NASAaccess

An R package that can generate gridded ASCII tables of climate (CIMP5) and weather data (GPM, TRMM, GLDAS) needed to drive various hydrological models (e.g. SWAT, VIC, RHESSys).
https://github.com/nasa/NASAaccess

Category: Climate Change
Sub Category: Climate Data Processing and Analysis

Last synced: about 9 hours ago
JSON representation

Repository metadata

NASAaccess is R package that can generate gridded ascii tables of climate (CIMP5) and weather data (GPM, TRMM, GLDAS) needed to drive various hydrological models (e.g., SWAT, VIC, RHESSys, ..etc)

• Host: GitHub
• URL: https://github.com/nasa/NASAaccess
• Owner: nasa
• License: other
• Created: 2019-03-11T20:21:28.000Z (over 6 years ago)
• Default Branch: master
• Last Pushed: 2024-01-14T16:25:48.000Z (almost 2 years ago)
• Last Synced: 2025-10-26T05:40:17.434Z (9 days ago)
• Language: R
• Size: 10 MB
• Stars: 86
• Watchers: 8
• Forks: 23
• Open Issues: 1
• Releases: 13
• Metadata Files:
  • Readme: README.Rmd
  • License: LICENSE

README.Rmd

          ---
output: github_document
---



```{r, include = FALSE}
knitr::opts_chunk$set(
  collapse = TRUE,
  comment = "#>",
  fig.path = "man/figures/README-",
  out.width = "100%"
)
```

# NASAaccess



[![Anaconda-Server Badge](https://anaconda.org/conda-forge/r-nasaaccess/badges/version.svg)](https://anaconda.org/conda-forge/r-nasaaccess) [![Anaconda-Server Badge](https://anaconda.org/conda-forge/r-nasaaccess/badges/downloads.svg)](https://anaconda.org/conda-forge/r-nasaaccess) [![Anaconda-Server Badge](https://anaconda.org/conda-forge/r-nasaaccess/badges/platforms.svg)](https://anaconda.org/conda-forge/r-nasaaccess) [![](https://img.shields.io/readthedocs/nasaaccess?style=social)](https://nasaaccess.readthedocs.io/en/latest/index.html) [![](https://img.shields.io/github/stars/nasa/nasaaccess?style=social)](https://github.com/nasa/NASAaccess)

```{=html}

```
[*Ibrahim N. Mohammed*](https://science.gsfc.nasa.gov/sed/bio/ibrahim.mohammed "Ibrahim N. Mohammed")

## **What is NASAaccess?**

*NASAaccess* is a software application in the form of a [R](https://www.r-project.org/about.html) package, a [conda](https://docs.conda.io/en/latest/) package, and a [Tethys](https://www.tethysplatform.org/) web application. *NASAaccess* software can generate gridded ascii tables of climate [CMIP5](https://pcmdi.llnl.gov/mips/cmip5/ "Coupled Model Intercomparison Project Phase 5"), [CMIP6](https://pcmdi.llnl.gov/CMIP6/ "Coupled Model Intercomparison Project Phase 6"), and earth observation remote sensing data ([GPM](https://gpm.nasa.gov/data/directory "Global Precipitation Measurement"), [TRMM](https://gpm.nasa.gov/missions/trmm "Tropical Rainfall Measuring Mission"), [GLDAS](https://ldas.gsfc.nasa.gov/gldas "Global Land Data Assimilation System")) needed to drive various hydrological models (e.g., [SWAT](https://swat.tamu.edu/ "Soil & Water Assessment Tool"), [VIC](https://github.com/UW-Hydro/VIC "Variable Infiltration Capacity"), [RHESSys](https://github.com/RHESSys/RHESSys "The Regional Hydro-Ecological Simulation System"), ...etc.). The *NASAaccess* Tethys web-based application can be used for accessing, reformatting, and visualizing climate and earth observation remote sensing gridded time series data as well.

## **Where to find the NASAaccess software?**

-   R package can be downloaded from GitHub at .

-   Conda package can be installed directly from *Anaconda* by searching for `r-nasaaccess`.

-   Tethys web-based application can directly installed from GitHub at .

## **How NASAaccess software is distributed?**

*NASAaccess* is an open-source software package under [NASA Open Source Agreement v1.3](https://opensource.org/license/nasa1-3-php/).

## **What is needed to install the NASAaccess software on my local machine?**

### **R Library**

On a local machine the user should have installed the following programs as well as setting up a user account. The list below gives a summary of what is needed to be done prior to work with NASAaccess software on any local machine:

-   [Installing R software](https://www.r-project.org/)

-   [Installing Rstudio software](https://posit.co/) (OPTIONAL)

-   *NASAaccess* R package needs a user registration access with [Earthdata](https://www.earthdata.nasa.gov/). Users should set up a registration account(s) with [Earthdata](https://www.earthdata.nasa.gov/) login as well as well as authorizing [NASA](https://www.nasa.gov/ "The National Aeronautics and Space Administration") [GES DISC](https://disc.gsfc.nasa.gov/) data access. Please refer to  Data Access section for further details.

-   [*curl*](https://curl.se/) software . Since Mac users have [*curl*](https://curl.se/) as part of macOS build, Windows users should make sure that their local machines build have [*curl*](https://curl.se/) installed properly.

      -   Checking if you can run [*curl*](https://curl.se/) from your command prompt. Type `curl --help` and you should see the help pages for the [*curl*](https://curl.se/) program once everything is defined correctly.

-   Within Rstudio or R terminal run the following commands to install *NASAaccess*:

    -   `library(devtools)`

    -   `install_github("nasa/NASAaccess", build_vignettes = TRUE)`

    -   `library(NASAaccess)`

Within the Rstudio help tab the user can verify that the package has been installed and browse the help pages of the various functions of *NASAaccess*. The [GES DISC](https://disc.gsfc.nasa.gov/) user registration access logging information will be processed by masking (i.e., not displaying the lieteral typed text as input) on most but not all platforms. Without providing [GES DISC](https://disc.gsfc.nasa.gov/) user registration access logging information, the user will receive '*You need to provide your Earthdata GES DISC login to proceed...*' message.

### **Conda Package**
-   *NASAaccess* conda package needs a user registration access with [Earthdata](https://www.earthdata.nasa.gov/). Users should set up a registration account(s) with [Earthdata](https://www.earthdata.nasa.gov/) login as well as well as authorizing [NASA](https://www.nasa.gov/ "The National Aeronautics and Space Administration") [GES DISC](https://disc.gsfc.nasa.gov/) data access. Please refer to  Data Access section for further details.

    -   Creating the *.netrc* file at the user machine *Home* directory and storing the user [NASA](https://www.nasa.gov/ "The National Aeronautics and Space Administration") [GES DISC](https://disc.gsfc.nasa.gov/) logging information in it is done automatically to execute the *NASAaccess* package commands. Accessing data from NASA servers is further explained at [Here](https://wiki.earthdata.nasa.gov/display/EL/How+To+Access+Data+With+cURL+And+Wget). The [GES DISC](https://disc.gsfc.nasa.gov/) user registration access logging information will be processed by masking in the terminal on any major OS. Without providing [GES DISC](https://disc.gsfc.nasa.gov/) user registration access logging information, the user will receive '*You need to provide your Earthdata GES DISC login to proceed...*' message.
    
    
-   To install *NASAaccess* package in a conda environment run the following:

``` python
conda install -c conda-forge r-nasaaccess
```

### **Tethys web-based Application**

Full details on installing the web-based application of *NASAaccess* on single machines and local servers can be found at [readthedocs](https://nasaaccess.readthedocs.io/en/latest/nasaaccess_tethys.html).

## **Is there a walk through examples for NASAaccess software?**

Software users are encouraged to visit () to learn more on *NASAaccess* functionality and capabilities.

## **How to cite R NASAaccess package?**

```{r}
citation(package = 'NASAaccess')

```

## Reference

Mohammed, I.N., Bustamante, E.G.R., Bolten, J.D., Nelson, E.J., 2023. Technical note: NASAaccess – a tool for access, reformatting, and visualization of remotely sensed earth observation and climate data. Hydrol. Earth Syst. Sci. 27, 3621-3642, https://doi.org/10.5194/hess-27-3621-2023

        

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Owner metadata

• Name: NASA
• Login: nasa
• Email: nasa-data@lists.arc.nasa.gov
• Kind: organization
• Description: ReadOpen Data initiative here: https://www.nasa.gov/open/ & Instructions here: https://github.com/nasa/nasa.github.io/blob/master/docs/INSTRUCTIONS.md
• Website: https://github.com/nasa/nasa.github.io/blob/master/docs/INSTRUCTIONS.md
• Location: United States of America
• Twitter:
• Company:
• Icon url: https://avatars.githubusercontent.com/u/848102?v=4
• Repositories: 565
• Last ynced at: 2025-09-25T14:02:59.385Z
• Profile URL: https://github.com/nasa

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GitHub Events

Total

• Watch event: 5
• Fork event: 2

Last Year

• Watch event: 5
• Fork event: 2

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Committers metadata

Last synced: 12 days ago

Name	Email	Commits
imohamme	i****d@n****v	66

Committer domains:

• nasa.gov: 1

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Issue and Pull Request metadata

Last synced: 2 months ago

More stats: https://issues.ecosyste.ms/repositories/lookup?url=https://github.com/nasa/NASAaccess

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Dependencies

Score: 4.465908118654584