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Energy Efficiency and RETScreen Version 4. NASA Derived and Validated Climate Data For RETScreen Use: Description and Access. Paul Stackhouse NASA Langley Research Center Charles Whitlock, Bill Chandler, Jim Hoell, Dave Westberg, and Taiping Zhang Science Systems Analysis, Inc.

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Energy Efficiency and RETScreen Version 4

NASA Derived and Validated Climate Data For RETScreen Use: Description and Access

Paul Stackhouse

NASA Langley Research Center

Charles Whitlock, Bill Chandler, Jim Hoell,

Dave Westberg, and Taiping Zhang

Science Systems Analysis, Inc.


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NASA Strategic Goals and Applied Sciences

  • NASA Strategic Goal 3: Develop a balanced overall program of science, exploration, and aeronautics ….

    • NASA Sub-goal 3A: Study Earth from space to advance scientific understanding and meetsocietal needs.

  • NASA’s Earth science program:

    • develop a scientific understanding of Earth’s system and its response to natural or human-induced changes

    • to improve prediction of climate, weather, and natural hazards

    • partner for global modeling and assimilation of observations for science and applications

  • NASA’s Earth Applied Sciences program:

    • benchmark NASA research results into policy and management decision-support tools

    • support tools vital for the Nation’s environment, economy, safety, and security.

NASA Langley Research Center


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Researching Science Questions

  • How is the global Earth system changing?

  • What are the primary forcings of the Earth system?

  • How does the Earth system respond to natural and human-induced changes?

  • What are the consequences of changes inthe Earth system for human civilization?

  • How well can we predict future changes to the Earth system?

Water Cycle

Energy

Cycle

NASA Langley Research Center


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NASA Observing Spacecraft for Earth System Research

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NASA Langley Research Center


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Earth System Science Models for Research and Applications

Suites of Earth System Science Models

NASA Langley Research Center


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NASA Applied Science:POWER Project

  • Prediction of Worldwide Energy Resource

  • Objective: Improve the Nation’s public and private capability for integrating environmental data into sound management of energy production and energy efficiency systems.

  • Goals:

    • Establish partnerships to facilitate the integration and adaptation of NASA satellite analysis and modeling data into electric power industry Decision Support System’s (DSS) and databases.

    • Target such datasets for Electric Power, Renewable Energy, Energy-Efficient Building Design and Biomass Crop Development Industries

    • Transition operational capabilities to government and/or private sector entities.

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NASA Langley Research Center


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POWER Historical Data Sets

Applied Science Outcome

Earth Science Research

SSE

NASA Satellite Measurements, Analysis and Modeling

SSE Web Site

http://eosweb.larc.nasa.gov/sse/

> 200 solar and meteorology parameters; averaged from 23 years of data

Terra

Aqua

SRB

GMAO

Growing over the last 8 years to nearly 30,000 users, 7.5 million hits and 1.4 million data downloads

NASA Langley Research Center


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NASA Parameters For RETScreen

  • Partner Requested Data from NASA:

  • RETScreen (NRCan/CETC)

  • SWERA (UNEP GRID/

  • USGS, NREL)

  • MiniCAM (PNNL)

  • etc

NASA Langley Research Center


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RETScreen’s Use of POWER Climate Data

RETScreen Climate Database

  • NASA directly delivered data used for Database

  • Surface measurements for cities from RETScreen (red dots)

  • NASA data used when surface measurements unavailable (blue dots)

NASA data

In Situ data

  • Data for locations between points are provided through a direct link to NASA SSE.

NASA Langley Research Center


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Retrieving NASA ParametersSSE Release 6.0

NASA Langley Research Center


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NASA Data Project Improvements

  • Meteorological Products

    • Improved Atmospheric model and assimilation system

    • Surface parameters computed at doubled the spatial resolution

    • Improved validation relative to US/NOAA National Climate Data Center; observations matched in time and space

  • Solar Energy products

    • Improved solar energy algorithms including total, direct and diffuse irradiance and related products

    • Improved validation using longer records of more accurate surface measurements

  • Improved SSE Data Interface

    • SSE retrieved data sets now include enhanced parameter sets

    • SSE Release 6.0 include regional and daily averaged data sets

NASA Langley Research Center


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Overall Accuracy of NASA:Supplied Parameters

Monthly Averaged Assessment Statistics

() = 60o N - 60o S; na = not applicable; nya = not yet available

NASA Langley Research Center


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Example Parameters from NASA:Solar Radiation Times Series

NASA Langley Research Center


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Example Parameters from NASA:All-sky Direct Normal Surface Irradiance

NASA Langley Research Center


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Example Parameters from NASA:

Heating Degree-Days (10-meter)

NASA Langley Research Center


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Example Parameters from NASA:Cooling Degree-Days (10-meter)

NASA Langley Research Center


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Example Parameters from NASA:Relative Humidity (10-meter)

NASA Langley Research Center


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Example Parameters from NASA:Earth Skin Temperature

NASA Langley Research Center


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Decade to Decade Changes:Solar Radiation Changes

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NASA Langley Research Center


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Decade to Decade Changes:Air Temperature Changes (10-meter)

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2

3

NASA Langley Research Center


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Decade to Decade Changes:Cooling Degree Day Changes (10-meter)

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3

NASA Langley Research Center


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Summary and Conclusions

  • NASA’s Earth Science Program is aimed atanswering critical questions involving the Earth-Atmosphere system using improved satellite analysis and earth systems science modeling

  • NASA’s Applied Science Program is aimed attransitioning this information to respond to societal and industrial needs

  • NASA’s POWER project has demonstrated the potential impact of this information through our continued partnership with RETScreen

  • The latest release of RETScreen combines it’s advanced capabilities for clean energy projects worldwide with the progress of NASA’s research.

  • NASA data sets now provide:

    • 23 years of global parameters required by RETScreen

    • More comprehensive validation for parameter estimates

    • Upcoming SSE release to make time series and regional data obtainable

NASA Langley Research Center


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