aktilt

Metadata also available as

Metadata:

Identification_Information:

Citation:

Citation_Information:

Originator: Ray George

Originator: Steve Wilcox

Publication_Date: 19990930

Title: aktilt

Geospatial_Data_Presentation_Form: vector digital data

Other_Citation_Details:

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 Renewable Energy Laboratory, 15013 Denver West Parkway, Golden, CO 80401.

Online_Linkage:

<http://www.nrel.gov/gis/cfm/data/GIS_Data_Technology_Specific/United_States/Solar/Low_Resolution/Alaska_PV_Low_Resolution.zip>

Description:

Abstract: Monthly and annual average solar resource potential for Alaska.

Purpose:

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.

Supplemental_Information:

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.

Time_Period_of_Content:

Time_Period_Information:

Range_of_Dates/Times:

Beginning_Date: 19850101

Ending_Date: 19911231

Currentness_Reference: ground condition

Status:

Progress: Complete

Maintenance_and_Update_Frequency: None planned

Spatial_Domain:

Bounding_Coordinates:

West_Bounding_Coordinate: -179.141998

East_Bounding_Coordinate: -129.990540

North_Bounding_Coordinate: 71.407761

South_Bounding_Coordinate: 51.210815

Keywords:

Theme:

Theme_Keyword_Thesaurus: none.

Theme_Keyword: solar resouce

Place:

Place_Keyword_Thesaurus: none

Place_Keyword: Alaska

Access_Constraints: None.

Use_Constraints:

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.

Point_of_Contact:

Contact_Information:

Contact_Person_Primary:

Contact_Person: Ray George

Contact_Organization: National Renewable Energy Laboratory

Contact_Position: Scientist

Contact_Voice_Telephone: 303-275-4669

Contact_Voice_Telephone: 303-384-6981

Contact_Facsimile_Telephone: 303-275-4675

Contact_Electronic_Mail_Address: Rgeorge@tcplink.nrel.gov

Hours_of_Service: 9 - 5 Monday - Friday

Native_Data_Set_Environment:

Microsoft Windows XP Version 5.1 (Build 2600) Service Pack 3; ESRI ArcCatalog 9.3.0.1770

Data_Quality_Information:

Lineage:

Spatial_Data_Organization_Information:

Direct_Spatial_Reference_Method: Vector

Point_and_Vector_Object_Information:

SDTS_Terms_Description:

SDTS_Point_and_Vector_Object_Type: G-polygon

Point_and_Vector_Object_Count: 1637

Spatial_Reference_Information:

Horizontal_Coordinate_System_Definition:

Geographic:

Latitude_Resolution: 0.000000

Longitude_Resolution: 0.000000

Geographic_Coordinate_Units: Decimal degrees

Geodetic_Model:

Horizontal_Datum_Name: D_WGS_1984

Ellipsoid_Name: WGS_1984

Semi-major_Axis: 6378137.000000

Denominator_of_Flattening_Ratio: 298.257224

Entity_and_Attribute_Information:

Detailed_Description:

Entity_Type:

Entity_Type_Label: aktilt

Attribute:

Attribute_Label: FID

Attribute_Definition: Internal feature number.

Attribute_Definition_Source: ESRI

Attribute_Domain_Values:

Unrepresentable_Domain:

Sequential unique whole numbers that are automatically generated.

Attribute:

Attribute_Label: Shape

Attribute_Definition: Feature geometry.

Attribute_Definition_Source: ESRI

Attribute_Domain_Values:

Unrepresentable_Domain: Coordinates defining the features.

Attribute:

Attribute_Label: AREA

Attribute:

Attribute_Label: PERIMETER

Attribute:

Attribute_Label: AVALASKA_

Attribute:

Attribute_Label: AVALASKA_I

Attribute:

Attribute_Label: RTPOLY_

Attribute:

Attribute_Label: RTPOLY_ID

Attribute:

Attribute_Label: CELL_ID

Attribute:

Attribute_Label: COUNTRY_

Attribute:

Attribute_Label: COUNTRY_ID

Attribute:

Attribute_Label: COUNTRY

Attribute:

Attribute_Label: CNTRY_NAME

Attribute:

Attribute_Label: REGION

Attribute:

Attribute_Label: CONTINENT

Attribute:

Attribute_Label: LAND_OCEAN

Attribute:

Attribute_Label: ISLND_RANK

Attribute:

Attribute_Label: STAT_FLAG

Attribute:

Attribute_Label: EEC

Attribute:

Attribute_Label: FAO

Attribute:

Attribute_Label: GA

Attribute:

Attribute_Label: GA_MEMB_YR

Attribute:

Attribute_Label: IAEA

Attribute:

Attribute_Label: IBRD

Attribute:

Attribute_Label: IMF

Attribute:

Attribute_Label: OPEC

Attribute:

Attribute_Label: SC

Attribute:

Attribute_Label: UNESCO

Attribute:

Attribute_Label: WHO

Attribute:

Attribute_Label: WMO

Attribute:

Attribute_Label: X_COORD

Attribute:

Attribute_Label: Y_COORD

Attribute:

Attribute_Label: JANTLT

Attribute_Definition: units are in watt hours

Attribute:

Attribute_Label: FEBTLT

Attribute_Definition: units are in watt hours

Attribute:

Attribute_Label: MARTLT

Attribute_Definition: units are in watt hours

Attribute:

Attribute_Label: APRTLT

Attribute_Definition: units are in watt hours

Attribute:

Attribute_Label: MAYTLT

Attribute_Definition: units are in watt hours

Attribute:

Attribute_Label: JUNTLT

Attribute_Definition: units are in watt hours

Attribute:

Attribute_Label: JULTLT

Attribute_Definition: units are in watt hours

Attribute:

Attribute_Label: AUGTLT

Attribute_Definition: units are in watt hours

Attribute:

Attribute_Label: SEPTLT

Attribute_Definition: units are in watt hours

Attribute:

Attribute_Label: OCTTLT

Attribute_Definition: units are in watt hours

Attribute:

Attribute_Label: NOVTLT

Attribute_Definition: units are in watt hours

Attribute:

Attribute_Label: DECTLT

Attribute_Definition: units are in watt hours

Attribute:

Attribute_Label: ANNTLT

Attribute_Definition: units are in watt hours

Distribution_Information:

Resource_Description: Downloadable Data

Distribution_Liability:

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.

Standard_Order_Process:

Digital_Form:

Digital_Transfer_Information:

Transfer_Size: 0.871

Metadata_Reference_Information:

Metadata_Date: 20111209

Metadata_Contact:

Contact_Information:

Contact_Person_Primary:

Contact_Person: Pamela Gray-Hann

Contact_Organization: National Renewable Energy Laboratory

Contact_Address:

Address_Type: mailing and physical address

Address: 15013 Denver West Parkway

City: Golden

State_or_Province: Colorado

Postal_Code: 80401

Country: USA

Contact_Voice_Telephone: 303-275-4626.

Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata

Metadata_Standard_Version: FGDC-STD-001-1998

Metadata_Time_Convention: local time

Metadata_Extensions:

Online_Linkage: <http://www.esri.com/metadata/esriprof80.html>

Profile_Name: ESRI Metadata Profile

Generated by mp version 2.9.6 on Fri Dec 09 11:23:57 2011