NREL 30-Second ASI Timeseries April 4-21, 2019

Citation Author(s):
Peter
Shaffery
University of Colorado Boulder
Afshin
Andreas
National Renewable Energy Laboratory
Manajit
Sengupta
National Renewable Energy Laboratory
Aron
Habte
National Renewable Energy Laboratory
Marcos
Netto
National Renewable Energy Laboratory
Venkat
Krishnan
National Renewable Energy Laboratory
Submitted by:
Peter Shaffery
Last updated:
Mon, 05/18/2020 - 19:37
DOI:
10.21227/1s3y-9e64
License:
0
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Abstract 

 

All Sky Imagers or Total Sky Imagers (ASIs or TSIs) have substantial promise as scalable sensors for solar resource estimation and forecasting. ASI images are high-resolution fisheye images containing large amounts of sky content. This dataset contains ASI images taken at a 30-second time resolution, over a period of 17 days during April 2019 using an all-sky imager model ASI-16 by EKO Instrument. These images were used to test an automated clear sky image selection algorithm, however they can be used for a variety of other purposes including cloud position forecasting or solar irradiance estimation. 

Instructions: 

The dataset is stored as a tarball (.tar.gz). Data can be extracted on most Linux systems using the command `tar -xzvf ASIs.tar.gz`. On MacOS systems the Archive Utility should be able to extract .tar.gz files by default. On Windows systems third-party software such as 7zip is available to extract tarballs. Alternatively the Windows Linux Subsystem can be used with the command `tar -xzvf ASIs.tar.gz`.