Metadata
also available as
Identification_Information:
Citation:
Citation_Information:
Originator: SUNY Albany and NREL
Publication_Date: Unknown
Title:
us9805_dni
Geospatial_Data_Presentation_Form: vector digital data
Other_Citation_Details:
Perez, R., P. Ineichen, K. Moore, M.Kmiecik, C. Chain, R. George and F. Vignola (2002): A New
Operational Satellite-to-Irradiance Model. Solar Energy
Online_Linkage:
Description:
Abstract:
Monthly and annual average
solar resource potential for 48 Contiguous United States.
Purpose:
Provide information on the solar resource potential for the
48 contiguous states.
Supplemental_Information:
This data provides monthly average and annual average daily
total solar resource averaged over surface cells of 0.1 degrees in both
latitude and longitude, or about 10 km in size. This data was developed using
the State University of New York/Albany satellite radiation model. This model
was developed by Dr. Richard Perez and collaborators at the National Renewable
Energy Laboratory and other universities for the U.S. Department of Energy.
Specific information about this model can be found in Perez, et al. (2002).
This model uses hourly radiance images from geostationary weather satellites,
daily snow cover data, and monthly averages of atmospheric water vapor, trace
gases, and the amount of aerosols in the atmosphere to calculate the hourly
total insolation (sun and sky) falling on a
horizontal surface. Atmospheric water vapor, trace gases, and aerosols are
derived from a variety of sources. A modified Bird model is used to calculate
clear sky direct normal (DNI). This is then adjusted as a function of the ratio
of clear sky global horizontal (GHI) and the model predicted GHI. 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 avalable at a 10km resolution. As a result, it is believed
that the modeled values are accurate to approximately 15% of a true measured
value within the grid cell. Due to terrain effects and other microclimate
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.
Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 19980101
Beginning_Time: 00 Z
Ending_Date: 20051231
Ending_Time: 23 Z
Currentness_Reference: ground condition
Status:
Progress: Complete
Maintenance_and_Update_Frequency: As needed
Spatial_Domain:
Bounding_Coordinates:
West_Bounding_Coordinate: -125.100000
East_Bounding_Coordinate: -66.500000
North_Bounding_Coordinate: 49.700000
South_Bounding_Coordinate: 24.200000
Keywords:
Theme:
Theme_Keyword: Resource Potential
Theme_Keyword: Solar Resource
Theme_Keyword: Direct Normal
Place:
Place_Keyword: Contiguous United States
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_Organization_Primary:
Contact_Organization: NREL
Contact_Voice_Telephone: 303-275-4669
Contact_Electronic_Mail_Address: ray_george@NREL.gov
Data_Set_Credit: NREL
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: 90508
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: us9805_dni
Entity_Type_Definition: data is shown in watt hours
per meter squared per day
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: ID
Attribute:
Attribute_Label: GRIDCODE
Attribute:
Attribute_Label: LON
Attribute:
Attribute_Label: LAT
Attribute:
Attribute_Label: DNI01
Attribute_Definition:
Jan - all monthly and annual values are shown in
watt-hours/m2/day (divide by 1000 to get KW)
Attribute:
Attribute_Label: DNI02
Attribute_Definition: FEB
Attribute:
Attribute_Label: DNI03
Attribute_Definition: MAR
Attribute:
Attribute_Label: DNI04
Attribute_Definition: APR
Attribute:
Attribute_Label: DNI05
Attribute_Definition: MAY
Attribute:
Attribute_Label: DNI06
Attribute_Definition: JUN
Attribute:
Attribute_Label: DNI07
Attribute_Definition: JUL
Attribute:
Attribute_Label: DNI08
Attribute_Definition: AUG
Attribute:
Attribute_Label: DNI09
Attribute_Definition: SEP
Attribute:
Attribute_Label: DNI10
Attribute_Definition: OCT
Attribute:
Attribute_Label: DNI11
Attribute_Definition: NOV
Attribute:
Attribute_Label: DNI12
Attribute_Definition: DEC
Attribute:
Attribute_Label: DNIANN
Attribute_Definition: ANNUAL
Distribution_Information:
Resource_Description: Downloadable Data
Standard_Order_Process:
Digital_Form:
Digital_Transfer_Information:
Transfer_Size: 11.739
Metadata_Reference_Information:
Metadata_Date: 20111209
Metadata_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: NREL
Contact_Person: Pamela Gray-Hann
Contact_Address:
Address_Type: mailing address
Address: 15013 Denver West Parkway
City:
Golden
State_or_Province: Colorado
Postal_Code: 80401
Country: USA
Contact_Voice_Telephone: 303-275-4626
Contact_Electronic_Mail_Address: pamela.gray.hann@nrel.gov
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
09:53:18 2011