README.md

In dazhiyang/SolarData: Work with freely available solar data

Access and manipulate some publicly available solar data

There are many publicly available solar datasets. This package contains functions to download and manipulate these datasets. Currently available ones include: - NREL Physical Solar Model (PSM) version 3, gridded satellite-derived irradiance data - NREL Oahu Solar Measurement Grid (OSMG), dense sensor network in Oahu, Hawaii - NOAA Surface Radiation (SURFRAD), long-term high-resolution ground-based irradiance data - NASA Shuttle Radar Topography Mission (SRTM), digital elevation model data - SoDa Linke Turbidity Factor (LTF), Linke turbidity data - WRMC Baseline Surface Radiation Network (BSRN), long-term high-resolution ground-based irradiance data

Getting Started

These instructions will get you a copy of the project up and running on your local machine for development and testing purposes.

Prerequisites

This is an R package, so you need to install R on your computer first. In addition, RStudio is an integrated development environment (IDE) for R; it is highly recommended.

Installing

Once R and RStudio are installed. Open R or RStudio and install the devtools package, which allows you to install R package from GitHub

install.packages("devtools")

Load the package that you just installed

library("devtools")

Now, you can install the SolMod package, using

install_github("dazhiyang/SolarData")

Running the tests

This code segment gives an example on how to run transposition modeling (horizontal to tilt) using a variety of models. (This is not up to date)

library("SolarData")

#get SURFRAD data from Goodwin_Creek_MS (gwn) station, for the first three days in 2004
SURFRAD.get(station = 'Goodwin_Creek_MS', year = '2004', day_of_year = c(1:3))

#get PSM data for two locations
PSM.get(lat = c(42.05, 44), lon = c(-124.02, -110), api_key <- 'FVltdchrxzBCHiSNF6M7R4ua6BFe4j81fbPp8dDP', attributes <- 'ghi,dhi,dni,clearsky_dhi,clearsky_dni,clearsky_ghi,solar_zenith_angle', name = 'John+Smith', affiliation = 'Some+Institute', year = '2016', leap_year = 'true', interval = '30', utc = 'false', reason_for_use = 'research', email = '[e-mail]', mailing_list = 'false')

#get SRTM, i.e., digital elevation model, data for two boxes with resolution 3 arcsec
SRTM.list(3, want.plot = TRUE) #check available files
files <- c("Eurasia/N00E072.hgt.zip", "Eurasia/N00E073.hgt.zip")
SRTM.get(resolution = 3, files = files)

License

This package is under the GPL-2 license.

dazhiyang/SolarData documentation built on April 19, 2021, noon