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StreamStats

Massachusetts StreamStats Application Information


General Information

Project area general description

The state of Massachusetts

Are any areas excluded?

Cape Cod, the Connecticut River, and Merrimack River are all excluded from flow statistics but are included for watershed delineations

Types of flow statistics available

low flows and perennial flows

ArcGIS version used for processing

 ver.8.3

Was TopoGrid used to process DEMs?

Yes

DEM and derivatives projection (general description)

Massachusetts State Plane meters

DEM and derivatives (fdr, fac, etc.) resolution

10 m

DEM source

One-third-arc-second NED, 2004 http://ned.usgs.gov/

Hydrography source

National Hydrography Dataset (NHD) - High-resolution, 2004 http://nhd.usgs.gov/

Hydrologic unit "walls" source

Watershed Boundaries Dataset, 2005, http://www.idwr.idaho.gov/watersheds/default.htm

Gage basin boundaries source

not used

Interactive map snapping tolerance

3 cells

Basin Characteristics Methods and Sources

Name

Description

Computation method

Data source

Report

Variable label in report

DRNAREA

Area that drains to a point on a stream

 polygon area

 GlobalWatershed

Ries and Friesz (2000), Bent and Steeves (2006), Archfield and others (2009), and Bent and Waite (2014)

 DA (Ries and Friesz, 2000) and no variable acronym used in report for other studies

STRMTOT

Total length of mapped streams in basin

length

National Hydrography Dataset (NHD) 1:24,000 at http:nhd.usgs.gov.

Ries and Friesz (2000)

not used

DRFTPERSTR

Area of stratified drift per unit of stream length

total drift per unit stream length, in square miles per mile, computed by dividing the total area of surficial geology categories 1, 5, 6, and 7 by the total stream length

 ACRSDFT and STRMTOT

Ries and Friesz (2000)

 DR/ST

MAREGION

Region of Massachusetts 0 for Eastern 1 for Western

 Point Extract Operation (outlet)

 "lowflowreg_g" in the state  bc_layers folder

Ries and Friesz (2000) and Bent and Steeves (2006)

REG and no variable acronym used in report, respectively

FOREST

Percentage of area covered by forest land

percent of area

MassGIS, 2004c, Datalayers/GIS Database—Land use— January 2002, scale 1:25,000, accessed April 30, 2004, at http://www.state.ma.us/mgis/lus.htm

Bent and Steeves (2006)

no variable acronym used in report

CRSDFT

Percentage of area of coarse-grained stratified drift

percent of area of surficial geology categories 1 and 5, and categories 6 and 7 if they were surrounded by categories 1, 5, or both

MassGIS, 2004, Datalayers/GIS Database—Surficial Geology—October 1999, scale 1:250,000, accessed May 3, 2004, at http://www.state.ma.us/mgis/sg.htm

Bent and Steeves (2006)

no variable acronym used in report

BSLDEM10M

Mean basin slope computed from 10 m DEM

average

U.S. Geological Survey, 2007, National elevation dataset, accessed June 8, 2007, at http://ned.usgs.gov/.

Bent and Waite (2014)

mean basin slope

BSLDEM250

Mean basin slope computed from 1:250K DEM

area-weighted mean

 1:250,000-scale DEMs (http://pubs.usgs.gov/circ/1983/0895b/report.pdf)

Ries and Friesz (2000)

 SL

ACRSDFT

Area underlain by stratified drift

total area of surficial geology categories 1, 5, 6, and 7

http://www.mass.gov/anf/research-and-tech/it-serv-and-support/application-serv/office-of-geographic-information-massgis/datalayers/sg.html

Ries and Friesz (2000)

not used

LC11IMP

Percentage of impervious area determined from NLCD 2011 impervious dataset

area-weighted mean

http://www.mrlc.gov/nlcd2011.php

General characteristic nationwide

Not applicable

LC11DEV

Percentage of urban area determined from NLCD 2011 landcover dataset

percent of area

http://www.mrlc.gov/nlcd2011.php

General characteristic nationwide

Not applicable

ELEV

Mean Basin Elevation

average

U.S. Geological Survey 30-meter National Elevation Dataset

Archfield and others (2009)

no variable acronym used in report

PRECPRIS00

Basin average mean annual precipitation for 1971 to 2000 from PRISM

average

PRISM Climate Group at http://prism.oregonstate.edu/

Archfield and others (2009)

no variable acronym used in report

LAKEAREA

Percentage of Lakes and Ponds (open water)

percent of area

MassDEP Wetlands (1:12,000): http://www.mass.gov/anf/research-and-tech/it-serv-and-support/application-serv/office-of-geographic-information-massgis/datalayers/depwetlands112000.html

Archfield and others (2009)

no variable acronym used in report

OUTLETX

Basin outlet horizontal (x) location in state plane coordinates

ArcHydro Custom Op

GlobalWatershed point

Archfield and others (2009)

no variable acronym used in report

OUTLETY

Basin outlet vertical (y) location in state plane coordinates

ArcHydro Custom Op

GlobalWatershed point

Archfield and others (2009)

no variable acronym used in report

MAXTEMPC

Mean annual maximum air temperature over basin area, in degrees Celsius for 1971 to 2000 from PRISM

average and maximum

PRISM Climate Group at http://prism.oregonstate.edu/

Archfield and others (2009)

no variable acronym used in report

WETLAND

Percentage of Wetlands

percent of area

MassDEP Wetlands (1:12,000): http://www.mass.gov/anf/research-and-tech/it-serv-and-support/application-serv/office-of-geographic-information-massgis/datalayers/depwetlands112000.html

Archfield and others (2009)

no variable acronym used in report

CENTROIDX

Basin centroid horizontal (x) location in Massachusetts State Plane (meters)

ArcHydro Custom Op

GlobalWatershed

Archfield and others (2009)

not used

CENTROIDY

Basin centroid vertical (y) location in Massachusetts State Plane (meters)

ArcHydro Custom Op

GlobalWatershed

Archfield and others (2009)

no variable acronym used in report

ELEV

Mean Basin Elevation

average

USGS National Elevation Dataset (30 meter source resampled to 10 meter)

Zarriello (2017)

no variable acronym used in report

LC06STOR

Percent Storage from NLCD2006

percent of area

http://www.mrlc.gov/nlcd2006.php

Zarriello (2017)

no variable acronym used in report

The Massachusetts StreamStats introductory page here has additional information regarding the application, including links to reports, cooperators, and other explanatory information.