Ability to Produce Clean and Abundant Water version 2 10_20_16

• Identification_Information
• Spatial_Data_Organization_Information
• Spatial_Reference_Information
• Entity_and_Attribute_Information
• Distribution_Information
• Distributor 1
• Distribution_Information
• Metadata_Reference_Information

Identification_Information:

Citation:

Citation_Information:

Originator:Abigail Weinberg, Open Space Institute, Director of Research

Publication_Date:20161001

Title:

Ability to Produce Clean and Abundant Water version 2 10_20_16

Geospatial_Data_Presentation_Form:vector digital data

Description:

Abstract:

In the original APCAW (v2) the Open Space Institute (OSI) sought to develop a metric to measure the relative capacity of small scale (HUC12) watersheds to produce clean surface and ground water. In 2014, two different HUC12-based metrics (i.e., “Ability to Produce Good Quality Surface Water” and “Ability to Produce Good Quality Ground Water”) were calculated and used by OSI to evaluate land protection projects. In 2015, OSI combined these two metrics into one metric that considers watershed conditions (e.g. land cover, terrain, and hydrology) and their effects on the abundance and quality of surface and ground water within a reasonably-sized watershed (i.e., HUC12 boundary). The revised index the APCAWv2 makes a number of changes to the original work, notably watershed boundaries are now based on the National Hydrography Dataset Plus version 2 Horizon Systems and EPA. The NHDplusv2 lateral drainage areas were originally defined by the USGS 1:100 k watershed boundaries. For more information on the spatial boundaries used in this analysis .

Purpose:

A number of map-based data sets (both primary and secondary) were downloaded and/or developed to support an evaluation of proposed land protection projects within the Delaware River Basin (DRB). Using these data sets, a number of landscape characteristics and metrics were derived that could subsequently be used to compare the relative merits of different parcels of land relative to: 1) watershed ability to produce clean, abundant water 2) site resource quality 3) site vulnerability Brief descriptions of the data sets are provided in the following sections. These data are designed to be used for planning purposes to identify stream catchments and their boundaries that by preserving will protect stream water flow .This work is supported by a grant from the William Penn Foundation administered by the Open Space Institute.

Time_Period_of_Content:

Time_Period_Information:

Range_of_Dates/Times:

Beginning_Date:20160929

Currentness_Reference:

Delaware River Watershed

Status:

Progress:Complete

Maintenance_and_Update_Frequency:None planned

Spatial_Domain:

Bounding_Coordinates:

West_Bounding_Coordinate:-76.440893

East_Bounding_Coordinate:-74.346809

North_Bounding_Coordinate:42.463220

South_Bounding_Coordinate:38.675886

Keywords:

Theme:

Theme_Keyword_Thesaurus:ISO 19115 Topic Categories

Theme_Keyword:environment

Theme_Keyword:geoscientificInformation

Theme_Keyword:inlandWaters

Theme_Keyword:planningCadastre

Theme:

Theme_Keyword_Thesaurus:None

Theme_Keyword:Ability to Produce Clean and Abundant Water

Theme_Keyword:Open Space Institute

Theme_Keyword:Penn State University

Theme_Keyword:Academy of Natural Sciences

Theme_Keyword:Drexel University

Theme_Keyword:Delaware River Watershed Initiative

Theme_Keyword:modified nested set index.

Access_Constraints:None

Use_Constraints:

The USER shall indemnify, save harmless, and, if requested, defend those parties involved with the development and distribution of this data, their officers, agents, and employees from and against any suits, claims, or actions for injury, death, or property damage arising out of the use of or any defect in the FILES or any accompanying documentation. Those parties involved with the development and distribution excluded any and all implied warranties, including warranties or merchantability and fitness for a particular purpose and makes no warranty or representation, either express or implied, with respect to the FILES or accompanying documentation, including its quality, performance, merchantability, or fitness for a particular purpose. The FILES and documentation are provided "as is" and the USER assumes the entire risk as to its quality and performance. Those parties involved with the development and distribution of this data will not be liable for any direct, indirect, special, incidental, or consequential damages arising out of the use or inability to use the FILES or any accompanying documentation.

Data_Set_Credit:

Open Space Institute, Penn State University, and Drexel University.

Native_Data_Set_Environment:

Microsoft Windows 7 Version 6.1 (Build 7601) Service Pack 1; Esri ArcGIS 10.2.0.3348

Spatial_Data_Organization_Information:

Direct_Spatial_Reference_Method:Vector

Point_and_Vector_Object_Information:

SDTS_Terms_Description:

SDTS_Point_and_Vector_Object_Type:GT-polygon composed of chains

Point_and_Vector_Object_Count:15641

Spatial_Reference_Information:

Horizontal_Coordinate_System_Definition:

Planar:

Map_Projection:

Map_Projection_Name:WGS 1984 UTM Zone 18N

Transverse_Mercator:

WGS 1984 UTM Zone 18N

Scale_Factor_at_Central_Meridian:0.9996

Longitude_of_Central_Meridian:-75.0

Latitude_of_Projection_Origin:0.0

False_Easting:500000.0

False_Northing:0.0

Planar_Coordinate_Information:

Planar_Coordinate_Encoding_Method:coordinate pair

Coordinate_Representation:

Abscissa_Resolution:0.000000002220024164500956

Ordinate_Resolution:0.000000002220024164500956

Planar_Distance_Units:meter

Geodetic_Model:

Horizontal_Datum_Name:D WGS 1984

Ellipsoid_Name:WGS 1984

Semi-major_Axis:6378137.0

Denominator_of_Flattening_Ratio:298.257223563

Entity_and_Attribute_Information:

Detailed_Description:

Entity_Type:

Entity_Type_Label:APCAW_10_20_16

Entity_Type_Definition:

na

Entity_Type_Definition_Source:

na

Attribute:

Attribute_Label:FID

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:Shape

Attribute_Definition:

Feature geometry.

Attribute_Definition_Source:

Esri

Attribute_Domain_Values:

Unrepresentable_Domain:

Coordinates defining the features.

Attribute:

Attribute_Label:nord

Attribute_Definition:

The discovery time from the depth first search of the stream network used to route stream flow.  

Attribute_Definition_Source:

Academy of Natural Sciences

Attribute:

Attribute_Label:gnis_name

Attribute_Definition:

 The name of the stream from the Geographic Names Information System (GNIS) defined by the U.S. board of geographic names

Attribute_Definition_Source:

U.S. board of geographic names

Attribute:

Attribute_Label:pforestwet

Attribute_Definition:

The percentage of each stream reach's land cover that is considered forested or wetland.  Land cover was defined using the NLCD 2011. The numerator was defined using the following codes (41,42,43,52,90,95). Note that code 51 only exists in Alaska and so therefore was not used within this analysis.

Attribute_Definition_Source:

NLCD 2011 http://www.mrlc.gov/nlcd06_leg.php

Attribute:

Attribute_Label:qpforestwe

Attribute_Definition:

The natural breaks of the pforestwet value, Natural breaks were obtained by using the kmeans function in the R program for Statistical Computing using the function callkmeans(pforestwe,5).

Attribute_Definition_Source:

R program for statistical computing

Attribute:

Attribute_Label:pripnatura

Attribute_Definition:

The percent natural areas within riparian  zones was calculated for each stream reach.  Land cover was defined using the NLCD 2011 data set. The numerator was defined using the  When GridCode not in (21,22,23,24,81,82).  Barren areas were considered natural land within this analysis as defined by NLCD grid code definition, "areas of bedrock, desert pavement, scarps, talus, slides, volcanic material, glacial debris, sand dunes, strip mines, gravel pits and other accumulations of earthen material.  Riparian areas were defined using a grid representation of the Active River Area expanded to include smaller streams. Refer to "DESCRIPTION OF GIS DATA SETS AND DERIVED MAP-BASED PRODUCTS USED TO SUPPORT EVALUATION OF CANDIDATE LAND PROTECTION PROJECTS IN THE DELAWARE RIVER BASIN" for a more complete description on how this grid layer was created.

Attribute_Definition_Source:

NLCD Land Cover Data.

Attribute:

Attribute_Label:qpripnatur

Attribute_Definition:

The natural breaks of the qpripnatur value, Natural breaks were obtained by using the kmeans function in the R program for Statistical Computing using kmeans (qpripnatur,5).

Attribute_Definition_Source:

R program for Statistical Computing

Attribute:

Attribute_Label:aerosionpo

Attribute_Definition:

An index for the erosion potential of NHD plus catchment regions was created by merging an erosion potential grid with the spatial boundaries of the NHD plus catchment. To more easily identify areas prone to surface erosion, a new grid was developed that is essentially a combination of the 30m slope grid and soil erodibility (k-factor) data from the detailed soils (SSURGO) data set. The procedure used to create this grid was based on the methodology utilized by the New Jersey Water Supply Authority (Zhang, 2009). 

Attribute_Definition_Source:

http://www.osiny.org/site/DocServer/Data_Documentation_Report_0505_FINAL.pdf?docID=13741

Attribute:

Attribute_Label:qaerosionp

Attribute_Definition:

The natural breaks of the erosion potential value, Natural breaks were obtained by using the kmeans function in the R program for Statistical Computing using kmeans(qaerosionp,5).  Erosion potential was ranked in the opposite order of the other indicators higher numbers equated to a lower APCAW score.

Attribute_Definition_Source:

R program for statistical computing 

Attribute:

Attribute_Label:sgwrecharg

Attribute_Definition:

A representation showing groundwater recharge rates fur HUC12 boundaries was originally created by using the Mapsheds modelling software package.  These results were merged into HUC12 boundaries using a spatial join between the HUC12 and the NHD plus catchments boundaries using an area weighted approach.

Attribute_Definition_Source:

http://www.osiny.org/site/DocServer/Data_Documentation_Report_0505_FINAL.pdf?docID=13741

Attribute:

Attribute_Label:qsgwrechar

Attribute_Definition:

The natural breaks of the groundwater recharge value, Natural breaks were obtained by using the kmeans function in the R program for Statistical Computing using kmeans(qsgwrechar,5).

Attribute_Definition_Source:

R program for Statistical Computing

Attribute:

Attribute_Label:pheadwater

Attribute_Definition:

Headwater streams were identified using the Strahler stream order attribute from the NHD plus V2 dataset.

Attribute_Definition_Source:

http://www.horizon-systems.com/nhdplus/StrahlerList.php

Attribute:

Attribute_Label:qpheadwate

Attribute_Definition:

Strahler stream order values of 1 were coded as a 5, Strahler stream order values of 2 were coded as a 3, and Strahler stream order values of 3 were coded as a 1. All other values were coded as a 0.  

Attribute_Definition_Source:

internal

Attribute:

Attribute_Label:pbaseflow

Attribute_Definition:

Base flow was calculated using a 1000m nationwide grid created by USGS.  Base flow was apportioned by merging the grid cells with NHD plus catchment boundaries and using an area weighted approach.

Attribute_Definition_Source:

http://water.usgs.gov/GIS/metadata/usgswrd/XML/bfi48grd.xml

Attribute:

Attribute_Label:qpbaseflow

Attribute_Definition:

The natural breaks of the percent base flow, Natural breaks were obtained by using the kmeans function in the R program for Statistical Computing using kmeans(pbaseflow,5).

Attribute_Definition_Source:

internal

Attribute:

Attribute_Label:apcaw

Attribute_Definition:

The final index result created by summing the results of the following normalized metrics, each individual component was scaled to between 0 and 5. apcaw = 
( 
  qpforestWet11
+ qpRipNaturalCover 
+ qaErosionPotential 
+ qsGWrechargeinchyr 
+ qpHeadwaterStreams 
+ qpBaseFlow
)

Attribute_Definition_Source:

Internal

Distribution_Information:

Distributor:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization:Academy of Natural Sciences

Contact_Person:Scott Haag

Contact_Position:Senior Managery BioGeoinformatics Group

Contact_Address:

Address_Type:mailing

Address:

1900 Benjamin Franklin Parkway

City:Philadelphia

State_or_Province:Pa

Postal_Code:19103

Contact_Voice_Telephone:215-299-1070

Contact_Electronic_Mail_Address:smh362@drexel.edu

Hours_of_Service:9-5

Contact Instructions:

Email contact is best

Distribution_Liability:

The USER shall indemnify, save harmless, and, if requested, defend those parties involved with the development and distribution of this data, their officers, agents, and employees from and against any suits, claims, or actions for injury, death, or property damage arising out of the use of or any defect in the FILES or any accompanying documentation. Those parties involved with the development and distribution excluded any and all implied warranties, including warranties or merchantability and fitness for a particular purpose and makes no warranty or representation, either express or implied, with respect to the FILES or accompanying documentation, including its quality, performance, merchantability, or fitness for a particular purpose. The FILES and documentation are provided "as is" and the USER assumes the entire risk as to its quality and performance. Those parties involved with the development and distribution of this data will not be liable for any direct, indirect, special, incidental, or consequential damages arising out of the use or inability to use the FILES or any accompanying documentation.

Distribution_Information:

Distributor:

Contact_Information:

Contact_Person_Primary:

Contact_Organization:Pennsylvania Spatial Data Access (PASDA)

Contact_Address:

Address_Type:mailing address

Address:

115 Land and Water building

City:University Park

State_or_Province:Pennsylvania

Postal_Code:16802

Country:United States

Contact_Voice_Telephone:(814) 865 - 8792

Contact_Electronic_Mail_Address:pasda@psu.edu

Distribution_Liability:

The USER shall indemnify, save harmless, and, if requested, defend those parties involved with the development and distribution of this data, their officers, agents, and employees from and against any suits, claims, or actions for injury, death, or property damage arising out of the use of or any defect in the FILES or any accompanying documentation. Those parties involved with the development and distribution excluded any and all implied warranties, including warranties or merchantability and fitness for a particular purpose and makes no warranty or representation, either express or implied, with respect to the FILES or accompanying documentation, including its quality, performance, merchantability, or fitness for a particular purpose. The FILES and documentation are provided "as is" and the USER assumes the entire risk as to its quality and performance. Those parties involved with the development and distribution of this data will not be liable for any direct, indirect, special, incidental, or consequential damages arising out of the use or inability to use the FILES or any accompanying documentation.

Metadata_Reference_Information:

Metadata_Date:20161103

Metadata_Contact:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization:Academy of Natural Sciences

Contact_Person:Scott Haag

Contact_Position:Senior Managery BioGeoinformatics Group

Contact_Address:

Address_Type:mailing

Address:

1900 Benjamin Franklin Parkway

City:Philadelphia

State_or_Province:Pa

Postal_Code:19103

Contact_Voice_Telephone:215-299-1070

Contact_Electronic_Mail_Address:smh362@drexel.edu

Hours_of_Service:9-5

Contact Instructions:

Email contact is best

Metadata_Standard_Name:FGDC Content Standard for Digital Geospatial Metadata

Metadata_Standard_Version:FGDC-STD-001-1998

Metadata_Time_Convention:local time