laps: unique features
DESCRIPTION
LAPS: UNIQUE FEATURES. Fine scale operational system at NWS Cloud permitting scale - No match within NOAA Multiscale approach Data assimilation at fine resolution, e.g. 1km, comparing to HRRR’s 13km data assimilation. First of its kind internationally - PowerPoint PPT PresentationTRANSCRIPT
![Page 1: LAPS: UNIQUE FEATURES](https://reader035.vdocuments.us/reader035/viewer/2022081503/5681322e550346895d98942e/html5/thumbnails/1.jpg)
LAPS: UNIQUE FEATURES• Fine scale operational system at NWS
– Cloud permitting scale - No match within NOAA• Multiscale approach• Data assimilation at fine resolution, e.g. 1km, comparing to HRRR’s
13km data assimilation.
• First of its kind internationally– Long (20+ yrs) history of technology transfer– Many DA systems adapting LAPS cloud analysis
• Efficiency– Very fast, allows very frequent updating
• Portability and ease of use– Widely used / installed at sites within NOAA, US, Internationally
• Large user/developer community (150+ users)– Leadership in technology transfer 1
![Page 2: LAPS: UNIQUE FEATURES](https://reader035.vdocuments.us/reader035/viewer/2022081503/5681322e550346895d98942e/html5/thumbnails/2.jpg)
LAPS FOR RENEWABLE ENERGY
• A unique fine scale cloud analysis– Showing high quality cloud forecast, specially 0-3h.
• Contribute to Solar Energy proposal for DOE– User metrics for Solar Energy– Improved methods for 0-6 hour Solar Energy forecasting
• Very fine scale data assimilation, numerical modeling, ensemble methods
– Optimal use of forecast information• Use of ensemble forecasts in operational & economic decision
making
• Many institutions approached FAB for proposals using LAPS for solar energy applications
2
![Page 3: LAPS: UNIQUE FEATURES](https://reader035.vdocuments.us/reader035/viewer/2022081503/5681322e550346895d98942e/html5/thumbnails/3.jpg)
Global Horizontal Irradiance Analysis
+ Observations
3-Frames at 15-minute
interval
Utilizes GOES imageryand 3-D cloud analysisallowing rapid 1-3km resolution update
![Page 4: LAPS: UNIQUE FEATURES](https://reader035.vdocuments.us/reader035/viewer/2022081503/5681322e550346895d98942e/html5/thumbnails/4.jpg)
Solar Radiation Analysis (GHI) Verification
HWT Domain Analysis (72 hour time series)~100 Oklahoma mesonet stations.
Partly Cloudy Days
![Page 5: LAPS: UNIQUE FEATURES](https://reader035.vdocuments.us/reader035/viewer/2022081503/5681322e550346895d98942e/html5/thumbnails/5.jpg)
Global Horizontal Irradiance (GHI) Forecast
• Generated from LAPS initialized WRF model
• “Hot-Start” procedure used to help get clouds into model• Vertical Velocity / Horizontal Divergence• Temperature / Height Adjustment• Hydrometeor Assimilation• Consistent Water Vapor Fields
OAR/ESRL/GSD/Forecast Applications Branch 5
![Page 6: LAPS: UNIQUE FEATURES](https://reader035.vdocuments.us/reader035/viewer/2022081503/5681322e550346895d98942e/html5/thumbnails/6.jpg)
GHI Forecast 0-60 minutes 10-min Time Steps
1.7km Domain ResolutionObserved Forecast
6
![Page 7: LAPS: UNIQUE FEATURES](https://reader035.vdocuments.us/reader035/viewer/2022081503/5681322e550346895d98942e/html5/thumbnails/7.jpg)
Simulated IR Satellite Forecast
• Helps show forecast behavior of low & high clouds• Simulated VIS also available – derived from cloud amount• Developing objective cloud and solar forecast verification
Observed / 15 mins Forecast
7