Water 2025: Preventing Crises and Conflict in the West

• Description: Water 2025: Preventing Crises and Conflict in the West
• State: CO
• Date: 5/5/2003
• Title: Water 2025: Preventing Crises and Conflict in the West
• Water Supply Pro - Doc Type: Meeting

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USGS 03213700 TUG FORK AT WILLIAMSON, WV
May 02 May 03 May 04 May 05 May 06 May 07
DATES: 05/02/2002 to 05/08/2002 10:00
EXPLANATION
— GAGE HEIGHT — Floodstage
Figure 2. Monitoring river levels during a flood.
USGS 13013650 SNAKE RIVER AT MOOSE, WY
May 08
May 22 May 23 May 24 May 25 May 26 May 27 May 28 May 29
DATES: 05/22/2002 to 05/29/2002 11:38
Figure 3. Monitoring chemical characteristics.
Data Network
NWISWeb data come from a
nationwide network of more than 1.5
million USGS water -data collection sites,
currently including:
♦ 315,000 water - quality sites where
samples are taken from rivers
or aquifers.
♦ 22,600 past and present streamflow
sites.
• 8,830 real -time sites, including
streams, lakes, reservoirs, ground-
water, and meteorological sites.
• 1.40 million wells.
From this source network comes an
array of water -data samples, as well as
data values:
♦ 62.7 million chemical analyses that
are based on 4.0 million water - quality
samples.
6 181 million daily streamflow values.
♦ 635,000 flood -peak discharges.
4 7.1 million ground- water -level
measurements.
"... imagine my amazement to find
ground -water depth information
and water - quality data online."
Printed on recycled paper
Monitoring
At selected surface -water and ground-
water sites, the USGS maintains instru-
ments that continuously record physical and
chemical characteristics of the water for
such information as water level, flow, pH,
specific conductance, temperature, dissolved
oxygen, and percent dissolved- oxygen
saturation. A list of the many parameters can
be found at http: / /waterdata.usgs.gov /nwis/
current ?submitted_form = introduction .
The data is normally transmitted by
modem or satellite once every 4 hours and is
processed automatically at USGS offices and
made available within minutes. NWISWeb
improves efficiency in USGS research and
data retrieval operations. Most users can
obtain the information they need directly
from NWISWeb. The system also allows
USGS scientists to better quality- assure data
as it is received from the monitoring sites.
"Your website will REALLY be
helpful the next time we have to
monitor a flooding situation in our
(radio stations's) coverage area."
Functionality
A single interface allows access to data
from the entire Nation and enables users to
easily compare data spatially over time to
track changes. Navigation features allow
users to start their search by specifying the
data type of interest and to search the entire
Nation or a specific State. Users select
exactly how they want to see the data they
request —as graphs, tables, or files they
can download. They can also create their
own Web site bookmarks to make requests
for tailored outputs that they expect to
use repeatedly. The bookmarking feature
gives users the output they want when they
reconnect to the Web site in a few hours,
weeks, or months. Those users who expect
to make large or frequent requests are
urged to e-mail gs– W– support_NWISWeb
@ usgs.gov to work with USGS staff to
identify the best way to get data they need.
For more information,
please contact:
Chief, NWIS
U.S. Geological Survey
437 National Center, Reston, VA 20192
email: h2oteam @usgs.gov