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nasapower 4.2.1

CRAN release: 2024-05-18

Bug Fixes

  • Fixes Issue where querying all parameters failed.

nasapower 4.2.0

CRAN release: 2024-02-02

Minor Changes

  • Two new functions are added:

    • query_surfaces(): Query the POWER API for Detailed Information on Wind Type Surfaces

    • query_groupings(): Query the POWER API for Detailed Information on Available Parameter Groupings

  • query_parameters now allows you to retrieve rich metadata for the parameters.

  • Error, warning and other informational messages are now all formatted with {cli} for more attractive and informative messages.

  • The username passed along to the POWER API is now “nasapower4r” to support other packages built on {nasapower} that could use {vcr} in tests. Previously the user agent string took the version of {nasapower} and appended it, e.g., “nasapower410” for v4.1.0. Doing so breaks tests in packages relying on {nasapower} due to incompatibilities in cassettes, while not affecting functionality.

Bug fixes

  • Fixes a bug that allowed users to send requests to the API for hourly data over a region. The API does not support this and this client now provides a user-friendly error when it is attempted.

nasapower 4.1.0

CRAN release: 2023-12-05

Bug fixes

  • Fix formula in documentation that didn’t display properly in HTML.

  • Fix non-functional link in documentation.

  • Fix code coverage badging.

Minor changes

  • Use {cli} and {rlang} for clear messages for end users.

  • Use argument matching for function arguments where practical.

  • The temporal_api argument of get_power() now defaults to “daily”, previously it had no default value.

  • The temporal_average argument for get_power() has now been removed after being deprecated and issuing a message to users to use temporal_api instead since release 4.0.0.

nasapower 4.0.11

CRAN release: 2023-08-19

Bug fixes

  • Replaces & or | with the proper && or ||.

  • Corrects documentation titles for functions to be title case.

  • Fixes the CRAN badge in the README.

  • Updates {vcr} configuration files for testing.

Minor changes

  • Reorder README to stress that this is not the data source and should not be cited as such.

  • Tidy up minor bits-n-pieces in documentation to make it nicer, e.g., grammar corrections, using \dQuote{} rather than ““” in ROxygen.

  • Uses sprintf() rather than paste() where possible.

  • Update {vcr} configuration and infrastructure to use .json cassettes.

nasapower 4.0.10

CRAN release: 2023-02-25

  • Update CITATION file to follow CRAN’s ~ever-changing whims~ guidelines.

nasapower 4.0.9

CRAN release: 2023-01-05

  • Remove an example that no longer works with the API.

  • Remove incorrect documentation about rate limiting and include details on how to use rate limiting.

  • Ensure tests are skipped on CRAN, thanks Maëlle!

  • Use skip_if_offline() rather than skip_on_cran() for tests.

nasapower 4.0.8

CRAN release: 2022-08-13

nasapower 4.0.7

CRAN release: 2022-04-10

  • Adds new time_standard parameter to get_power() as requested in ##70.

  • Updates internal list of accepted POWER parameters.

nasapower 4.0.6

CRAN release: 2022-02-28

Bug fixes

  • Fixes bug when requesting site_elevation. Thanks to @daniel_althoff for reporting this bug Issue 69.

  • Fixes bug where wind_elevation and wind_surface were not properly passed along to the API.

Minor changes

  • Fixes redundant and broken tests by removing or updating new tests.

nasapower 4.0.5

CRAN release: 2022-02-25

  • Fixes bug when requesting site_elevation corrected data. Thanks to @daniel_althoff for reporting this bug Issue 69.

nasapower 4.0.4

CRAN release: 2022-02-01

Bug fixes

  • Fixes message when importing data using vroom >= 1.5.0, Thefileargument ofvroom()must useI()for literal data as of vroom 1.5.0.. Thanks to @palderman for the fix in Pull Request 67.

Minor changes

  • Sets minimum version of tibble necessary for use with nasapower.

nasapower 4.0.3

CRAN release: 2021-12-18

  • Fixes tests that should use vcr or be skipped on CRAN.

nasapower 4.0.2

CRAN release: 2021-12-19

  • Update checks for number of parameters requested by user, maximum of 15 for hourly and 20 for all other temporal APIs.

  • Return API messages to user to assist with troubleshooting when an error occurs server-side, see Issue 55.

  • The list of POWER parameters that can be queried from the API, parameters, is now in alphabetical order.

  • Add paragraph to vignette describing how to work with possible rate limiting by API endpoints using ratelimitr. This is in place of internally rate-limiting due to the way ratelimitr handles function creation and the fact that the rate limits are extremely generous and may change as the project matures.

nasapower 4.0.1 (unreleased on CRAN)

Bug fixes

Minor changes

  • Enforces API limits client-side where the API limits unique queries to 30 per 60 seconds as found and reported by @camwur in Issue 57. This can be adjusted in future releases of nasapower if the POWER API changes as has been indicated is possible.

  • (Re)enables vcr for better unit testing.

  • More comprehensive unit tests.

nasapower 4.0.0

CRAN release: 2021-08-23

Major changes

  • Adds support for new NASA POWER API v2.0, which includes new hourly data and other major changes to the API and available data. See for fully detailed changes to the data.

  • Drops support for the deprecated NASA POWER API V1.0. Previous versions of nasapower are no longer functional.

  • Adds new function, query_parameters() to fetch information from the API on individual and all available community/temporal API combination parameters.

  • Removes SSE community, replaced with RE.

  • Removes global option for geographic coverage as passed along through the latlon argument of get_power().

  • Directly parse data from API response rather than downloading data to disk and importing.

  • The get_power() arguments are changed:

    • two new arguments are added,
      • wind_elevation, and
      • wind_surface,
    • the temporal_average argument has been superseded by temporal_api to align with the terminology used in the POWER API. The temporal_average argument will still work, however, a message will be given if a user still uses temporal_average to alert the user of the change and ask them to update their scripts.

Minor changes

  • Improved documentation.

  • Removes internal references to ICASA format files that are no longer supported in this client.

nasapower 3.0.1

CRAN release: 2020-10-24

Bug fixes

  • Fix bug where Solar Radiation, “ALLSKY_SFC_SW_DWN”, and perhaps others that were missed, return a numeric -99.00 value rather than the proper NA for missing data. Thanks to Fernando Miguez,, for the assistance in isolating the issue.

nasapower 3.0.0

CRAN release: 2020-10-10

Major Changes to Functionality

  • Due to the removal of the CRAN package APSIM from CRAN, the removal of the create_met() function has been implemented sooner than expected to keep nasapower on CRAN.

  • Deprecates create_met()

Bug fixes

  • Properly deprecates create_icasa()

nasapower 2.0.0

CRAN release: 2020-09-23

Bug Fixes

  • Correct any missing or redirecting URLs

  • Replace deprecated subclass with class in new_tibble()

Major Changes to Functionality

  • Following a UNIX-like philosophy, this release removes functionality to write APSIM .met and DSSAT ICASA files to disk. nasapower now will only fetch the appropriate data and return a tibble() object in-session, please use apsimx or the POWER web API data access viewer,, for fetching and/or writing .met or .icasa files, respectively. Note that create_icasa() ideally should have been deprecated, but the server was not responding properly when queried for some time before the current release of nasapower so the function has been removed.

  • Add ability to get_power() to accept a user-provided site_elevation parameter that is passed to the API. When this is used it will return a corrected atmospheric pressure value adjusted to the elevation provided.

Minor and Internal Changes

  • Use newest values from POWER team to validate user inputs for API requests, see for more.

  • Replace raster with terra for examples of converting to spatial data in vignettes

  • Use vcr for enhanced testing

  • Refactor the internal handling of temporary files to allow for more efficient use of the future package

nasapower 1.1.3

CRAN release: 2019-11-18

Bug Fixes

  • Corrects bug when querying the SB or SSE communities resulting in an error

  • Corrects example in vignette when creating a .met file

Minor Changes

  • Update documentation to use ROxygen 7.0.0

  • Add new vignette, “Using nasapower with large geographic areas”

nasapower 1.1.2

CRAN release: 2019-09-07

Minor changes

  • Correct URL in BibTeX version of citation

  • Suppress output in console from APSIM::createMetFile()

  • Help file titles are now in sentence case

nasapower 1.1.1

CRAN release: 2019-04-18

Bug fixes

  • Fix issues reported at with failing tests. These tests should be skipped on CRAN but were not.

  • Fixes bug where missing values in POWER data were not properly replaced with NA in tibble and metFile outputs

  • Fixes bug in documentation for create_icasa() where the parameter for file_out was misidentified as just file

Minor changes

  • Users are now notified if creating a .met file that has any missing values through a console message and .csv file being written to disk to accompany the resulting .met file describing which values are missing

nasapower 1.1.0

CRAN release: 2019-04-10

Bug fixes

  • Fixes bug where .met files were not created properly including where “radn” and “rain” col headers were reversed

  • Fix Warning: Must pass a scalar integer as 'nrow' argument to 'new_tibble()'.

  • Fixes bug where “CLIMATE” could not be requested for a single point

Major changes

  • Change how GLOBAL values are requested. This is now specified in lonlat in conjunction with temporal_average = CLIMATOLOGY.

Minor changes

  • Adds example of fetching climate for a single point

  • Refactor code to split internal functions by functionality and add more complete test coverage

nasapower 1.0.7

CRAN release: 2019-02-17

Minor changes

  • Removes internal check for data - community agreement, as all data is available for all communities, only the units change

  • Update links to latest documentation provided by the POWER team

nasapower 1.0.6

Minor changes

  • Adds support for WS2M_MIN, WS2M_MAX and WS2M_RANGE in AG community

Bug fixes

  • Fixes bug where previous release did not support WS2M from AG community due to a local typo

nasapower 1.0.5

CRAN release: 2019-02-02

Minor changes

  • “Fixes” Issue 32 where WS2M is not available through nasapower until the POWER team can properly address how pre-query validation should be performed

nasapower 1.0.4

CRAN release: 2019-01-08

Minor changes

  • Corrects an instance where vignette example executed on CRAN but should not

  • Adds link to POWER website in error message when query fails

  • Documentation .Rd files are now more readable with better formatting

nasapower 1.0.3

Minor changes

Documentation changes

  • Flesh out examples using naspower data with raster to create spatial objects for systems with low-RAM where the functionality may not work as expected

  • Standardise formatting of vignette subheadings

  • Spell check vignette

Bug fixes

  • Fixes tests to not run on CRAN so that errors aren’t reported when API is unavailable

nasapower 1.0.2

CRAN release: 2018-10-18

Minor changes

  • Updates documentation examples

  • Provides nicer method of printing data in R console

  • Updates tests for better coverage and removes non-functional tests

  • Removes dplyr as an Import

Bug fixes

  • Corrects issue where if() was called with a vector of length 2 or more

  • Corrects logical operators && and || where they should be & or |

  • Removes extra code in create_icasa() and create_met() that performed a duplicated check of latlon values

  • Removes unnecessary checks for latlon in get_power()

nasapower 1.0.1

CRAN release: 2018-10-14

Minor changes

  • Provides corrections to documentation formatting as per CRAN volunteers’ requests

  • Provides edits and clarifications in DESCRIPTION’s Description and Title about the package’s uses and capabilities

nasapower 1.0.0 (unreleased)

Major changes

  • nasapower is now a part of rOpenSci after peer-review of the code!

  • Provides access to all three communities, AG, SSE and and SB, not just AG

  • Uses new ‘POWER’ ‘API’ to download new 1/2 x 1/2 degree data

  • Adds function get_power() to get weather data and optionally metadata as well

  • Adds function create_met() to create ‘APSIM’ met objects from ‘POWER’ data

  • Adds function create_icasa() to create a text file of weather data for use in ‘DSSAT’ crop modelling

  • Internally, replaces httr package with crul

Deprecated functions

  • The get_cell and get_region functions are deprecated in favour of get_power(). The new POWER interface allows for the specification of single points or regional areas. Global coverage may be queried for Climatology. See the help for ?get_power() for more details.

nasapower 0.1.4

Bug Fixes

  • Fixes bug related to date columns where MONTH, DAY and YYYY-MM-DD were incorrectly reported in final data frame. This did not affect the weather data, YEAR or DOY columns.

nasapower 0.1.3

Bug fixes

  • Fix bug where lon/lat values were improperly assigned internally due to row names not being ordered correctly in get_region()

  • Fix bug reports link in DESCRIPTION file

  • Correct vignette where it had said, “both of which will which will download”

  • Correct documentation for get_region(), which incorrectly stated that it downloaded data for a 1 x 1 degree cell

Minor improvements

  • Optimise arguments used in utils::read.table() to ingest weather data in the get_cell() and get_region() functions more quickly

  • NEWS now formatted more nicely for easier reading

  • Add statement about possible performance and memory usage when using get_region() in the vignette

  • Add an example of converting the data frame to a spatial object using raster to create a raster::brick()

  • Specify in documentation that a range of days to years can be specified for download

Minor changes

  • get_region() and get_cell() now default to download all weather vars

  • Add a check to see if POWER website is responding before making request for data. If not, stop and return error message to user.

nasapower 0.1.2

Bug fixes

Minor improvements

  • Enhanced documentation

  • Superfluous function, .onLoad(), removed from zzz.R

  • Tidied up startup message

  • Clean up vignette

  • Build vignette faster

  • Remove DATE from DESCRIPTION

nasapower 0.1.1

Minor improvements

  • Fix issues in documentation, typos, incorrect links, etc.

nasapower 0.1.0

New features

Minor improvements

  • Better documentation

nasapower 0.0.2

New features

  • Added citation file

nasapower 0.0.1

  • Added a file to track changes to the package.

  • First release, no changes to report yet