kilometers, stretching from the Continental Divide east to Boulder. The tiles were then processed to produce mosaiced Digital Terrain Models (DTMs, Digital Surface Models (DSMs) and hillshades of the DTMs and DSMs.
- Positional_Accuracy:
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- Horizontal_Positional_Accuracy:
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- Horizontal_Positional_Accuracy_Report:
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11 cm RMSE (1 sigma) or better horizontal accuracy. For more information see BcCZO_2010_Project_Report.pdf and NCALM_2007_WhitePaper.pdf.
- Vertical_Positional_Accuracy:
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- Vertical_Positional_Accuracy_Report:
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5-30 cm RMSE (1 sigma) or better vertical accuracy. NCALM makes every effort to produce the highest quality LiDAR data possible but every LiDAR point cloud and derived DEM will have visible artifacts if it is examined at a sufficiently fine level. Examples of such artifacts include visible swath edges, corduroy (visible scan lines), and data gaps. NCALM cannot devote the required time to remove all artifacts from data sets, but if researchers find areas with artifacts that impact their applications they should contact NCALM and we will assist them in removing the artifacts to the extent possible – but that this may well involve the PIs devoting additional time and resources to this process. A detailed discussion on the causes of data artifacts and how to recognize them can be found here: GEM_Rep_2005_01_002.pdf, and a discussion of the procedures NCALM uses to ensure data quality can be found here: NCALM_2007_WhitePaper.pdf. For more information see BcCZO_2010_Project_Report.pdf.
- Lineage:
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- Source_Information:
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- Source_Scale_Denominator: 600 m flying altitude
- Type_of_Source_Media: Digital data
- Source_Time_Period_of_Content:
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- Time_Period_Information:
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- Range_of_Dates/Times:
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- Beginning_Date: 20100810
- Beginning_Time: 15:12:27 GMT
- Ending_Date: 20100826
- Ending_Time: 00:01:10 GMT
- Source_Citation_Abbreviation: NCALM, Laser Range Data, 2010
- Source_Contribution:
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Laser range data acquired with the Optech Gemini Airborne Laser Terrain Mapper (ALTM)
- Source_Information:
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- Source_Scale_Denominator: 600 m flying altitude
- Type_of_Source_Media: Digital data
- Source_Citation_Abbreviation: NCALM, GPS data, 2010
- Source_Contribution: Base station GPS files and airborne GPS files
- Source_Information:
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- Source_Scale_Denominator: 600 m flying altitude
- Type_of_Source_Media: Digital data
- Source_Citation_Abbreviation: NCALM, IMU flight data, 2010
- Source_Contribution: Inertial Measurement Unit during flight data
- Source_Information:
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- Source_Scale_Denominator: 600 m flying altitude
- Type_of_Source_Media: Digital data
- Source_Citation_Abbreviation: NCALM, LiDAR data strip LAS files, 2010
- Source_Contribution:
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Input GPS, IMU, Laser Range Data and configuration and calibration file to DashMap to create raw LiDar data output, flight strip LAS files
- Source_Information:
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- Source_Scale_Denominator: 600 m flying altitude
- Type_of_Source_Media: Digital Data
- Source_Citation_Abbreviation: NCALM, LAS bare-earth and surface, 2011
- Source_Contribution: TerraScan filtered (bare-earth) and unfiltered point files
- Source_Information:
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- Source_Scale_Denominator: 600 m flying altitude
- Type_of_Source_Media: Digital data
- Source_Citation_Abbreviation: NCALM, DEM and hillshades, 2011
- Source_Contribution:
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Surfer kriging, Perl, Python, and AML scripts to create DEMs and hillshades
- Source_Information:
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- Source_Scale_Denominator: 600 m flying altitude
- Type_of_Source_Media: Digital data
- Source_Citation_Abbreviation:
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INSTAAR, GeoTIFF DEMs, Hillshades, index files and FGDC metadata, 2012
- Source_Contribution:
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IMAGINE and ArcGIS GRID input to create GeoTIFFs, index shapefiles, and FGDC metadata.
- Source_Information:
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- Source_Scale_Denominator: 600 m flying altitude
- Type_of_Source_Media: Digital report
- Source_Citation_Abbreviation: Uni of CA, Merced, QA/QC Report, 2011
- Source_Contribution:
-
Quality Assessment and Quality Control (QA/QC) of LiDAR products for Boulder CZO snow-on and snow-off data acquisition
- Source_Information:
-
- Source_Scale_Denominator: 600 m flying altitude
- Type_of_Source_Media: Digital data
- Source_Citation_Abbreviation: INSTAAR, project management, 2011
- Source_Contribution:
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Project management, QA/QC of delivered data, develop website interface
- Source_Information:
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- Source_Scale_Denominator: 600 m flying altitude
- Type_of_Source_Media: Digital data
- Source_Citation_Abbreviation: INSTAAR, data management, 2011
- Source_Contribution: INSTAAR, project management, 2011
- Process_Step:
-
- Process_Description:
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For more details see BcCZO_2010_Project_Report.pdf. The LIDAR point cloud data was acquired with an Optech Gemini Airborne Laser Terrain Mapper (ALTM) 06SEN/CON195 and digitizer 08DIG017 system and mounted in a Piper Twin PA-31 Chieftain with tail number N931SA at a flight altitude of 600 meters and a flight speed of 65 meters/second. Swath width is 255.07 m, swath overlap is 50%, point density is 10.28 points/m2, cross-track resolution is 0.254 m and down-track resolution is 0.383 m. Data from four GPS ground stations were used with coordinates relative to the NAD83 (CORS96) Reference Frame. Airplane trajectories for all survey flights are processed using KARS software (Kinematic and Rapid Static, Gerry Mader). GPS, trajectory, and inertial measurement unit (IMU) data collected during the flight were output. The collection was uneventful.
- Source_Used_Citation_Abbreviation: NCALM, CZO project LiDAR acquisition, 2010
- Process_Date: 20110323
- Process_Time: 14203500
- Source_Produced_Citation_Abbreviation: NCALM, Laser Range Data, 2010
- Source_Produced_Citation_Abbreviation: NCALM, GPS data, 2010
- Source_Produced_Citation_Abbreviation: NCALM, IMU flight data, 2010
- Process_Contact:
-
- Contact_Information:
-
- Contact_Person_Primary:
-
- Contact_Person: Juan Carlos Fernandez
- Contact_Organization:
-
National Center for Airborne Laser Mapping (NCALM), University of Houston
- Contact_Position: NCALM Mission Planner / Laser Operator / Electronics Engineer
- Contact_Address:
-
- Address_Type: mailing address
- Address: Department of Civil and Environmental Engineering
- City: Houston
- State_or_Province: TX
- Country: USA
- Contact_Voice_Telephone: 832-842-8884
- Contact_Electronic_Mail_Address: jfernan4@Central.UH.EDU
- Process_Step:
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- Process_Description:
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For more details see BcCZO_2010_Project_Report.pdf. GPS, trajectory, and inertial measurement unit (IMU) data are input into APPLANIX software POSPac (MMS 5.2) to produce a complete navigation solution, SBET (Smoothed Best Estimated Trajectory). The SBET and raw laser range data were combined using Optech's Dashmap processing program to generate LAS-formated laser point data, stored by flight strip.
- Source_Used_Citation_Abbreviation: NCALM, Laser Range Data, 2010
- Source_Used_Citation_Abbreviation: NCALM, GPS data, 2010
- Source_Used_Citation_Abbreviation: NCALM, IMU flight data, 2010
- Source_Produced_Citation_Abbreviation: NCALM, LiDAR data strip LAS files, 2010
- Process_Contact:
-
- Contact_Information:
-
- Contact_Person_Primary:
-
- Contact_Person: Ionut Iordache
- Contact_Organization:
-
National Center for Airborne Laser Mapping (NCALM), University of California Berkeley
- Contact_Address:
-
- Address_Type: mailing address
- Address: Department of Earth & Planetary Science
- Address: 277 McCone Hall
- City: Berkeley
- State_or_Province: CA
- Postal_Code: 94720
- Country: USA
- Contact_Voice_Telephone: 510-642-3991
- Process_Step:
-
- Process_Description:
-
For more details see BcCZO_2010_Project_Report.pdf. LiDAR data strip LAS files were filtered to ground and non-ground using TerraScan, surface interpreted to mean vegetation, buildings, rocks, power poles, etc. According to Ionut Iordache, "The LAS point tiles are classified for ground and vegetation. I have used your thresholds [Suzanne Anderson's definition of thresholds] of 2-9m for medium vegetation. But please be aware that this kind of classification does not take into account the structure of the tree, meaning that trees taller than 9m will most likely be defined by points that belong to all 3 classes, with only the top most points being part of the "large vegetation" class. For example, this [using] is a 2m wide profile through the point cloud, color-coded by class type: orange = ground, white = unclassified, light blue = low veg (just a few points visible, right below the bulk of the canopy, 0.5-2.0m above ground), green = medium veg (2.0 - 9.0m above ground), dark green = high veg (> 9.0m above ground). I have used 0.5m as a starting value for the veg classes because the ground classification algorithm is minimum-elevation biased and the interface between ground and non-ground points is not very cleanly defined, especially under canopy. The classification codes used in the LAS files are these: 1 - unclassified, 2 - ground, 3 - low veg, 4 - medium veg, 5 - high veg, 7 - low point (outliers), 9 - high aerial point (outliers >80m above ground), and 10 - isolated points (outliers)." Terrascan processing produced 1,000m x 1,000m tiles named using UTM coordinate values. Use tile index maps to determine location of particular tiles. Initial processing was done by Ionut Iordache and later processing of the Gordon Gulch area was done by Abhinav Singhania.
- Source_Used_Citation_Abbreviation: NCALM, LiDAR data strip LAS files, 2010
- Source_Produced_Citation_Abbreviation: NCALM, LAS bare-earth and surface, 2011
- Process_Contact:
-
- Contact_Information:
-
- Contact_Person_Primary:
-
- Contact_Person: Ionut Iordache and Abhinav Singhania
- Contact_Organization:
-
National Center for Airborne Laser Mapping (NCALM), University of California Berkeley
- Contact_Address:
-
- Address_Type: mailing address
- Address: Department of Earth & Planetary Science
- Address: 277 McCone Hall
- City: Berkeley
- State_or_Province: CA
- Postal_Code: 94720
- Country: USA
- Contact_Voice_Telephone: 510-642-3991
- Process_Step:
-
- Process_Description:
-
For more details see BcCZO_2010_Project_Report.pdf. Terrascan LAS-formated 1 km^2 tiles, both ground (DTM) and non-ground (DSM), were input for interpolation using kriging into Golden Software's Surfer vs 8. Kriged DEMS were output to 1 m posting ESRI GRID-formated DEMs and hillshades and mosaiced from tiles to final output area using Python and Arc Macro Language (AML) scripts. Initial processing was done by Ionut Iordache and later processing of the Gordon Gulch area and then mosaicing into the former dataset was done by Abhinav Singhania.
- Source_Used_Citation_Abbreviation: NCALM, LAS bare-earth and surface, 2011
- Source_Produced_Citation_Abbreviation: NCALM, DEM and hillshades, 2011
- Process_Contact:
-
- Contact_Information:
-
- Contact_Person_Primary:
-
- Contact_Person: Ionut Iordache and Abhinav Singhania
- Contact_Organization:
-
National Center for Airborne Laser Mapping (NCALM), University of California Berkeley
- Contact_Address:
-
- Address_Type: mailing address
- Address: Department of Earth & Planetary Science
- Address: 277 McCone Hall
- City: Berkeley
- State_or_Province: CA
- Postal_Code: 94720
- Country: USA
- Contact_Voice_Telephone: 510-642-3991
- Process_Step:
-
- Process_Description:
-
The QA/QC report includes the quality of pre-processed Lidar data produced by NCALM. Areas of quality covered by this document include completeness of the LiDAR data compared to the proposed study area (Area), the average points per square meter for each tile (Point Density), detailed point density of the entire site (Detailed Point Density), overall point return intensity of the site (Intensity), visual inspection of the hillshade digital elevation model (Hillshade) and the attributes included in the Lidar data.
- Source_Used_Citation_Abbreviation: NCALM, LAS bare-earth and surface, 2011
- Source_Produced_Citation_Abbreviation: Uni of CA, Merced, QA/QC Report, 2011
- Process_Contact:
-
- Contact_Information:
-
- Contact_Organization_Primary:
-
- Contact_Organization: Spatial Analysis Lab
- Contact_Address:
-
- Address_Type: mailing address
- Address: University of California, Merced
- Address: School of Engineering
- Address: Facilities Services Building
- Address: 5200 N. Lake Road
- City: Merced
- State_or_Province: CA
- Postal_Code: 95343
- Country: USA
- Contact_Voice_Telephone: 209-228-4411
- Contact_Facsimile_Telephone: 209-228-4047
- Contact_Electronic_Mail_Address: engineering@ucmerced.edu
- Process_Step:
-
- Process_Description:
-
NCALM data and reports were downloaded and quality-checked by Eric Parrish, Melissa Foster and Abby Langston. Eric coordinated with NCALM staff to obtain corrected data when the Gordon Gulch area was found to be missing. Eric checked data extent and LAS tiles, DEMs and hillshades to be sure that all data was included and that data values looked correct. Eric also added the data to the CZO website for download by scientists and other data-users. Eric organized and managed the dataset so that it could be finalized by INSTAAR staff.
- Source_Used_Citation_Abbreviation: NCALM, DEM and hillshades, 2011
- Source_Used_Citation_Abbreviation: NCALM, LAS bare-earth and surface, 2011
- Source_Produced_Citation_Abbreviation: INSTAAR, project management, 2011
- Process_Contact:
-
- Contact_Information:
-
- Contact_Person_Primary:
-
- Contact_Person:
-
Eric Parrish, Melissa Foster (PhD candidate) and Abby Langston (Master Student)
- Contact_Organization:
-
University of Colorado, Institute of Arctic and Alpine Research (INSTAAR)
- Contact_Position: GIS and Graphics Specialist
- Contact_Address:
-
- Address_Type: mailing address
- Address: UCB 450
- City: Boulder
- State_or_Province: CO
- Postal_Code: 80309-0450
- Country: USA
- Process_Step:
-
- Process_Description:
-
Chi Yang collected all of the data organized by Eric and input it into the CZO database. Chi also created point text files of the LAS tiles, which Eric used to create point shapefiles of the LAS point cloud files.
- Source_Used_Citation_Abbreviation: INSTAAR, project management, 2011
- Source_Used_Citation_Abbreviation: NCALM, LAS bare-earth and surface, 2011
- Source_Produced_Citation_Abbreviation: INSTAAR, data management, 2012
- Process_Contact:
-
- Contact_Information:
-
- Contact_Person_Primary:
-
- Contact_Person: Chi Yang
- Contact_Organization:
-
University of Colorado, Institute of Arctic and Alpine Research (INSTAAR)
- Contact_Position: Data Manager
- Contact_Address:
-
- Address_Type: mailing address
- Address: UCB 450
- City: Boulder
- State_or_Province: CO
- Postal_Code: 80309-0450
- Country: USA
- Process_Step:
-
- Process_Description:
-
Leanne Lestak created value added layers and metadata using ArcMap and ArcCatalog; GeoTIFF DSMs, DTMs, hillshades, index shapefiles and FGDC metadata in .html, .xml and .txt formats. The geoTIF standard is more readily recognized by software packages and easier to use than ESRI GRID-formated files. Leanne organized the data for ease-of-use and fully documented all files with FGDC standard metadata. DSMs are composed of 4 tiles, labelled by area served, bld = Boulder, bt = Betasso, gg = Gordon Gulch and glc = Green Lakes Valley. The DTM is one IMAGINE file. Hillshades follow DSM and DTM tiling schema. Leanne worked with Chris Crosby, the Open Topography project manager to facilitate posting of the data to Open Topograhphy.
- Source_Used_Citation_Abbreviation: INSTAAR, data management, 2011
- Source_Used_Citation_Abbreviation: NCALM, LAS bare-earth and surface, 2011
- Source_Produced_Citation_Abbreviation:
-
INSTAAR, GeoTIFF DEMs, Hillshades, index files and FGDC metadata, 2012
- Process_Contact:
-
- Contact_Information:
-
- Contact_Person_Primary:
-
- Contact_Person: Leanne Lestak
- Contact_Organization:
-
University of Colorado, Institute of Arctic and Alpine Research (INSTAAR)
- Contact_Position: GIS/Remote Sensing Specialist
- Contact_Address:
-
- Address_Type: mailing address
- Address: UCB 450
- City: Boulder
- State_or_Province: CO
- Postal_Code: 80309-0450
- Country: USA
- Spatial_Data_Organization_Information:
-
- Direct_Spatial_Reference_Method: Raster
- Raster_Object_Information:
-
- Raster_Object_Type: Pixel
- Row_Count: 13,000 approx.
- Column_Count: 18,000 approx.
- Vertical_Count: 1
- Spatial_Reference_Information:
-
- Horizontal_Coordinate_System_Definition:
-
- Planar:
-
- Grid_Coordinate_System:
-
- Grid_Coordinate_System_Name: Universal Transverse Mercator
- Universal_Transverse_Mercator:
-
- UTM_Zone_Number: 13
- Transverse_Mercator:
-
- Scale_Factor_at_Central_Meridian: 0.999600
- Longitude_of_Central_Meridian: -105.000000
- Latitude_of_Projection_Origin: 0.000000
- False_Easting: 500000.000000
- False_Northing: 0.000000
- Planar_Coordinate_Information:
-
- Planar_Coordinate_Encoding_Method: row and column
- Coordinate_Representation:
-
- Abscissa_Resolution: 1.000000
- Ordinate_Resolution: 1.000000
- Planar_Distance_Units: meters
- Geodetic_Model:
-
- Horizontal_Datum_Name: North American Datum of 1983 (CORS96)
- Ellipsoid_Name: Geodetic Reference System 80
- Semi-major_Axis: 6378137.000000
- Denominator_of_Flattening_Ratio: 298.257222
- Vertical_Coordinate_System_Definition:
-
- Altitude_System_Definition:
-
- Altitude_Datum_Name: North American Vertical Datum of 1988 (GEOID03)
- Altitude_Distance_Units: meters
- Altitude_Encoding_Method: Implicit coordinate
- Entity_and_Attribute_Information:
-
- Detailed_Description:
-
- Entity_Type:
-
- Entity_Type_Label: Band_1
- Entity_Type_Definition: Elevation
- Entity_Type_Definition_Source: University of Colorado, INSTAAR
- Attribute:
-
- Attribute_Label: Value
- Attribute_Definition: Values that represent elevation, ground and non-ground
- Attribute_Definition_Source: University of Colorado, INSTAAR
- Attribute_Domain_Values:
-
- Range_Domain:
-
- Range_Domain_Minimum: 1576
- Range_Domain_Maximum: 4548
- Attribute_Units_of_Measure: meters
- Attribute_Measurement_Resolution: 1
- Beginning_Date_of_Attribute_Values: 20100821
- Ending_Date_of_Attribute_Values: 20100826
- Attribute:
-
- Attribute_Label: Value
- Attribute:
-
- Attribute_Label: Count
- Distribution_Information:
-
- Distributor:
-
- Contact_Information:
-
- Contact_Organization_Primary:
-
- Contact_Organization:
-
Open Topography Facility, San Diego Supercomputer Center, University of California, San Diego
- Contact_Address:
-
- Address_Type: mailing and physical address
- Address: 9500 Gilman Drive, MC 0505
- City: La Jolla
- State_or_Province: California
- Postal_Code: 92093-0505
- Country: USA
- Contact_Instructions: www.opentopography.org
- Resource_Description: Downloadable Data
- Standard_Order_Process:
-
- Digital_Form:
-
- Digital_Transfer_Information:
-
- Format_Name: TIFF
- Format_Version_Number: 1
- Format_Specification: Digital File
- Format_Information_Content: Digital Elevation Models
- File_Decompression_Technique: no compression applied
- Transfer_Size: 1 GB
- Digital_Transfer_Option:
-
- Online_Option:
-
- Computer_Contact_Information:
-
- Network_Address:
-
- Network_Resource_Name: www.opentopography.org
- Available_Time_Period:
-
- Time_Period_Information:
-
- Range_of_Dates/Times:
-
- Beginning_Date: 20100821
- Beginning_Time: 15:12:27 GMT
- Ending_Date: 20100826
- Ending_Time: 00:01:10 GMT
- Metadata_Reference_Information:
-
- Metadata_Date: 20120308
- Metadata_Contact:
-
- Contact_Information:
-
- Contact_Person_Primary:
-
- Contact_Person: Leanne Lestak
- Contact_Organization:
-
University of Colorado, Institute of Arctic Research and Alpine Research (INSTAAR)
- Contact_Position: Research Assistant
- Contact_Address:
-
- Address_Type: mailing address
- Address: UCB 450
- City: Boulder
- State_or_Province: Colorado
- Postal_Code: 80309-0450
- Country: USA
- Contact_Electronic_Mail_Address: Leanne.Lestak@colorado.edu
- Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata
- Metadata_Standard_Version: FGDC-STD-001-1998
- Metadata_Time_Convention: local time
- Metadata_Extensions:
-
- Online_Linkage: <http://www.esri.com/metadata/esriprof80.html>
- Profile_Name: ESRI Metadata Profile
Generated by mp version 2.9.6 on Thu Mar 08 17:13:14 2012