Introduction. Zoltan’s information Matrix (consider a list of people in the branch, maybe take the time to go around the room for brief introductions) Strategic plan Thrust areas Mission . LAPS System. LAPS Motivation. High Resolution (500m – 3km), rapid update (10-60min)
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(consider a list of people in the branch, maybe take the time to go around the room for brief introductions)
Hotstart with cloud/rain/snow
Variational LAPS has higher
ETS than persistence fcst.
An OSSE is a modeling experiment used to evaluate the impact of new observing systems on operational forecasts when actual observational data is not available.
A long free model run is used as the “truth” - the Nature Run
The Nature Run fields are used to back out “synthetic observations” from all current and new observing systems.
The synthetic observations are assimilated into a different operational model
Forecasts are made with the second model and compared with the Nature Run to quantify improvements due to the new observing system
Early OSSE works confirmed data impact when observation systems have actually launched (ERS, NSCAT and AIRS, Atlas 1985,1997 and so on).
Calibrated NOAA joint OSSE;
Report to NOAA UAS program on UAS data impact on hurricane tracks;
New nature run;
Targeting observation scheme in OSSE.
Global Systems Division
Forecast Applications Branch
23-25 October 2012, Boulder, CO
Oct. 25-27 2010, ESRL, Boulder, CO
Oct. 23-25 2010, ESRL, Boulder, CO
October 23-25 2012
Three-day workshop (Oct 23-25, 2012).
Roughly 85 attendees
23 remote attendees all US
Several countries represented (prior slide)
30 oral presentations 3-4 remote.
Three break out topical areas (working groups)
Scientific opportunitiesfor further development
Fully variational multiscale DA approach
Dynamical constraints consistent with WRF
Use of LAPS
Change control management
Test & evaluation
Role of NWS
Collaboration / data / software
Shared algorithm / software development
Software to digest new types of data
Fine scale LAPS analyses and forecasts are widely used for
Continue development and support of LAPS
Serves a unique need within NWS, private sector, and internationally with 150+ total users worldwide
Unique combination of features
Fine scale, very rapid update, highly portable, easy to use
Further enhance unique features of LAPS
LAPS analysis system was in Zoltan’s slide set ??
NOAA Mission: To understand and predict changes in Earth’s environment and conserve and manage coastal and marine resources to meet our nation’s economic, social, and environmental needs
GPS-Met supports NOAA’s Mission by providing reliable and accurate refractivity & moisture estimates at low cost under all weather conditions anywhere a permanent GPS tracking station can be established.
Weather & Water Goal:
Commerce & Transportation Goal:
Satellites Modeling & Observing Systems
0.24 mm 0.43 mm
Leblanc et al. 2011: Measurements of Humidity in the Atmosphere and Validation Experiments (MOHAVE)-2009: overview of campaign operations and results, Atmos. Meas. Tech., 4, 2579-2605, doi:10.5194/amt-4-2579-2011.