Ground-Based GPS Status and Plans
J. Braun and T. Iwabuchi
T. Van Hove, K. Hudnut, and M. Sleziak
COSMIC Retreat - October 2008
Outline
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Caribbean Project
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Current network
2007&2008 Hurricane seasons
Current results
How to quantify impact
Ocean Platforms Workshop
Future MRI Proposal
Direction for future ground-based GPS research
COSMIC Retreat - October 2008
Gustav - 2008
COSMIC Retreat - October 2008
Hurricane Season - 2007
COSMIC Retreat - October 2008
Dean Impact Study
COSMIC Retreat - October 2008
Hurricane Season - 2008
COSMIC Retreat - October 2008
Gustav - 2008
COSMIC Retreat - October 2008
Hurricane Gustav - 2
Acknowledgements to Ted
Iwabuchi,
COSMIC
WRF assimilation
COSMIC
Retreat
- Octoberfor
2008
GPS PWV minus ETA PWV

Negative biases in 00 UTC and 12 UTC for Caribbean region (September,
2007)
COSMIC Retreat - October 2008
Caribbean network statistics
GFS
Mean bias in CRBNET12 domain
Mean
00 UTC 06 UTC 12 UTC 18 UTC
August
-0.68
-1.15
-0.45
-0.64
-0.54
September
-0.61
-0.69
0.06
-1.03
-0.70
ETA
Mean bias in Southeastern area (Lat. < 32, Lon. > -100)
Mean
00 UTC 06 UTC 12 UTC 18 UTC
August
-0.63
-1.62
-0.49
-0.24
-0.21
September
-0.61
-1.33
-0.20
-0.53
-0.34
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Obs. Minus BG (NOAA NCEP GFS)
COSMIC Retreat - October 2008
Outline




Caribbean Project
Ocean Platforms Workshop
Future MRI Proposal
Direction for future ground-based GPS research
COSMIC Retreat - October 2008
Workshop Page
http://www.joss.ucar.edu/joss_psg/meetings/Meetings_2008/ocean_workshop/index.html

Current capabilities and
deployments

Introduce new science
potential
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Evaluate Infrastructure
and platform overview
and logistics
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Breakout sessions for
brain storming,
technical discussions,
and science
prioritization.
QuickTime™ and a
decompressor
are needed to see this picture.
COSMIC Retreat - October 2008
Workshop Participants - NOAA
National Geodetic Survey
(NGS)
Texas A&M
U. Miami (RSMAS)
National Geophysical
Data Center (NGDC)
University of Colorado (CCAR)
Louisiana State University
(LSU)
Earth Systems Research
Lab (ESRL)
U. New Hampshire
Scripps Institute of
Oceanography
Integrated Ocean
Observing System
(IOOS)
NASA - Goddard Space Flight
Center (GSFC)
Technical University of
Crete (Greece)
Kochi National College of
Technology (Japan)
University of Puerto Rico Mayaguez
NASA - Jet Propulsion
Laboratory (JPL)
U. South Florida (USF)
National Data Buoy
Center (NDBC)
COSMIC Retreat - October 2008
Workshop Topics - 1
Tsunami Detection
Terada - Japan
Satellite Altimeter Calibration
Bruce Haines - JPL
Coastal Subsidence
Roy Dokka - LSU
GPS Infrastructure
Chuck Meertens - UNAVCO
GPS Analysis from Ocean Platforms
Chris Rocken
Acoustic sea-floor positioning
Oscar Columbo - GSFC
Integrated Ocean Observing System (IOOS)
Jack Harlan - IOOS
NOAA Buoy Operations
Pete Lessing - NDBC
FAA - AWOS Network
Allen Overbey - FAA
Research Vessels
?????
Educational Opportunities
Chris Simonello - GCOOS (SFU)
COSMIC Retreat - October 2008
Workshop Topics - 2
NOAA GPS Meteorology
Seth Gutman
Air-Sea Modeling and Ocean Observations in
Hurricanes
Shuyi Chen - RSMAS
Year of Tropical Convection
Mitch Moncrief - NCAR
Microwave satellite PW calibration
CSU??
Ocean Reflections
Valery Zavorotny - NOAA
Ship Based Measurements of Sea-Surface
Topography
James Foster - U. Hawaii
COSMIC Retreat - October 2008
NOAA Ocean Observing System
Johnson, M., “Implementing the Global Ocean Observing System”, WMO Bulletin (57), 2008
COSMIC Retreat - October 2008
Proposed FAA AWOS Network
Map from Allan Overbey, FAA (Via Todd Mogged, NWS)
COSMIC Retreat - October 2008
Marco Polo - Hurricane Ike
COSMIC Retreat - October 2008
Marco Polo - Hurricane Ike - Displacement
COSMIC Retreat - October 2008
Marco Polo - Hurricane Ike - Wave Heights
COSMIC Retreat - October 2008
Workshop Status and Developments

Goal is to identify core group of potential collaborators and prioritize
science questions.

Agenda is almost complete. Still looking for people to discuss a few
topics.

Approximately 50 people will attend (NOAA, NASA, universities, industry)

Key contacts made include NOAA/IOOS, FAA, Shell Oil, Forest Oil,
Devon Energy

Still would like to identify research vessel collaborator (WHOI, U.W.,
SCRIPPS, NOAA)
COSMIC Retreat - October 2008
Outline

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
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Caribbean Project
Ocean Platforms Workshop
Future MRI Proposal
Direction for future ground-based GPS research
COSMIC Retreat - October 2008
Real-Time Network
Collaborative MRI Proposal between UNAVCO, COSMIC, and Unidata
COSMIC Retreat - October 2008
Simulation of PW as a Nowcasting Tool
Done, et al, 2005:
“..we conclude that observing
instrumentation capable of
providing 10 min repeat cycles at a
resolution of 10 km would be able
to detect significant moisture
convergence, and provide useful
warning for the possibility of
severe convection.”
COSMIC Retreat - October 2008
Blended GPS and Radar Data
COSMIC Retreat - October 2008
Outline

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Caribbean Project
Ocean Platforms Workshop
Future MRI Proposal
Direction for future ground-based GPS research
COSMIC Retreat - October 2008
Summary and Discussion Topics

Survey reveals a relatively high level of satisfaction from
user community
» Identified some areas for improvement in service
» Helped to prioritize future direction of group

Ground based group has identified future topics based on
scientific interest, potential impact, and community input
»
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CI and nowcasting research
Ocean based platforms
Soil Moisture sensors
Climate monitoring
Need to diversify funding sources
COSMIC Retreat - October 2008
GPS as a Soil Moisture Sensor
K. Larson, CU ASEN.
COSMIC Retreat - October 2008