texas high water marks crowd sourcing history, culture, and geography
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Melinda Luna, Team Lead, TNRISPresented at the 2011 Texas GIS ForumTRANSCRIPT
High Water MarksHigh Water MarksCrowd Sourcing-History- Geography
Melinda Luna, P.E., CFMOctober 2011 | Flood Mapping Services
The Problem: Flood Deaths
www.tnris.org/status-maps
State Number of Flood Flood
Deaths(1960-2008)
Texas 657Texas 657
S Dakota 246
Virginia 224
California 186
Colorado 185
Source: Rising Waters, The Causes and Consequences of Flooding in the United StatesSamuel D. Brody, W E Highfield, Jung Eun Kang
The Problem: Theoretical Floodplainswww.tnris.org/status-maps
Initial Floodplain
Floodplain after Highwater marks
Highwater markHighwater mark
Missing Ingredient:Highwater marks g
www.tnris.org/status-maps
CIRCA ~ 1400 AD“Hi h d lli“High dwellings are the peace and harmony of ourharmony of our descendants, Remember the calamity of the great tsunamis. Do not build any homes below this point "point.
Missing Ingredient:Highwater marksg
Highwater Marks Websitet i g/ t twww.tnris.org/status-maps
Total for State: 6,500Total for State: 6,500
Types of high water marks
Thank you to our Partners:
Sources of Highwater Marks
Communities, 6.8%
FEMA 5 7%
USDA-NRCS, 0.3%
USGS, 2.8%
FEMA, 5.7%
USACE, 29.6%
HCFCD, 42.5%
NWS 3 4%
Tx DOT, 6.0%
IBWC, 0.6%LCRA, 2.3%
NWS, 3.4%
Other Methods of acquiring Highwater Mark datat i g/ t t Highwater Mark datawww.tnris.org/status-maps
Web services WebservicesWebservices
Geospatial Pdf
http://services.tnris.org/arcgis/services/High_Water_Marks/MapServer/WMSServer?MSServer?
Gemss.tnris.org
High Water Marks in TexasDallam
Hartley
GrayOldham Potter
Moore
Deaf Smith Donley
Carson
Randall
Roberts
Wheeler
Sherman
Hemphill
OchiltreeHansford Lipscomb
Armstrong
Hutchinson
Collingsworth
101 - 260
51 - 100
2500+
Total for State: 6,500A f 10/20/2011
Clay
Hall
Hale
Jack
King
KentCass
WiseHunt
Lamb
Lynn
Floyd
Terry
Knox
Garza
Cottle
Collin
Motley
Bowie
Lamar
Young
Cooke
Deaf Smith
Baylor Archer
Castro
Donley
Bailey
Denton
FanninCrosby
Parmer
Randall
Haskell
Foard
Briscoe
Grayson
Swisher
Hockley Dickens Red RiverLubbock
Yoakum Hopkins Titus
WichitaWilbarger
Montague
Stonewall
Cochran
Armstrong
Childress
Hardeman
Collingsworth
ThrockmortonDelta
MorrisFranklin
26 - 50
11 - 25
1 - 10
As of 10/20/2011
Hudspeth CulbersonReeves
Hill
Bell
Irion
Ellis
Gaines
LeonUpton
ErathRusk
Coke
Andrews
Ector
Smith
Ward
Falls
Mills
Nolan
Jones
Reagan
Taylor
Dallas
Coryell
Brown
Martin
Fisher
Houston
ColemanTom Green
ParkerScurry
Navarro
El Paso
Crane
Bosque
Tarrant
Runnels
Concho
Borden Wood
Shelby
San Saba
Panola
Sterling
Howard Mitchell
Midland
Dawson
Winkler
Harrison
EastlandCallahan
McLennan
Stephens
Loving
HendersonJohnsonHood
Upshur
CherokeeAnderson
McCulloch
Palo Pinto
Angelina
Hamilton
Kaufman
Comanche
FreestoneLimestone
Van Zandt
Glasscock
Sabine
Shackelford
Nacogdoches
Lampasas
MarionRains
Gregg
San Augustine
FranklinCamp
Somervell
Rockwall
None Identified
Pecos
Brewster
Presidio
Terrell
Val Verde
Crockett
Harris
Bell
Kerr
Polk
Edwards
Jeff Davis
Uvalde
Sutton
Bexar
Brazoria
Tyler
Kinney Medina
KimbleLee
LlanoMilam
TravisLiberty
Real
BurnetMason
Lavaca
Hardin
HaysFayette
Wharton
Schleicher Menard
Gillespie
Walker
Wilson
Trinity
Bastrop
Colorado
Williamson
Blanco
Austin
Bandera
Galveston
Comal
Fort Bend
Kendall
Jasper
Jefferson
Newton
Gonzales
Grimes
Montgomery
Chambers
Brazos
Robertson
Waller
Burleson
Guadalupe
Caldwell
Madison
San Jacinto
WashingtonOrange
Webb Duval
Frio
Bee
Brazoria
Zavala
La SalleDimmit
Matagorda
Nueces
MaverickDeWitt
Kleberg
CalhounGoliad
Atascosa
Wilson
VictoriaKarnes
Live OakMcMullen
Refugio
Jackson
Jim Wells
AransasSan Patricio
Kenedy
StarrHidalgo
Zapata
Cameron
BrooksJim Hogg
Willacy
How can HWM’s help in Floodplain Mapping?Floodplain Mapping?
•Calibration of Hydraulic models•Research projects•Uses outside floodplain mapping•Recreate Historic Flood Events•Outreach – Understanding floodingOutreach Understanding flooding
Highwater marks - History
June 1965 –Sanderson, Texas
September 2008-GalvestonMay 1981 – Austin, Texas
Highwater marks: Geographywww.tnris.org/status-maps
Thank youThank youSend any highwater marks to: High t r rk @t ri [email protected]
Fl d l i M i g S i M i Li 512 463 8337Floodplain Mapping Services – Main Line 512-463-8337Texas Natural Resources Information Systems, a part of the Texas Water Development Board
Melinda Luna, P.E., [email protected]