Plumes for sediment delivered from watersheds draining into the Caribbean Sea and Gulf of Mexico

Metadata also available as

Metadata:

Identification_Information:

Citation:

Citation_Information:

Originator: World Resources Institute

Publication_Date: 2004

Title:

Plumes for sediment delivered from watersheds draining into the Caribbean Sea and Gulf of Mexico

Geospatial_Data_Presentation_Form: raster digital data

Series_Information:

Series_Name: Reefs at Risk in the Caribbean

Publication_Information:

Publication_Place: Washington D.C., United States
Publisher: World Resources Institute

Online_Linkage: <http://reefsatrisk.wri.org>

Larger_Work_Citation:

Citation_Information:

Title:: L. Burke and J. Maidens “Reefs at Risk in the Caribbean,” (Washington DC, USA: World Resources Institute, 2004)

Description:

Purpose:: This data set was derived at the World Resources Institute for input to the Reefs at Risk sedimentation and pollution from watershed based sources threat analysis. Agriculture, though important to economic development and food security, is a source of increased sediment, nutrient, and pesticide runoff. Threats from sedimentation and pollution from inland sources were modeled for over 3,000 watersheds discharging into the Caribbean. The indicators developed by the Reefs at Risk in the Caribbean project enable detailed comparative analyses of threats on many scales. The Reefs at Risk indicators are a simplification of human activities and complex natural processes.

Time_Period_of_Content:

Time_Period_Information:

Single_Date/Time:

Calendar_Date: unknown

Currentness_Reference: publication date

Status:

Progress: Complete
Maintenance_and_Update_Frequency: None planned

Spatial_Domain:

Bounding_Coordinates:

West_Bounding_Coordinate: -97.882760
East_Bounding_Coordinate: -53.352923
North_Bounding_Coordinate: 34.763803
South_Bounding_Coordinate: 5.427068

Keywords:

Theme:

Theme_Keyword: threat
Theme_Keyword: coral reefs
Theme_Keyword: pressure
Theme_Keyword: sediment
Theme_Keyword: sedimentation
Theme_Keyword: watershed
Theme_Keyword: basin
Theme_Keyword: plume
Theme_Keyword: erosion
Theme_Keyword: preciptation
Theme_Keyword: soil
Theme_Keyword: slope
Theme_Keyword: erosion
Theme_Keyword: land cover

Place:

Place_Keyword: caribbean
Place_Keyword: central america
Place_Keyword: south america
Place_Keyword: north america
Place_Keyword: insular caribbean
Place_Keyword: gulf of mexico

Access_Constraints: None

Use_Constraints:

Data set is not for use in litigation. While efforts have been made to ensure that these data are accurate and reliable within the state of the art, WRI, cannot assume liability for any damages, or misrepresentations, caused by any inaccuracies in the data, or as a result of the data to be used on a particular system. WRI makes no warranty, expressed or implied, nor does the fact of distribution constitute such a warranty.

Point_of_Contact:

Contact_Information:

Contact_Person_Primary:

Contact_Person: GIS Lab Manager
Contact_Organization: World Resources Institute

Contact_Address:

Address_Type: mailing and physical address
Address: 10 G Street NE Suite 800
City: Washington DC
State_or_Province: District of Columbia
Postal_Code: 20002
Country: United States

Contact_Voice_Telephone: 202 729 7600

Contact_Facsimile_Telephone: 202 729 7775

Contact_Electronic_Mail_Address: reefsatrisk@wri.org

Hours_of_Service: 9am - 5pm EST

Native_Data_Set_Environment:

Microsoft Windows 2000 Version 5.0 (Build 2195) Service Pack 2; ESRI ArcCatalog 9.0.0.535

Data_Quality_Information:

Attribute_Accuracy:

Positional_Accuracy:

Horizontal_Positional_Accuracy:
Vertical_Positional_Accuracy:

Lineage:

Process_Step:

Process_Description:: The final step in the Reefs at Risk analysis for evaluating areas at risk from watershed-based sedimentation involves dispersing sediment from the river mouth. Using the programming language C, a plume estimation tool was created to evaluate the sediment delivery of all river mouths within 100 km, using a fixed distance-degrade function. For all 1 km grid cell locations, all river mouths within 100 km were considered. The sediment delivery at the river mouth estimate was reduced by 10 percent per km. For example, at 10 km from the river mouth, sediment is 35 percent of source; by 25 km, it is about 7 percent, and by 50 km it is about 0.5 percent.
Source_Used_Citation_Abbreviation:: World Resources Institute, Relative sediment delivery at the river mouth for watersheds draining into the Caribbean Sea and Gulf of Mexico, 2004

Spatial_Data_Organization_Information:

Direct_Spatial_Reference_Method: Raster

Raster_Object_Information:

Raster_Object_Type: Grid Cell
Row_Count: 3844
Column_Count: 5816
Vertical_Count: 1

Spatial_Reference_Information:

Horizontal_Coordinate_System_Definition:

Geographic:

Latitude_Resolution: 0.000000
Longitude_Resolution: 0.000000
Geographic_Coordinate_Units: Decimal degrees

Planar:

Planar_Coordinate_Information:

Planar_Coordinate_Encoding_Method: row and column

Coordinate_Representation:

Abscissa_Resolution: 1000.000000
Ordinate_Resolution: 1000.000000

Geodetic_Model:

Horizontal_Datum_Name: North American Datum of 1927
Ellipsoid_Name: Clarke 1866
Semi-major_Axis: 6378206.400000
Denominator_of_Flattening_Ratio: 294.978698

Entity_and_Attribute_Information:

Detailed_Description:

Entity_Type:

Entity_Type_Label: plume_int

Attribute:

Attribute_Label: ObjectID

Attribute_Definition: Internal feature number.

Attribute_Definition_Source: ESRI

Attribute_Domain_Values:

Unrepresentable_Domain:: Sequential unique whole numbers that are automatically generated.

Attribute:

Attribute_Label: Value
Attribute_Definition: cumulative, distance-degraded sediment delivery estimate

Attribute:

Attribute_Label: Count

Distribution_Information:

Resource_Description: Downloadable Data

Standard_Order_Process:

Digital_Form:

Digital_Transfer_Information:

Transfer_Size: 0.820

Metadata_Reference_Information:

Metadata_Date: 20041025

Metadata_Contact:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: World Resources Institute

Contact_Address:

Address_Type: 10 G Street, NE Suite # 800
City: Washington, DC
State_or_Province: District of Columbia
Postal_Code: 20002
Country: United States

Contact_Voice_Telephone: 202 729 7600

Contact_Facsimile_Telephone: 202 729 7775

Contact_Electronic_Mail_Address: reefsatrisk@wri.org

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 2.8.6 on Mon Oct 25 16:45:13 2004