General Information

Project area general description

The Connecticut River Basin

Are any areas excluded?

no

Types of flow statistics available

daily flows (desktop app for cooperator)

ArcGIS version used for processing

9.2

Was TopoGrid used to process DEMs?

Yes

DEM and derivatives projection (general description)

se the State website that overlaps the click point of interest

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

10 m

DEM source

NED 1/3

Hydrography source

NHD 1:24k

Hydrologic unit "walls" source

WBD 1:24k

Gage basin boundaries source

Legacy hand delineated basin (digitized)

Interactive map snapping tolerance

2 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 in square miles.

polygon area

GlobalWatershed

Archfield and others (2012)

DRNAREA

MAPM

Mean Annual Precipitation Basin Average (inches)

area-weighted mean

800M resolution PRISM 1971-2000 data
http://www.prism.oregonstate.edu/products/      (resampled to 30 meter grid resolution)

Archfield and others (2012)

MAPM

CENTROIDX

Basin centroid horizontal (x) location in MA state plane coordinates

ArcHydro custom op

Archfield and others (2012)

CENTROIDX

CENTROIDY

Basin centroid vertical (y) location in MA state plane coordinates

ArcHydro custom op

Archfield and others (2012)

CENTROIDY

OUTLETX

Basin outlet horizontal (x) location in MA state plane coordinates

ArcHydro custom op

Archfield and others (2012)

OUTLETX

OUTLETY

Basin outlet vertical (y) location in MA state plane coordinates

ArcHydro custom op

Archfield and others (2012)

OUTLETY

CRSDFT (MA portion)

Percentage of area of coarse-grained stratified drift

percent of area

MassGIS Surficial Geology (1:250,000) codes 1, 5, 6, 7

Archfield and others (2012)

CRSDFT

CRSDFT (NH portion)

Percentage of area of coarse-grained stratified drift

percent of area

NH Water Science Center generalized sufricial geology.  "S" category used to match MA surficial geology

Archfield and others (2012)

CRSDFT

CRSDFT (VT portion)

Percentage of area of coarse-grained stratified drift

percent of area

VCGI Surficial Geology (62K). Codes 0, 1, 4-18, 20, 21, 23-25

Archfield and others (2012)

CRSDFT

CRSDFT (CT portion)

Percentage of area of coarse-grained stratified drift

percent of area

CT 24K Surficial Geology (Janet Stone). Codes "A" (Alluvium), "F" (Fines), "G" (Gravel) and "S" (Sand")

Archfield and others (2012)

CRSDFT

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