Post on 25-Jan-2016
description
SUBCOMMITTEEspatial water data
Interagency Development of a Reference Set of Watersheds for the
United StatesWBD
SUBCOMMITTEEspatial water data
FGDC
ACWI
SubcommitteeSubcommitteeon Spatialon Spatial
Water DataWater Data(FACA)(FACA)
NRCS
USGS
NOAA
EPA
USFS
TXTX
NSGICNSGIC
ASCEASCE
COEFEMA
BLM
NWS
TVA
CACA
AKAK
SUBCOMMITTEEspatial water data
Integration of key Spatial Water Datasets
NED NHD
WBDEDNA
“surface water geospatial
framework”
SUBCOMMITTEEspatial water data
Hydrologic Units2-digit= 1st level = 22 regions
4-digit= 2nd level = 222 subregions
6-digit= 3rd level = 789 accounting
8-digit= 4th level = 2223 cataloging
10-digit= 5th level = ~22,000 watersheds
12-digit= 6th level = ~160,000 subwatersheds
new!
SUBCOMMITTEEspatial water data
OKOK
TXTX
CCOO
KSKS
NNMM
SUBCOMMITTEEspatial water data
Vision:Follow a drop of water from where it falls on the land, to the stream, and all the way to the ocean.
WBD, a “key” part . . .
SUBCOMMITTEEspatial water data
Project Status
GOAL: Initial “draft” completed
December 2002
SUBCOMMITTEEspatial water data
SUBCOMMITTEEspatial water data
SUBCOMMITTEEspatial water data
Watershed Boundary Dataset for Maryland
Explanation
Shaded Areas Represent 4th Level Sub-basins
Watersheds, 5th Level ,HUC10
Subwatersheds, 6th Level, HUC12
Terrestrial hydrologic units completed, coastal 5th and 6th levels are currently being re-delineated by Dr. Randy Ferguson of NOAA.
Recently completed and submitted
SUBCOMMITTEEspatial water data
SUBCOMMITTEESUBCOMMITTEEspatial water dataspatial water data
PROBLEMS IN COASTAL AREASPROBLEMS IN COASTAL AREAS
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SUBCOMMITTEEspatial water data
Subcommitteeon Spatial
Water Data
GuidelinesGuidelinesWork GroupWork Group
Coastal Coastal WatershedsWatersheds
Work GroupWork Group
FGDCHUC Interagency
Guideline
SUBCOMMITTEEspatial water data
GeomorphologyGeomorphology
SUBCOMMITTEEspatial water data
PROBLEMS IN COASTAL AREASPROBLEMS IN COASTAL AREAS
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SUBCOMMITTEEspatial water data
SUBCOMMITTEEspatial water data
NOAA/NOS Implementation
• Pilots• Coastal delineation guidance• state/coast implementation
– Assisting state groups– Workshops– Data and data manipulation– One-on-one with States
SUBCOMMITTEEspatial water data
Watershed Boundary Dataset
Item name Width Output Type N.Dec. Example
Linesource 20 20 C - DEM30,DRG24,GPS
Meta_id 4 4 C - OK01
Line Attribution (.aat)
Info File Naming ConventionMO_com_poly MO_com_line
Item name Width Output Type N.Dec. Example
MO_com_poly# 4 5 B - 5
Comment 80 80 C - Levee influenced boundary
WBD metadata/attribution session Thursday morning
Kenny Legleiter
SUBCOMMITTEEspatial water data
Current version of the
HUC GUIDELINES . . .
www.ftw.nrcs.usda.gov/huc_data.html
SUBCOMMITTEEspatial water data