SPoRT Products in Support of the GOES-R Proving Ground and NWS Forecast Operations
Post on 23-Feb-2016
38 Views
Preview:
DESCRIPTION
Transcript
SPoRT Products in Support of the GOES-R Proving Ground and NWS Forecast Operations
Andrew MolthanNASA Short-term Prediction Research and Transition (SPoRT) Center
Marshall Space Flight Center, Huntsville, AL
NWS Eastern Region Satellite Virtual WorkshopNovember 9, 2010
transitioning unique NASA data and research technologies to operations
Overview of SPoRT Activities
Mission Objective:Transition unique NASA data and research technologies to operations
Emphasis: 0-48 hour forecast periodActivities: Long history (5+ years) of collaborative work with Southern Region WFOs
Currently expanding with targeted collaborations in other regions.
transitioning unique NASA data and research technologies to operations
Partners Receiving DataSPoRT Partner WFOsNWS Regional HQsDirect Broadcast sites
Eastern Region offices are a new partnership in the development of a Great Lakes temperature composite.
transitioning unique NASA data and research technologies to operations
SPoRT and the GOES-R Proving Ground
• Development of GOES-R ABI proxies from MODIS– True color composites– Fog / Snow detection– Hybrid of GOES/MODIS
• Development of GLM proxies from lightning mapping arrays– Total lightning– Lightning trends and jumps– Relationships to severe weather
and lead time• Demonstrate products within the
AWIPS and AWIPS II decision support systems.
AWIPS
AWIPS II
MODIS Single Channel • The primary challenge in
using polar orbiting data is temporal resolution.
• SPoRT has developed a “hybrid technique” that replaces GOES pixels with MODIS when available.
• This allows for looping and viewing of higher resolution data comparable to GOES-R.
MODIS
GOES
IR Hybrid Example
transitioning unique NASA data and research technologies to operations
MODIS Channel Differencing
• Current MODIS bands can be used as proxies for future GOES-R ABI capabilities
• Single channel and channel differencing techniques produce higher resolution products than currently available from GOES.
Fog
Overlay of the channel differencing MODIS fog product with semi-transparent terrain in AWIPS, highlighting valley fogs in high spatial resolution (1 km).
transitioning unique NASA data and research technologies to operations
MODIS Color Composites• The GOES-R ABI will have
additional spectral bands, allowing for color composites.
• Color composites assist with image classification and the detection of various features.
• SPoRT provides these products in AWIPS for evaluation and testing.
landsnow
cloud False Color Composite
True Color Composite
fire/burn scar
smok
e plume
transitioning unique NASA data and research technologies to operations
Developing RGB Image Techniques• EUMETSAT has developed several
multispectral “RGB” composites from the SEVERI instrument.
• By combining information from multiple channels, resulting images depict:– Air mass characteristics– Cloud microphysics– Separation of fog, low cloud, snow– Dust and other aerosols
• SPoRT is experimenting with techniques to display these images in:– NAWIPS– AWIPS– AWIPS II
transitioning unique NASA data and research technologies to operations
MODIS “Air Mass” in AWIPS
Hurricane “Earl” (MODIS)
Lightning Proxies for GLM• The Geostationary Lightning Mapper
(GLM) will assist in the detection and prediction of severe weather.
• As a proxy for GLM capabilities, SPoRT provides data from lightning mapping arrays:– North Alabama (NALMA)– Washington, D.C. (DCLMA)– NASA Kennedy Space Center– Other networks are available in
CONUS and data are requested• These LMAs are used to develop
products comparable to future GLM capabilities.
land
transitioning unique NASA data and research technologies to operations
Possible GLM Coverage and 95-05 Lightning Climatology
LMA Coverage
Utility of Lightning Data• In addition to public safety,
lightning data provides information related to storm strength and intensification.
• The “lightning jump” technique has been used to predict severe weather.
• Future GLM capabilities may provide similar datasets for “jump detection” over CONUS.
land
transitioning unique NASA data and research technologies to operations
Updraft Intensifies
Vortex Spin-up
The SPoRT “Pseudo-GLM” Product• Serves as a placeholder
until the official GLM proxy is available.
• Evaluated as part of the SPC Hazardous Weather Testbed Spring Experiment.
• Receives CONUS LMA datasets as inputs and downscales to a resolution (8 km) comparable to the GLM capabilities.
land
transitioning unique NASA data and research technologies to operations
LMA
Pseudo GLM
Future GLM flash rates will help to identify updraft centers within other satellite imagery.
updraft
The SPoRT “Pseudo-GLM” Product• Serves as a placeholder
until the official GLM proxy is available.
• Evaluated as part of the SPC Hazardous Weather Testbed Spring Experiment.
• Receives CONUS LMA datasets as inputs and downscales to a resolution (8 km) comparable to the GLM capabilities.
land
transitioning unique NASA data and research technologies to operations
LMA
Pseudo GLM
Future GLM flash rates will help to identify updraft centers within other satellite imagery.
updraft
transitioning unique NASA data and research technologies to operations
Related SPoRT Research Activities• SPoRT research assists partner
WFOs with their local modeling efforts.
• SPoRT facilitates new model development:– WRF-EMS hourly maximum output
fields– Lightning forecast algorithms for
the NSSL WRF• SPoRT also provides unique
initialization data sets:– Sea and lake surface temperatures– Land Information System soil
moisture
Hourly Maximum Updraft Helicity
WRF Lightning Threat Prediction
Lightning Prediction Algorithm• Based upon the McCaul et
al. 2009 (WAF) technique.• Uses graupel flux and
vertically integrated ice to predict lightning threat from WRF-simulated thunderstorms.
• Calibrated using NALMA data and WSM6 microphysics.
transitioning unique NASA data and research technologies to operations
Lightning threat prediction for organized thunderstorms in the southeast. Predicted units are flash rates per square kilometer, per 5 minutes.
WRF Environmental Modeling System• SPoRT is heavily involved in developing
new data sets for the WRF Environmental Modeling System (WRF-EMS).
• WRF-EMS is a convenient suite of the WRF model and post-processing routines.– Products are available through selection
in WRF-EMS scripts.• SPoRT currently provides:
– Sea surface temperatures– Great Lakes temperatures and ice cover– High resolution output from the Land
Information System• Future efforts include:
– Vegetation composites – AIRS profile assimilation
transitioning unique NASA data and research technologies to operations
Soil Moisture Difference0-10 cm (LIS – CNTRL, %)
SPoRT SST Grid
Future NDVI Composites
Summary
• SPoRT participates in the GOES-R Proving Ground, developing products for real-time use that are comparable to future GOES-R capabilities.– Current applications of MODIS and lightning data– Emphasizes collaborative partnerships with WFOs,
focused on their forecast challenges.• In addition to GOES-R Proving Ground, SPoRT
provides a variety of products for real-time use.– WRF-EMS initialization fields– Unique model outputs developed in SPoRT collaborations
transitioning unique NASA data and research technologies to operations
top related