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SUBCOMMITTEE ON HYDROLOGY

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Title: SUBCOMMITTEE ON HYDROLOGY


1
SUBCOMMITTEE ON HYDROLOGY
  • Overall Goal from purpose statement
  • To improve the availability and reliability of
    (surface water) information needed for hazard
    mitigation, water supply and water use
    management, and environmental protection

2
SUBCOMMITTEE ON HYDROLOGY
  • Meetings held Quarterly
  • Winter and Spring 2004 in Washington, DC
  • July 15, 2004 in Denver, CO
  • Next Meeting October 14, 2004 in Washington, DC

3
SUBCOMMITTEE ON HYDROLOGY
  • Present Officers
  • Donald Frevert, BOR, Chair
  • S. Samuel Lin, FERC, Vice-Chair
  • Terms Extend through September, 2005

4
SUBCOMMITTEE ON HYDROLOGY
  • Current Member Organizations
  • Agricultural Research Service
  • American Forests
  • Association of State Floodplain Managers
  • Bureau of Land Management
  • Bureau of Reclamation
  • Defenders of Property Rights
  • Federal Emergency Management Agency
  • Federal Energy Regulatory Commission
  • Federal Highway Administration
  • Current Member Organizations (continued)
  • National Hydrologic Warning Council
  • National Science Foundation
  • National Weather Service
  • Natural Resources Conservation Service
  • US Army Corps of Engineers
  • US Environmental Protection Agency
  • US Forest Service
  • US Geological Survey
  • Indicates inactive organization

5
SUBCOMMITTEE ON HYDROLOGY
  • Current Work Groups
  • Hydrologic Frequency Analysis Work Group,
  • Will Thomas (Michael Baker and Associates),
    Chair
  • Hydrologic Modeling Work Group,
  • Donald Frevert (BOR), Chair
  • Hydrologic Radio Frequency Work Group,
  • Scott Jackson (NWS), Chair
  • Satellite Telemetry Interagency Work Group,
  • Ernest Dryer (USGS), Chair

6
SUBCOMMITTEE ON HYDROLOGY
  • Hydrologic Frequency Analysis Work Group
  • Most Recent Meetings July 24, 2003 and January
    28, 2004
  • Next Meeting Planned for October, 2004 in
    Alexandria, VA
  • Work group formed to address three main issues
  • Preparing a list of Frequently Asked Questions
    and Answers about Bulletin 17B - Guidelines For
    Determining Flood Flow Frequency (Interagency
    Advisory Committee on Water Data, 1982)
  • Developing guidance for Flood Frequency
    Estimates on ungaged watersheds
  • Developing guidance for Flood Frequency
    Analysis for regulated watersheds
  • List of Frequently Asked Questions and Answers
    on Bulletin 17B posted on the work group web
    site
  • Paper entitled Evaluation of Flood Frequency
    Estimates for Ungaged Watershed posted on the
    work group web site

7
SUBCOMMITTEE ON HYDROLOGY
  • Hydrologic Frequency Analysis Work Group
    (continued)
  • Benefit Provides a forum for discussion of
    flood frequency analysis issues
    among experts throughout the
    country
  • Ongoing Tasks
  • Preparing report on flood frequency analysis
    for regulated watersheds
  • Making references, cited in Bulletin 17B,
    available on work group web site
  • Investigating update of skew estimation
    procedures for Bulletin 17B
  • Investigating possible code of ethics for
    hydrologic frequency analysis

8
SUBCOMMITTEE ON HYDROLOGY
  • Hydrologic Modeling Work Group
  • Most Recent Meeting January, 2004 in Denver
  • Next Meeting Fall, 2004 Conference Call
  • Held 2nd Federal Interagency Hydrologic
    Modeling Conference
  • July 28 August 1, 2002 in Las Vegas, NV
  • Attended by approximately 350 participants from
  • Federal, State and Local Governments
  • Private Industry
  • Stakeholder Groups
  • Universities or Research Institutes
  • Approximately 160 Technical Presentations and
    40 Posters
  • Five Short Courses on State-of-the-Art
    Technology all well attended

9
SUBCOMMITTEE ON HYDROLOGY
  • Hydrologic Modeling Work Group (continued)
  • Next Hydrologic Modeling Conference Scheduled
    for
  • April 2-6, 2006
  • Initial planning now complete and hotel
    arrangements made
  • Format will be joint conference with Federal
    Sedimentation Conference
  • Call for papers will come out in October, 2004
  • Abstracts will be due in May, 2005

10
SUBCOMMITTEE ON HYDROLOGY
  • Hydrologic Radio Frequency Work Group
  • Narrow Banding of VHF and UHF bands underway
  • Coordinated Agreement in Place with Canada
  • Coordinated Agreement with Mexico being
    Negotiated

11
SUBCOMMITTEE ON HYDROLOGY
  • Satellite Telemetry Interagency Work Group
  • Charted jointly by the Office of the Federal
    Coordinator for Meteorology(OFCM) and the
    Advisory Committee on Water Information (ACWI).
  • Reports to Committee for Environmental Services,
    Operations and Research Needs ( C/ESORN) of OFCM
    and Hydrology Subcommittee of ACWI.
  • Acts as a user's group for major users of the
    GOES DCS.
  • Coordinates funding for user-desired improvements
    to the GOES DCS.
  • Members include BOR, USGS, Corps of Engineers,
    BLM, Forest Service , NOAA, and others.
  • Meets two to three times a year, two meetings so
    far in 2004.

12
SUBCOMMITTEE ON HYDROLOGY
  • Satellite Telemetry Interagency Work
    Group(cont.)
  • Major Activities in 2004
  • Terms of Reference
  • Updated terms of reference
  • URL http//water.usgs.gov/datarelay/stiwg/StiwgTo
    r-new.html
  • High Data Rate DCPs
  • Finalized Plan for transition to High Data
    Rate(HDR) DCPS
  • URL http//water.usgs.gov/datarelay/stiwg/FinalHD
    RPlan.html
  • Goes DCS Backup
  • Participated in NESDIS Study
  • Has reservations about site selection methodology
    which will be reported to the Subcommittee on
    Hydrology at its next meeting

13
SUBCOMMITTEE ON HYDROLOGY
  • Satellite Telemetry Interagency Work Group
  • Major Activities in 2004 ( cont. )
  • GOES DCS Improvements
  • Members participated in NESDIS-sponsored meetings
    with manufacturers of equipment for GOES DCS
  • Helped develop a list of long-term potential
    improvements that included
  • Reduction of the the frequency range currently
    used by HDR DCPs by ½ which would double the
    capacity of GOES DCS.
  • Use of the GOES DCS interrogation link for 2-way
    communications with remote sites.

14
SUBCOMMITTEE ON HYDROLOGY
  • Proposed Motion on Maintenance of the Present
    Streamgage Network
  • Background
  • Importance of streamflow data to protection of
    life and property as well as effective water
    resources management.
  • Network is heavily funded by USGS partners and
    this funding is subject to substantial year to
    year fluctuations. The result has been loss of
    some key stations in recent years.
  • Reliance of other agencies and organizations on
    this data.
  • Recommendation
  • Maintain the program at or above its present
    level
  • USGS remain the agency responsible for operation

15
SUBCOMMITTEE ON HYDROLOGY
  • Key Websites
  • http//water.usgs.gov/wicp/acwi/hydrology/index.
    html for general
    subcommittee information
  • http//water.usgs.gov/wicp/acwi/hydrology/hydrol
    _members.html for rosters
  • http//water.usgs.gov/wicp/acwi/hydrology/mtscon
    fwkshops/index.html for conference and workshop
    information
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