CORSICA_CLRHSHD.TIF: Color-Hillshade Relief GeoTIFF Image of the Corsica River Estuary Area (UTM, Zone 18, NAD83)

Metadata also available as - [Questions & Answers] - [Parseable text]

Metadata:

Identification_Information:
Citation:
Citation_Information:
Originator: VeeAnn A. Cross
Publication_Date: 2011
Title:
CORSICA_CLRHSHD.TIF: Color-Hillshade Relief GeoTIFF Image of the Corsica River Estuary Area (UTM, Zone 18, NAD83)
Geospatial_Data_Presentation_Form: remote-sensing image
Series_Information:
Series_Name: Open-File Report
Issue_Identification: 2010-1094
Publication_Information:
Publication_Place: Woods Hole Coastal and Marine Science Center, Woods Hole, MA
Publisher: U.S. Geological Survey, Coastal and Marine Geology Program
Online_Linkage:
<https://pubs.usgs.gov/of/2010/1094/html/data/basemap/corsica_clrhshd.zip>
Online_Linkage: <https://pubs.usgs.gov/of/2010/1094/html/catalog.html>
Larger_Work_Citation:
Citation_Information:
Originator: VeeAnn A. Cross
Originator: John F. Bratton
Originator: Charles R. Worley
Originator: John Crusius
Originator: Kevin D. Kroeger
Publication_Date: 2011
Title:
Continuous resistivity profiling data from the Corsica River Estuary, Maryland
Edition: version 1
Series_Information:
Series_Name: Open-File Report
Issue_Identification: 2010-1094
Publication_Information:
Publication_Place: Woods Hole Coastal and Marine Science Center, Woods Hole, MA
Publisher: U.S. Geological Survey, Coastal and Marine Geology Program
Online_Linkage: <https://pubs.usgs.gov/of/2010/1094/>
Description:
Abstract:
Submarine groundwater discharge (SGD) into Maryland's Corsica River Estuary was investigated as part of a larger study to determine the importance of nutrient delivery to Chesapeake Bay via this pathway. Resource managers are concerned about nutrients that are entering the estuary via submarine groundwater discharge from this primarily agricultural watershed that may be contributing to eutrophication, harmful algal blooms, and fish kills. An interdisciplinary U.S. Geological Survey (USGS) science team conducted field operations in the estuary in April and May 2007. Techniques used included continuous resistivity profiling (CRP), piezometer sampling, seepage meter measurements, and collection of a radon tracer time series. Better understanding of the style, locations, and rates of groundwater discharge could lead to improved models and mitigation strategies for estuarine nutrient over-enrichment in the Corsica River Estuary, and other similar settings. More information on the field work can be accessed from the Woods Hole Coastal and Marine Science Center Field Activity webpage: <http://quashnet.er.usgs.gov/data/2007/07005/>
Purpose:
The purpose of this dataset is to provide the color-hillshade relief image of the Corsica River Estuary area in GeoTIFF format (UTM zone 18, NAD83) that can be viewed by a variety of software programs.
Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 2011
Currentness_Reference: publication date
Status:
Progress: Complete
Maintenance_and_Update_Frequency: None planned
Spatial_Domain:
Bounding_Coordinates:
West_Bounding_Coordinate: -76.160718
East_Bounding_Coordinate: -76.060537
North_Bounding_Coordinate: 39.121622
South_Bounding_Coordinate: 39.034459
Keywords:
Theme:
Theme_Keyword_Thesaurus: General
Theme_Keyword: U.S. Geological Survey
Theme_Keyword: USGS
Theme_Keyword: Coastal and Marine Geology Program
Theme_Keyword: CMGP
Theme_Keyword: Woods Hole Coastal and Marine Science Center
Theme_Keyword: WHCMSC
Theme_Keyword: bathymetry
Theme_Keyword: NOAA's Ocean Service, Special Projects
Theme_Keyword: hydrographic survey
Theme_Keyword: estuary
Theme_Keyword: estuarine bathymetry
Theme_Keyword: elevation
Theme_Keyword: digital elevation model
Theme_Keyword: DEM
Theme_Keyword: raster
Theme_Keyword: National Elevation Dataset
Theme_Keyword: NED
Theme_Keyword: Light Detection And Range
Theme_Keyword: LIDAR
Theme_Keyword: NOAA Coastal Services Center
Theme_Keyword: color-hillshade relief
Theme_Keyword: GeoTIFF
Theme_Keyword: National Oceanic and Atmospneric Administration
Theme:
Theme_Keyword_Thesaurus: ISO 19115 Topic Category
Theme_Keyword: inlandWaters
Theme_Keyword: oceans
Theme_Keyword: oceans and estuaries
Theme_Keyword: oceans and coastal
Theme_Keyword: imageryBaseMapsEarthCover
Place:
Place_Keyword_Thesaurus: General
Place_Keyword: North America
Place_Keyword: North Atlantic
Place_Keyword: United States
Place_Keyword: Maryland
Place_Keyword: Corsica River Estuary
Place_Keyword: Chesapeake Bay
Access_Constraints: None.
Use_Constraints:
The public domain data from the U.S. Government are freely redistributable with proper metadata and source attribution. Please recognize the U.S. Geological Survey and the National Oceanic and Atmospheric Administration (NOAA) National Ocean Service (NOS) as the originators of the individual datasets. These data are not to be used for navigation.
Point_of_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: VeeAnn A. Cross
Contact_Organization: U.S. Geological Survey
Contact_Position: Marine Geologist
Contact_Address:
Address_Type: mailing and physical address
Address: Woods Hole Coastal and Marine Science Center
Address: 384 Woods Hole Rd.
City: Woods Hole
State_or_Province: MA
Postal_Code: 02543-1598
Contact_Voice_Telephone: (508) 548-8700 x2251
Contact_Facsimile_Telephone: (508) 457-2310
Contact_Electronic_Mail_Address: vatnipp@usgs.gov
Browse_Graphic:
Browse_Graphic_File_Name:
<https://pubs.usgs.gov/of/2010/1094/data/basemap/corsica_clrhshd.gif>
Browse_Graphic_File_Description:
Thumbnail image of the color-hillshade relief image from the Corsica River Estuary area.
Browse_Graphic_File_Type: GIF
Native_Data_Set_Environment:
Microsoft Windows XP Version 5.1 (Build 2600) Service Pack 3; ESRI ArcCatalog 9.2.6.1500
Cross_Reference:
Citation_Information:
Originator:
Department of Commerce (DOC), National Oceanic and Atmospheric Administration (NOAA), National Ocean Service (NOS), Special Projects (SP)
Publication_Date: 1998
Title:
Chesapeake Bay, VA/MD (M130) Bathymetric Digital Elevation Model (30 meter resolution) Derived From Source Hydrographic Survey Soundings Collected by NOAA
Geospatial_Data_Presentation_Form: raster digital data
Publication_Information:
Publication_Place: Silver Spring, MD
Publisher: NOAA's Ocean Service, Special Projects (SP)
Online_Linkage: <http://estuarinebathymetry.noaa.gov/>
Cross_Reference:
Citation_Information:
Originator: U.S. Geological Survey (USGS), EROS Data Center
Publication_Date: 1999
Title: National Elevation Dataset
Geospatial_Data_Presentation_Form: raster digital data
Publication_Information:
Publication_Place: Sioux Falls, SD
Publisher: U.S. Geological Survey
Online_Linkage: <http://ned.usgs.gov/>
Online_Linkage: <http://seamless.usgs.gov/>
Cross_Reference:
Citation_Information:
Originator: NOAA Coastal Services Center Coastal Remote Sensing Program
Publication_Date: 20070613
Title: 2003 Maryland LIDAR mapping project
Geospatial_Data_Presentation_Form: raster digital data
Other_Citation_Details: Time period of content is 20030301 to 20031130
Online_Linkage: <http://www.csc.noaa.gov/ldart>
Online_Linkage: <http://www.csc.noaa.gov/lidar>
Data_Quality_Information:
Logical_Consistency_Report:
The individual datasets making up this combined dataset were not scrutinized for errors.
Completeness_Report:
This dataset represents the complete elevation information for the area of interest in GeoTIFF format.
Positional_Accuracy:
Horizontal_Positional_Accuracy:
Horizontal_Positional_Accuracy_Report:
This image is a combination of three different datasets with three different horizontal accuracies. For the LIDAR data, the metadata reports the horizontal accuracy as "The horizontal coordinate values were designed to meet NSSDA accuracy for data at 1:2400 scale." The metadata for the NED elevation data does not specify a horizontal accuracy. The Chesapeake Estuarine bathymetry dataset metadata reports the horizontal accuracy as "The horizontal accuracy of the DEM is expressed as an estimated root mean square error (RMSE). The estimate of the RMSE is based upon horizontal accuracy tests of the source soundings used to generate the DEM. As a first approximation the locational accuracy of the source soundings are 0.0015 m at source "Smooth Sheet" scale (120 m @ 1:80,000 to 15 m @ 1:10,000). Smooth Sheets are maps generated as a principle product of each (historic) hydrographic survey with fully corrected soundings plotted on them. Digital elevation models comply with the National Map Accuracy Standards (NMAS) accuracy requirements. The positional accuracy is estimated at 3 meters."
Vertical_Positional_Accuracy:
Vertical_Positional_Accuracy_Report:
This image is a combination of three different datasets with three different vertical accuracies. For the LIDAR data, the metadata reports the vertical accuracy as "The RMSE value of 14.3 cm at the 95% confidence level was determined by an independent accuracy assessment conducted by Dewberry LLC according to the contract specifications. These specifications followed FEMA Appendix A guidelines regarding assessing vertical accuracy. For data accurate to within 18.5 cm RMSE, the guidelines recommended a minimum of 20 independent check points be located in each of 5 different land cover categories: Grass/Ground, High Grass/Crops, Brush/Low Trees, Forest, and Urban/Pavement. A total of 125 points were used for the assessments. These points were surveyed by a licensed land surveyor and provided a positional location and elevation with an accuracy that exceeded the predicted accuracy of the LIDAR data. The entire accuracy reports can be found at <http://dnrweb.dnr.state.md.us/gis/data/lidar>. The RMSE value is 14.3 cm. See the Vertical Positional Accuracy Report section for more information." The metadata for the NED elevation data does not specify a vertical accuracy. The Chesapeake Estuarine bathymetry dataset metadata reports the vertical accuracy as "The vertical RMSE statistic is used to describe the vertical accuracy of a DEM. It encompasses both random and systematic errors introduced during production of the data. The RMSE is encoded in element number 5 of record C of the DEM. This accuracy estimate includes components related to quantization of the source soundings (1.3 to 0.15 m), the systematic editing of the source data (1percentor 0.10m), un-sampled bathymetric features (estimated at less than 5percentof depth), time related changes (erosion, deposition, and seismic shifts), and dredging operations (cut and fill). It is estimated that the accuracy of the Bathymetric DEMs is 2 percent of depth or 1 meter for depths grater than 20 meters and 2 percent of depth or 0.20 meters for depths shallower than 20 meters. THESE DEMs SHOULD NOT BE USED FOR NAVIGATION. There are three types of DEM vertical errors: blunder, systematic, and random. These errors are reduced in magnitude by editing but cannot be completely eliminated. Blunders are errors of major proportions and are easily identified and removed during interactive editing. Systematic errors follow some fixed pattern and are introduced by data collection procedures and systems. Systematic error artifacts include vertical unsampled elevation shifts, relative spacing of the source soundings, misinterpretation of terrain surface caused by softness or poor reflectivity and by the resolution of the collected soundings (feet, feet and fractions, fathoms, fathoms and fractions, meters, tenths of meters etc.). Random errors result from unknown or accidental causes. The 1 degree (DSQ) DEMs are generated from 30 m grids on UTM projection. The RMSE difference between these surfaces is an estimate of the vertical accuracy of the DSQ DEMs."
Lineage:
Process_Step:
Process_Description:
Output the colormap used with the elevation dataset from ArcMap 9.2. To do this, used VACExtras 2.1 - VACExtras - Raster - Import or Export to GMTraster legend. I selected the option to export, chose the combelev as the raster theme (with the legend displayed in the colors of choice as a classified legend), and output the results to the file corsical_elev.cpt. This process step and all subsequent process steps were carried out by the same person - VeeAnn A. Cross. The original elevation dataset and the metadata for how that grid was generated are available from the basemap section at <https://pubs.usgs.gov/of/2010/1094/html/catalog.html>.
Source_Used_Citation_Abbreviation: combelev
Process_Date: 200911
Source_Produced_Citation_Abbreviation: corsical_elev.cpt
Process_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: VeeAnn A. Cross
Contact_Organization: U.S. Geological Survey
Contact_Position: Marine Geologist
Contact_Address:
Address_Type: mailing and physical address
Address: Woods Hole Coastal and Marine Science Center
Address: 384 Woods Hole Rd.
City: Woods Hole
State_or_Province: MA
Postal_Code: 02543-1598
Contact_Voice_Telephone: (508) 548-8700 x2251
Contact_Facsimile_Telephone: (508) 457-2310
Contact_Electronic_Mail_Address: vatnipp@usgs.gov
Process_Step:
Process_Description:
Used Mirone version 1.4.0 standalone software to read the binary grid (combelev). Loaded the color map using Image - Color Palettes - Change color palette. Then File - Read GMT Palette - Use Z-levels. At this point I can load the cpt file with the colormap information in it. Then used the Shaded Illumination button - GMT grdgradient - option 2 (Lambertian) and set the Azimuth to 315 and the Elevation to 30. And finally saved the image as a GeoTIFF - corsica_clrhshd.tif under File - Save Image as - GeoTIFF. This opens another window, in which I check the box "Preserve Image original size".
Source_Used_Citation_Abbreviation: combelev
Source_Used_Citation_Abbreviation: corsical_elev.cpt
Process_Date: 200911
Source_Produced_Citation_Abbreviation: corsica_clrhshd.tif
Process_Step:
Process_Description:
Used GeoTIFFExamine to write the GeoTIFF header information to a TIFF world file.
Source_Used_Citation_Abbreviation: corsica_clrhshd.tif
Process_Date: 200911
Source_Produced_Citation_Abbreviation: corsica_clrhshd.tfw
Process_Step:
Process_Description:
Upon initial display in ArcMap 9.2, the colors weren't what were expected. So I opened the TIFF image in Adobe Photoshop CS3 and resaved the TIFF with no compression, Pixel Order interleaved, and IBM PC byte order. This seemed to resolve the color display issues.
Source_Used_Citation_Abbreviation: corsica_clrhshd.tif
Process_Date: 201004
Source_Produced_Citation_Abbreviation: corsica_clrhshd.tif
Process_Step:
Process_Description:
Using Photoshop to resave the TIFF image had the effect of deleting the spatial referencing information in the header of the file. So I used GeoTIFFExamine to read the world file information back into the header of the image making the image a GeoTIFF.
Source_Used_Citation_Abbreviation: corsica_clrhshd.tfw
Process_Date: 201004
Source_Produced_Citation_Abbreviation: corsica_clrhshd.tif
Process_Step:
Process_Description:
Then defined the projection using ArcMap 9.2 - ArcToolbox - Data Management Tools - Projections and Transformations - Define Projection. This creates the aux file that ArcGIS reads with the complete projection parameters. The tool parameters: input: corsica_clrhshd.tif; coordinate system: NAD_1983_UTM_Zone18N
Source_Used_Citation_Abbreviation: corsica_clrhshd.tif
Process_Date: 201004
Source_Produced_Citation_Abbreviation: corsica_clrhshd.aux
Spatial_Data_Organization_Information:
Direct_Spatial_Reference_Method: Raster
Raster_Object_Information:
Raster_Object_Type: Pixel
Row_Count: 319
Column_Count: 285
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: 18
Transverse_Mercator:
Scale_Factor_at_Central_Meridian: 0.999600
Longitude_of_Central_Meridian: -75.000000
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: 30.000000
Ordinate_Resolution: 30.000000
Planar_Distance_Units: meters
Geodetic_Model:
Horizontal_Datum_Name: North American Datum of 1983
Ellipsoid_Name: Geodetic Reference System 80
Semi-major_Axis: 6378137.000000
Denominator_of_Flattening_Ratio: 298.257222
Entity_and_Attribute_Information:
Overview_Description:
Entity_and_Attribute_Overview:
There are no attributes associated with the GeoTIFF image. Pixel values convey RGB values of individual cells. The shades of blue represent underwater bathymetry areas while the tans and greens are land elevation areas.
Distribution_Information:
Distributor:
Contact_Information:
Contact_Person_Primary:
Contact_Person: VeeAnn A. Cross
Contact_Organization: U.S. Geological Survey
Contact_Position: Marine Geologist
Contact_Address:
Address_Type: mailing and physical address
Address: Woods Hole Coastal and Marine Science Center
Address: 384 Woods Hole Rd.
City: Woods Hole
State_or_Province: MA
Postal_Code: 02543-1598
Contact_Voice_Telephone: (508) 548-8700 x2251
Contact_Facsimile_Telephone: (508) 457-2310
Contact_Electronic_Mail_Address: vatnipp@usgs.gov
Resource_Description: Downloadable Data
Distribution_Liability:
Neither the U.S. government, the Department of the Interior, nor the USGS, nor any of their employees, contractors, or subcontractors, make any warranty, express or implied, nor assume any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed, nor represent that its use would not infringe on privately owned rights. The act of distribution shall not constitute any such warranty, and no responsibility is assumed by the USGS in the use of these data or related materials. Any use of trade, product, or firm names is for descriptive purposes only and does not imply endorsement by the U.S. Government.
Standard_Order_Process:
Digital_Form:
Digital_Transfer_Information:
Format_Name: WinZip
Format_Version_Number: 9.0
Format_Information_Content:
This WinZip file contains the color-hillshade relief GeoTIFF image, the TIFF world file, and the associated metadata files.
Transfer_Size: 0.300 MB
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Network_Resource_Name: <https://pubs.usgs.gov/of/2010/1094/html/catalog.html>
Network_Resource_Name:
<https://pubs.usgs.gov/of/2010/1094/data/basemap/corsica_clrhshd.zip>
Offline_Option:
Offline_Media: DVD-ROM
Recording_Capacity:
Recording_Density: 4.75
Recording_Density_Units: GBytes
Recording_Format: UDF
Fees: none
Technical_Prerequisites:
This WinZip contains a GeoTIFF image and an accompanying world file. The user must have software capable of uncompressing the WinZip file. To simply view the image, any software capable of reading a TIFF file is sufficient. To view the image in its geospatial location, the user must have software that is either capable of reading the header information in the GeoTIFF, or alternatively reading the registration information in the TIFF world file.
Metadata_Reference_Information:
Metadata_Date: 20110307
Metadata_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: VeeAnn A. Cross
Contact_Organization: U.S. Geological Survey
Contact_Position: Marine Geologist
Contact_Address:
Address_Type: mailing and physical address
Address: Woods Hole Coastal and Marine Science Center
Address: 384 Woods Hole Rd.
City: Woods Hole
State_or_Province: MA
Postal_Code: 02543-1598
Contact_Voice_Telephone: (508) 548-8700 x2251
Contact_Facsimile_Telephone: (508) 457-2310
Contact_Electronic_Mail_Address: vatnipp@usgs.gov
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 Mon Mar 07 14:04:26 2011