prism update: what’s new and what’s next? · the prism climate group, oregon state university...
TRANSCRIPT
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PRISM Update: What’s New and What’s Next?
Christopher Daly PRISM Climate Group/NACSE, Oregon State University
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PRISM Spatial Climate Data
• State-of-the-science climate mapping technology
• Developed and operated by the PRISM Climate Group, Oregon State University
• Accounts for variations in
climate due to elevation, rain shadows, coastal effects, temperature inversions, and more
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2012 USDA Plant Hardiness Zone Map ½ million visits per month
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PRISM CONUS Datasets
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Station Networks
• AGRIMET • ASOS • COOP • RFC HYDRO • RAWS • SNOTEL • WBAN • SCAN
• CoCoRaHS • Minnesota HiDen • Environment Canada • North Dakota State Water Commission • South Florida Water Management District • CDEC • CoAgMet • OK Mesonet
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Daily Mapping Schedule • “PRISM Day”: 12Z-12Z (7 AM – 7AM EST) +/- 4 hrs
• Day 0 ending 12Z is mapped:
1. D+1 day
2. D+5 days
3. D+ ~1 month
4. D+2, 5. D+3, 6. D+4, 7. D+5, 8. D+6 months
> 6 months = “Stable”
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USDA RMA Crop Insurance Compliance Support
Purpose: Provide high-quality weather and climate
data to expedite claims (300,000/yr) – Did the claimed damaging event occur?
• Short time scale: Daily and monthly PRISM maps over the lower 48 states in near real time
– Was the event unusual enough to support a loss claim? • Long time scale: Climatic context for the event
– Make the assessment process quick and easy! • Web-based tools
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PRISM/RMA Portal for Loss Adjusters
• Places weather events in their climatic context
• Quick overview of
conditions or detailed data
• Generates reports that
match adjuster work flow
• Upcoming work: Adding severe weather
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PRISM/NRCS SNOTEL QC Web Portal
• QC’s SNOTEL data within ~36 hours each day
• TMIN, TMAX, PRCP, SWE, SNWD
• Provides replacement
values for missing or suspicious observations
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Public PRISM Web Portal
http://prism.oregonstate.edu
• Emphasis on data delivery and documentation
• Access to 4-km versions of
daily and monthly data sets • Usage
– ~1,000 visits and ~60,000 grid package downloads / month (not counting ftp and web service)
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Normals • Data and
images
• 1981-2010 normals
• Monthly
• Norm81m
• 800-m and 4-km resolutions
• Tmin • Tmax • Tmean • Precip
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Comparisons: Anomalies
• Images • Deviation from
1981-2010 normals
• Last quarter, monthly, annual
• Back to 1981
• Tmin, Tmax,
Tmean, Ppt
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Comparisons: Anomalies
January 2014 Mean Minimum Temperature
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• Images (6,000!)
• Percent of 1981-
2010 normals
• Back to 1990
• Durations 1 -72 months
• Can include current month to date
• Designed for quick viewing of many maps
Comparisons: Drought Indicator
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This Month
• “Early Glimpse”
data and images
• Daily • AN81d
• 4-km resolution
• Tmin • Tmax • Tmean • Precip
• BIL and ASC
formats
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Maps = Art
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Prior 6 Months
• “Provisional” data
and images
• Daily and monthly • AN81d, AN81m
• 4-km resolution
• Tmin • Tmax • Tmean • Precip
• BIL and ASC
formats
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Recent Years • “Stable” data
• Jan 1981-Feb 2014
• Daily and monthly • AN81d, AN81m
• 4-km resolution
• Tmin • Tmax • Tmean • Precip
• BIL and ASC
formats
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Historical Past • “Final” data
• Jan 1895-Dec 1980
• Monthly • AN81m
• 4-km resolution
• Tmin • Tmax • Tmean • Precip
• BIL and ASC
formats
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• State
precipitation maps (images)
• 1981-2010 annual normals
• Finished cartographic style
• 72, 150, 300 dpi
Gallery
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Grid Documentation
• FGDC metadata (XML) • Pedigree info (TXT)
– Creation date – PRISM dataset and version – PRISM model version – Processing steps to create the current grid
• Station inventory (CSV)
– ID, name, lat, lon, elevation, network
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Help Documents
• Description of PRISM datasets and networks • Description of data formats • How to download via FTP
• How to download via web service
• Terms of Use (how to cite)
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Upcoming Products
• CONUS atmospheric moisture mapping - RMA (2015)
• New versions of CONUS daily and monthly time series
– RMA (2015)
• New version of point-based time series tool
• NOAA Atlas 14, NE US – NWS (2015)
• Alaska 1981-2010 climate normals - NPS (2016) – Monthly time series?
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Atmospheric Moisture Mapping
1. Monthly mean dew point normals, 1981-2010
2. Monthly min/max VPD normals, 1981-2010
3. Monthly dew point and min/max VPD time series,
1895-present
4. Daily dew point and min/max VPD time series, 1981-
present
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