1. Making NASA Data Sets Available with GIS-based Web-Applications for Energy: POWER/SSE v8
Paul Stackhouse, NASA LaRC
Jason Barnett and Tyler Bristow, Booz-Allen-Hamilton at NASA LaRC
William Chandler*, James Hoell, and David Westberg, SSAI at NASA LaRC
And the Atmospheric Science Data Center
* In memoriam to William S. Chandler, principle web developer for early versions SSE/POWER

2. POWER Overview
Objectives: Improve the Nation’s public/private capability for integrating environmental data from NASA research to support increased renewable energy development, building energy efficiency and agricultural modeling.
Goals: Through partnerships, derive/validate/provide parameters relevant to industry needs, link to decision support, and transition capabilities when possible.
Website:
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3. Current POWER/SSE Renewable Energy Data Products
Old POWER (SSE v6)
Achievements:
22 Years (1ox1o, climatology)
Over 200 parameters, many on the fly, customized for renewable energy
Daily time series via Sustainable Buildings and Agroclimatology
Data quality information
Direct connection to 2 energy DSS tools
SSE usage:
>27 Million data requests fulfilled for v 6.0
Approx: 275K hits, 200K downloads, 4-6 GB and 15K users per month
Data requests from 215 nations, islands and territories in 2017 alone
Issues:
Data sets becoming outdated
Data served only in ASCII format
Data backend production not scalable; requires a complete rewrite to reprocess
Original graphics no longer supportable due to software and security issues
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4. New POWER/SSE (v8, GIS) Expands Accessibility with Web Services
POWER Applied Science project aims to make NASA data more accessible
Website is a Responsive Platform for Desktop, Tablet, and Smartphone
New POWER Website serves as a platform for discovery of multiple data access points
Updated data sets with future updates more easily implemented, documented and validated
POWER web site now in beta: power.larc.nasa.gov/new
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5. POWER (v8, GIS): From Data Source to User
MERRA 2
Native meteorological model data is ingested and processed on a recurring cycle and stored. A A
GEOS 1
Native solar model data is ingested on a recurring cycle and averages greater than daily are processed and stored. B 1 3
Data is served to users via Custom Python API utilizing OPeNDAP and Esri ArcGIS Server (Image Services). 2 2
SRB 3.0 3
Users can access the data in commercial and custom applications via Desktop, Tablet and smartphone technologies. B
CERES FLASHFlux
2H-3C
Native Gridded
Model Data
Data Not
Distributed*
Data
Distributed
Data
Stored
Recurring
Python Scripts
Server with
Enterprise GeoDatabase
Web
Server
Users Access On
Responsive Platform
* Data may become available in future depending on resources and user requirements.
Icons Source: (Creative Commons 3.0)

6. POWER (v8 GIS): Two Main Data Accessibility Options
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7. POWER (v8, GIS): Interactive Data Access Viewer
Graphical Data Access
- ½ x ½ deg; within 5-7 days of obs
- multiple parameters from FLASHFlux, GMAO, etc. available
- parameters arranged by application community (i.e., renewable energy, buildings, agroclimatology)
- Multiple data output formats
Three Applications (initial version):
- Time series at a single point (daily, monthly, up to 30 years*)
- Regional times series (limited area)
- Global climatology (30 year*)
(* initially 30 years for surface meteorology; 22 years for solar)
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8. POWER (v8, GIS): Interactive Data Access Viewer
Single Point Time series
Select community
Select daily, monthly or climatology
Select location
Select time period
Select output format
Select parameter
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9. POWER (v8, GIS): Interactive Data Access Viewer
Regional Data Access
Select community
Select daily, monthly or climatology
Select region (limited to 2.5ox2.5o)
Select time period
Select output format
Select parameter
Global Climatology
Select community
Select output format
Select parameter (Currently 30 year average for met/22 for solar)
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10. POWER (v8, GIS): ArcGIS Image Services (future)
Future Image Services
Plan to migrate current SSE-GIS capabilities (see
OGC compliant (opensource)
Includes all available parameters for climatological values
Background maps with support for image tools
Time series slider and swiping tools, etc.
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11. POWER (v8, GIS): Accessing Data with API Service
Complete instructions to setup up URL based data access (API using OPeNDAP)
Provide immediate access to the data parameters and time periods required
Returned file formatted for general software (Excel, GRaDs, MatLab) or customized script/coding for Decision Support Tools (RETScreen, HOMER)
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12. POWER (v8, GIS): Usage tracking with Google Analytics and Log file analysis
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13. POWER (v8, GIS): Enabling Data Usage Applications
Visualization & Analysis
Panoply (Image display)
NetCDF, OPeNDAP
Esri ArcGIS Suite (GIS applications)
NetCDF, OPeNDAP, ArcGIS Image Services, ArcGIS GP Services, ArcGIS Toolbox, GeoTIFF, Shapefile
MatLab/GRaDS (analysis & graphics)
Netcdf, OPeNDAP, GeoTiff
QGIS/MapBox/Leaflet (GIS and mapping)
OGC Web Map Service, OGC Web Process Service, GeoTIFF
DSSAT (crop modeling standards)
ICASA format
Microsoft Office
CSV, ASCII
R Statistics
NetCDF, CSV
ERDAS Imagine
NetCDf, GeoTiff
Supported Programming
Python
Esri ArcGIS for Python API, ArcGIS Image Service REST Endpoint, ArcGIS Toolbox Functions, OPeNDAP, ArcGIS GP Services, JSON, CSV, Shapefile, GeoTIFF, NetCDF
JavaScript
Esri ArcGIS For JavaScript API, ArcGIS Image Services, ArcGIS GP Services, JSON, CSV
Microsoft .NET
ArcGIS Runtime SDK for .NET, ArcGIS Image Services, ArcGIS GP Services, JSON, CSV
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14. POWER (v8, GIS): Continued Solar Irradiance Parameter Improvement & Validation
POWER (v8): Uses SRB Rel 3 with CERES FLASHFlux (replicated to ½o x ½o)
Supersede FLASHFlux with CERES SYN1Deg
Supersede Direct/Diffuse using improved DirIndex
POWER (v9): First hourly data set
30+ years: Supersedes SRB Rel 3, 1o x 1o with Rel 4 at true ½ o x ½ o (late )
10+ year: CERES SYN1Deg only 1ox1o data set with MERRA-2 (hourly, early )
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15. POWER (v8, GIS): Continued Meteorological Improvement and Validation Using NOAA GSOD Sites
Source data NASA GMAO MERRA-2 compared to NOAA GSOD (Sites: , every 3rd year)
GMAO data sets updated as new versions become available
Tmean
Tmin
Tmax
Tdpt
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16. Summary and Conclusions
Data Access Viewer:
Point, regional and global data access
Multiple solar related and meteorological parameters available
Output formats including: ASCII, CSV, netCDF, GeoJSON, and GeoTiff
Specialized formats including ICASA for crop modeling
Support now provided for multiple propriety and Opensource GIS, web mapping and data analysis tools through OGC compliance
POWER (v8) web site represents a complete revitalization of old SSE web site (now in Beta):
New data set from NASA GMAO MERRA-2
Climatological and time series available using CERES data
Data accessible through:
Data Access Viewer: GIS based web applications
Web data services: provision through API and GeoJSON queries
Try it in Beta at:
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17. Extras
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18. Historical SSE User Statistics by Version
Data
Requests
Web
Hits
Data Volume
(GB)
Unique Users
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