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<title>Alaska Solar Resource Tilt</title>
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<div class=Section1>
<h1>Alaska Solar Resource Tilt</h1>
<h2>Metadata:</h2>
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<p class=MsoNormal style='margin-left:.5in'><em>Title:</em> Alaska Solar
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<p class=MsoNormal style='margin-left:.5in'>Provide information on the solar
resource potential for the state of Alaska. The insolation values represent the
average solar energy available to a flat plate collector, such as a
photovoltaic panel, oriented due south at an angle from horizontal equal to the
latitude of the collector location. </p>
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<p class=MsoNormal style='margin-left:.5in'>This data provides monthly average
and annual average daily total solar resource averaged over surface cells of
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Climatological Solar Radiation (CSR) Model. The CSR model was developed by the
National Renewable Energy Laboratory for the U.S. Department of Energy.
Specific information about this model can be found in Maxwell, George and
Wilcox (1998) and George and Maxwell (1999). This model uses information on
cloud cover, atmostpheric water vapor and trace gases, and the amount of
aerosols in the atmosphere to calculate the monthly average daily total
insolation (sun and sky) falling on a horizontal surface. The cloud cover data
used as input to the CSR model are an 7-year histogram (1985-1991) of monthly
average cloud fraction provided for grid cells of approximately 40km x 40km in
size. Thus, the spatial resolution of the CSR model output is defined by this
database. The data are obtained from the National Climatic Data Center in
Ashville, North Carolina, and were developed from the U.S. Air Force Real Time
Nephanalysis (RTNEPH) program. Atmospheric water vapor, trace gases, and
aerosols are derived from a variety of sources. The procedures for converting
the collector at latitude tilt are described in Marion and Wilcox (1994). Where
possible, existing ground measurement stations are used to validate the data.
Nevertheless, there is uncertainty associated with the meterological input to
the model, since some of the input parameters are not avalible at a 40km
resolution. As a result, it is believed that the modeled values are accurate to
approximately 10% of a true measured value within the grid cell. Due to terrain
effects and other micoclimate influences, the local cloud cover can vary
significantly even within a single grid cell. Furthermore, the uncertainty of
the modeled estimates increase with distance from reliable measurement sources
and with the complexity of the terrain. </p>
<p class=MsoNormal style='margin-left:.5in'>References: George, R, and E.
Maxwell, 1999: "High-Resolution Maps of Solar Collector Performance Using
A Climatological Solar Radiation Model", Proceedings of the 1999 Annual
Conference, American Solar Energy Society, Portland, ME. Maxwell, E, R. George
and S. Wilcox, "A Climatological Solar Radiation Model", Proceedings
of the 1998 Annual Conference, American Solar Energy Society, Albuquerque NM.
Marion, William and Stephen Wilcox, 1994: "Solar Radiation Data Manual for
Flat-plate and Concentrating Collectors". NREL/TP-463-5607, National
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DISCLAIMED. IN NO EVENT SHALL DOE/NREL BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL
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authorization is obtained from DOE/NREL. The User also understands that
DOE/NREL shall not be obligated to provide updates, support, consulting,
training or assistance of any kind whatsoever with regard to the use of the GIS
data. </p>
<p style='margin-left:.5in'>THE GIS DATA IS PROVIDED "AS IS" AND ANY
EXPRESS OR IMPLIED WARRANTIES, INCLUDING BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
DISCLAIMED. IN NO EVENT SHALL DOE/NREL BE LIABLE FOR ANY SPECIAL, INDIRECT OR
CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER, INCLUDING BUT NOT LIMITED TO
CLAIMS ASSOCIATED WITH THE LOSS OF DATA OR PROFITS, WHICH MAY RESULT FROM AN
ACTION IN CONTRACT, NEGLIGENCE OR OTHER TORTIOUS CLAIM THAT ARISES OUT OF OR IN
CONNECTION WITH THE ACCESS OR USE OF THE GIS DATA. </p>
<p style='margin-left:.5in'>The User acknowledges that access to the GIS data
is subject to U.S. Export laws and regulations and any use or transfer of the
GIS data must be authorized under those regulations. The User shall not use,
distribute, transfer, or transmit GIS data or any products incorporating the
GIS data except in compliance with U.S. export regulations. If requested by
DOE/NREL, the User agrees to sign written assurances and other export-related
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2009012611483800FALSE20120322145415002012032214543100{A4BDD010-776C-4E3C-96EC-F596E8293F6F}Microsoft Windows XP Version 5.1 (Build 2600) Service Pack 3; ESRI ArcCatalog 9.3.0.1770enMonthly and annual average solar resource potential for Alaska.Provide information on the solar resource potential for Alaska. The insolation values represent the average solar energy available to a flat plate collector, such as a photovoltaic panel, oriented due south at an angle from horizontal equal to the latitude of the collector location.This data provides monthly average and annual average daily total solar resource averaged over surface cells of approximatley 40 km by 40 km in size.
This data was developed from the Climatological Solar Radiation (CSR) Model. The CSR model was developed by the National Renewable Energy Laboratory for the U.S. Department of Energy. Specific information about this model can be found in Maxwell, George and Wilcox (1998) and George and Maxwell (1999). This model uses information on cloud cover, atmostpheric water vapor and trace gases, and the amount of aerosols in the atmosphere to calculate the monthly average daily total insolation (sun and sky) falling on a horizontal surface. The cloud cover data used as input to the CSR model are an 7-year histogram (1985-1991) of monthly average cloud fraction provided for grid cells of approximately 40km x 40km in size. Thus, the spatial resolution of the CSR model output is defined by this database. The data are obtained from the National Climatic Data Center in Ashville, North Carolina, and were developed from the U.S. Air Force Real Time Nephanalysis (RTNEPH) program. Atmospheric water vapor, trace gases, and aerosols are derived from a variety of sources. The procedures for converting the collector at latitude tilt are described in Marion and Wilcox (1994). Where possible, existing ground measurement stations are used to validate the data. Nevertheless, there is uncertainty associated with the meterological input to the model, since some of the input parameters are not avalible at a 40km resolution. As a result, it is believed that the modeled values are accurate to approximately 10% of a true measured value within the grid cell. Due to terrain effects and other micoclimate influences, the local cloud cover can vary significantly even within a single grid cell. Furthermore, the uncertainty of the modeled estimates increase with distance from reliable measurement sources and with the complexity of the terrain.
Units are in watt hours.Ray George19990930aktiltaktiltvector digital dataSteve WilcoxGeorge, R, and E. Maxwell, 1999: "High-Resolution Maps of Solar Collector Performance Using A Climatological Solar Radiation Model", Proceedings of the 1999 Annual Conference, American Solar Energy Society, Portland, ME.
Maxwell, E, R. George and S. Wilcox, "A Climatological Solar Radiation Model", Proceedings of the 1998 Annual Conference, American Solar Energy Society, Albuquerque NM.
Marion, William and Stephen Wilcox, 1994: "Solar Radiation Data Manual for Flat-plate and Concentrating Collectors". NREL/TP-463-5607, National Renewable Energy Laboratory, 1617 Cole Boulevard, Golden, CO 80401.
http://www.nrel.gov/gis/cfm/data/GIS_Data_Technology_Specific/United_States/Solar/Low_Resolution/Alaska_PV_Low_Resolution.zipground condition1985010119911231None planned-179.141998-129.99054071.40776151.210815-179.141998-129.99054051.21081571.407761none.solar resoucenoneAlaskaNone.This GIS data was developed by the National Renewable Energy Laboratory ("NREL"), which is operated by the Alliance for Sustainable Energy, LLC for the U.S. Department of Energy ("DOE"). The user is granted the right, without any fee or cost, to use, copy, modify, alter, enhance and distribute this data for any purpose whatsoever, provided that this entire notice appears in all copies of the data. Further, the user of this data agrees to credit NREL in any publications or software that incorporate or use the data.
Access to and use of the GIS data shall further impose the following obligations on the User. The names DOE/NREL may not be used in any advertising or publicity to endorse or promote any product or commercial entity using or incorporating the GIS data unless specific written authorization is obtained from DOE/NREL. The User also understands that DOE/NREL shall not be obligated to provide updates, support, consulting, training or assistance of any kind whatsoever with regard to the use of the GIS data.
THE GIS DATA IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL DOE/NREL BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER, INCLUDING BUT NOT LIMITED TO CLAIMS ASSOCIATED WITH THE LOSS OF DATA OR PROFITS, WHICH MAY RESULT FROM AN ACTION IN CONTRACT, NEGLIGENCE OR OTHER TORTIOUS CLAIM THAT ARISES OUT OF OR IN CONNECTION WITH THE ACCESS OR USE OF THE GIS DATA.
The User acknowledges that access to the GIS data is subject to U.S. Export laws and regulations and any use or transfer of the GIS data must be authorized under those regulations. The User shall not use, distribute, transfer, or transmit GIS data or any products incorporating the GIS data except in compliance with U.S. export regulations. If requested by DOE/NREL, the User agrees to sign written assurances and other export-related documentation as may be required to comply with U.S. export regulations.Shapefile303-275-4669303-384-6981Ray GeorgeNational Renewable Energy LaboratoryScientist303-275-4675Rgeorge@tcplink.nrel.gov9 - 5 Monday - FridayMicrosoft Windows XP Version 5.1 (Build 2600) Service Pack 3; ESRI ArcCatalog 9.3.0.1770aktilt-179.141998-129.9905471.40776151.2108151-179.141998-129.9905471.40776151.2108151enFGDC Content Standards for Digital Geospatial MetadataFGDC-STD-001-1998local timemailing and physical addressGoldenColorado8040115013 Denver West Parkway USA303-275-4626.Pamela Gray-HannNational Renewable Energy Laboratory20120322http://www.esri.com/metadata/esriprof80.htmlESRI Metadata ProfileISO 19115 Geographic Information - MetadataDIS_ESRI1.0datasetDownloadable Data0.8710.871This GIS data was developed by the National Renewable Energy Laboratory ("NREL"), which is operated by the Alliance for Sustainable Energy, LLC for the U.S. Department of Energy ("DOE"). The user is granted the right, without any fee or cost, to use, copy, modify, alter, enhance and distribute this data for any purpose whatsoever, provided that this entire notice appears in all copies of the data. Further, the user of this data agrees to credit NREL in any publications or software that incorporate or use the data.
Access to and use of the GIS data shall further impose the following obligations on the User. The names DOE/NREL may not be used in any advertising or publicity to endorse or promote any product or commercial entity using or incorporating the GIS data unless specific written authorization is obtained from DOE/NREL. The User also understands that DOE/NREL shall not be obligated to provide updates, support, consulting, training or assistance of any kind whatsoever with regard to the use of the GIS data.
THE GIS DATA IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL DOE/NREL BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER, INCLUDING BUT NOT LIMITED TO CLAIMS ASSOCIATED WITH THE LOSS OF DATA OR PROFITS, WHICH MAY RESULT FROM AN ACTION IN CONTRACT, NEGLIGENCE OR OTHER TORTIOUS CLAIM THAT ARISES OUT OF OR IN CONNECTION WITH THE ACCESS OR USE OF THE GIS DATA.
The User acknowledges that access to the GIS data is subject to U.S. Export laws and regulations and any use or transfer of the GIS data must be authorized under those regulations. The User shall not use, distribute, transfer, or transmit GIS data or any products incorporating the GIS data except in compliance with U.S. export regulations. If requested by DOE/NREL, the User agrees to sign written assurances and other export-related documentation as may be required to comply with U.S. export regulations.002file://\\PGRAY-12799S\C\Documents and Settings\PGray\Desktop\GISdatazipfiles\solar_data\extracted_solar\aktilt.shpLocal Area Network0.871ShapefileVectorSimplePolygonFALSE1637FALSEFALSEG-polygon1637GCS_WGS_1984Decimal degrees0.0000000.000000D_WGS_1984WGS_19846378137.000000298.257224GCS_WGS_19841637aktiltFeature Class1637FIDFIDOID400Internal feature number.ESRISequential unique whole numbers that are automatically generated.ShapeShapeGeometry000Feature geometry.ESRICoordinates defining the features.AREAAREANumber123PERIMETERPERIMETERNumber123AVALASKA_AVALASKA_Number11AVALASKA_IAVALASKA_INumber11RTPOLY_RTPOLY_Number11RTPOLY_IDRTPOLY_IDNumber11CELL_IDCELL_IDNumber7COUNTRY_COUNTRY_Number11COUNTRY_IDCOUNTRY_IDNumber11COUNTRYCOUNTRYString2CNTRY_NAMECNTRY_NAMEString40REGIONREGIONString21CONTINENTCONTINENTString13LAND_OCEANLAND_OCEANString9ISLND_RANKISLND_RANKNumber1STAT_FLAGSTAT_FLAGNumber1EECEECNumber1FAOFAONumber1GAGANumber1GA_MEMB_YRGA_MEMB_YRNumber4IAEAIAEANumber1IBRDIBRDNumber1IMFIMFNumber1OPECOPECNumber1SCSCNumber1UNESCOUNESCONumber1WHOWHONumber1WMOWMONumber1X_COORDX_COORDNumber123Y_COORDY_COORDNumber123JANTLTJANTLTNumber5units are in watt hoursFEBTLTFEBTLTNumber5units are in watt hoursMARTLTMARTLTNumber5units are in watt hoursAPRTLTAPRTLTNumber5units are in watt hoursMAYTLTMAYTLTNumber5units are in watt hoursJUNTLTJUNTLTNumber5units are in watt hoursJULTLTJULTLTNumber5units are in watt hoursAUGTLTAUGTLTNumber5units are in watt hoursSEPTLTSEPTLTNumber5units are in watt hoursOCTTLTOCTTLTNumber5units are in watt hoursNOVTLTNOVTLTNumber5units are in watt hoursDECTLTDECTLTNumber5units are in watt hoursANNTLTANNTLTNumber5units are in watt hours20120322