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mapme.biodiversity 0.7.0

CRAN release: 2024-05-31

Bug fixes

Breaking changes

  • introduces a standardized output format for indicators, see #240 for more information
  • get_chirps() now allows to specify the years for which to download CHIRPS resources
  • calc_precipitation_chirps() now only returns precipitation sums
  • deprecation of indicator active_fire_properties since resources can now be retrieved using prep_resources() (see below)


  • exports prep_resources() to prepare resources for single assets
  • exports portfolio_long() and portfolio_wide() to automatically un-nest indicator columns and change the data layout to either long or wide
  • changes the behavior of write_portfolio() to serialize portfolios to GDAL supported spatial formats in either long or wide format and deprecates read_portfolio()
  • introduces option chunk_size to mapme_options() to control the size for which polygons are split and processed in chunks
  • allows assets of type 'MULTIPOLYGON' and automatically combines the results based on an aggregation function
  • indicator examples now use portfolio_long() instead of tidyr::unnest()


  • indicator functions must now return tibbles with columns named datetime, variable, unit and value
  • inner-level indicator functions must now specify a statistic for aggregation of chunks
  • chirps and nasa_grace resources updated
  • check for internet connectivity can now be disabled via environment variable mapme_check_connection (#262)
  • gfw_treecover and gfw_lossyear resources updated to v1.11 (#277, @fBedecarrats)
  • GFW indicators now automatically detect the maximum years based on the gfw_lossyear layer (#273)
  • drops curl, stringr, and tidyselect as dependencies
  • moves progressr and rvest from Imports to Suggests
  • drops SPEI from Suggests

mapme.biodiversity 0.6.0

CRAN release: 2024-04-30

Breaking changes

  • introduces a new UI based on closures for resources and indicators, see #240 for more information


New features

  • added Global Surface Water resources and respective indicators (#235, @karpfen)


mapme.biodiversity 0.5.0

CRAN release: 2024-01-08


  • Quickstart vignette uses the WorldPop resource instead of CHIRPS, not relying on a working internet connection (#230).

New features

  • GFW resources and indicators include latest GFC-2022-v1.10 version (#203).
  • Raster resources with a CRS different from WGS84 are now supported (#213).

Breaking changes

  • The argument add_resources to init_portfolio() is deprecated. This means that get_resources() has to be run in every new R session to make resource available for further processing (#219).

  • Rasters are now cropped to the spatial extent of an asset with setting snap="out", thus delivering a slightly bigger extent (#212).

  • Speed improvements for GFW indicators (up to x10 for larger rasters) now require R package exactextractr to be installed. Also, it is advised to have the R package landscapemetrics installed to gain the full computation speed improvement.

Bug Fixes

  • calc_indicators() checks for 0-length tibbles (#196, #199, #215).
  • Fix bug with reading rasters with temporal dimensions (#209).
  • All raster cells touching a polygon are now returned (#208).


  • .read_raster_source() now uses a simplified logic to cover all cases (e.g. single tiles, tiled rasters with and without temporal dimension, single temporal rasters) (#211).
  • Rasters are cropped using snap="out" by default (#212).
  • .read_raster_source() now projects assets in case their CRS differs from the portfolio (#213).
  • tile indices for raster resources are now appended to the portfolio attributes as sf objects instead of being written to disk (#219).
  • .read_raster_source() now applies a precision round-trip of 5 decimal point to match rasters with slight changes in their spatial extent (#217).
  • register_resource() and register_indicator() now issue warnings for resources/indicators with names already registered and overwrites them (#220).

mapme.biodiversity 0.4.0

CRAN release: 2023-08-28

New features

  • added new resource called ucdp_ged providing a database of violent conflict from 1989 to today

  • added a new indicator called fatalities aggregating number of deaths by type of conflict on a monthly time scale based on the ucdp_ged resource.

  • Added a new resource called fritz_et_al providing a raster layer of deforestation

  • added a new resource called fritz_et_al providing a raster layer of deforestation drivers in tropical forests based on Fritz et al. (2022)

  • added a new indicator called deforestation_drivers using the fritz_et_al resource to obtain information on the absolute and relative area driving forest losses in assets for the period 2008-2019

  • added two new exported functions register_resource() and register_indicator() which allow users to register custom functions for resources/indicators

  • added a new vignette for the web-version of the package only informing about how to obtain wide-output from indicators

  • added a new vignette for the web-version for a custom analysis of the NASA FIRMS resource in the example section

  • added the data for years 2017-2020 to the Global Mangrove Watch resource

Breaking changes

  • Changed the parallel backend to the future package. Parallel processing is now implemented by furrr::future_map() on the asset level within the calc_indicators() function. User code is now required to set up a plan() to enable parallel processing. The function call needs to be wrapped on the user side with progressr::with_progress() to show a progress bar.

  • mapme.biodiversity no longer sets terra’s temporal directory for you. Instead you have to call terra::terraOptions() manually

Bug Fixes

  • esalandcover indicator now returns the value per each land cover class exactly once (#177)


  • disabled running examples on CRAN

  • disabled tests for get_* functions on CRAN

  • terra engines now use get() to resolve the requested zonal statistic function

  • applying tidyverse coding style to existing code (#156, @karpfen)

  • extensive re-factoring of vector-raster zonal statistic engines (#150)

  • extensive re-writing of testing infrastructure for indicator functions omitting the usage of snapshot tests as far as possible (#142)

  • rundir and todisk arguments removed from indicator functions since they were of no practical use

  • instead of a resource and indicator backlog, resources and indicators are now registered to .pkgenv and queried there during runtime. This also allows users to register custom resources/indicator functions

  • removed deprecation warnings for old resource/indicator name

mapme.biodiversity 0.3.0

CRAN release: 2023-01-21

Breaking changes

  • on MacOS s2-based calculations are now enabled so users can expect the package to return numerically equivalent results on any operating system (#131)

  • the online source for the nasa_srtm resource shows an expired SSL certificate since November 2022. The get_resources() function now includes an error and instructions how to disable SSL certification at a users own risk. The websites maintainers have been contacted and asked to renew the certification. (#131)

New features

  • GFW resources are now updated to use the latest version allowing analysis for the additional year of 2021 (#123, @fBedecarrats)

  • GFW indicators now accept numeric min_size argument allowing to specify fractional covers (#110)

  • fire indicators now allow the simultaneous calculation of indicators based on MODIS and VIIRS. Before users had to chose between one of the instruments for each analysis (#126)

Bug fixes

  • case when one or multiple assets return NA instead of a tibble is now properly tested and handled (#101)

  • Rasters are no longer temporary written to disk to omit a bug caused by applying mask/classify to an already existing raster file (#108, @Jo-Schie)

  • Bug with soilproperties set to NA caused by the function to return a data.frame instead of a tibble was fixed (#116)

  • both, treecoverloss_emissions and treecover_area_and_emissions now return 0 instead of NaN for observation years where now forest loss occurred (#120)


  • .make_global_grid() now specifies the CRS when constructing the bounding box and returns the grid in the specified CRS instead of Lat/Lon (#113)

  • .calc_active_fire_properties now uses st_coordinates to retrieve locations of fires (#119, @DavisVaughan)

  • tests for MacOS have been re-enabled (#131)

  • tests for downloading nasa_srtm resource are skipped because the SSL certificate of the online source has expired (#131)

mapme.biodiversity 0.2.1

CRAN release: 2022-09-09

Bug fixes

  • fixes a serious bug that occurred for tiled resources when multiple assets are within the same tile resulting in returning the same tile multiple times


  • tests to catch above mentioned bug have been introduced for tiled resources

mapme.biodiversity 0.2.0

CRAN release: 2022-08-23

Breaking changes

  • extensive renaming of resources and indicators. These are handled gracefully until the next release (i.e. a warning is issued and names are replaced):

  • resources:

  • treecover2000 -> gfw_treecover

  • lossyear -> gfw_lossyear

  • greenhouse -> gfw_emissions

  • traveltime -> nelson_et_al

  • nasagrace -> nasa_grace

  • mintemperature -> worldclim_min_temperature

  • maxtemperature -> worldclim_max_temperature

  • precipitation -> worldclim_precipitation

  • ecoregions -> teow

  • mangrove -> gmw

  • srtmdem -> nasa_srtm

  • indicators:

  • treecover -> treecover_area

  • emissions -> treecoverloss_emissions

  • treeloss -> treecover_area_and_emissions

  • chirpsprec -> precipitation_chirps

  • accessibility -> traveltime

  • popcount -> population_count

  • wctmin -> temperature_min_wc

  • wctmax -> temperature_max_wc

  • wcprec -> precipitation_wc

  • gmw -> mangroves_area

  • teow -> ecoregion

New features

  • new resource(s):
    • nasa_firms
  • new indicator(s):
    • active_fire_properties
    • active_fire_counts


  • adapted download routine to GMW v3 (#80)
  • removed data.table from imports

Bug fixes

  • fixing issue #84 concerning intersection of tiled datasets (#86, @Jo-Schie)

mapme.biodiversity 0.1.2

CRAN release: 2022-06-24


  • unit tests have been silenced in order to be more informative for reverse dependency checks
  • checks for tile availability reactivated for SRTM
  • fixed notes due to uninitialized variables in TEOW and biome indicators

mapme.biodiversity 0.1.1

CRAN release: 2022-05-02


  • init_portfolio() now sets the testing attribute to FALSE by default.
  • get_<resource>() functions now return filenames early if testing is set to TRUE.
  • calc_<indicator>() examples now copy files to the R temporal directory and are wrapped in try() to avoid errors/warnings on CRAN if an internet resource is not available.
  • examples for calc_tri() and calc_elevation() are now disabled on CRAN because of the responsiveness of CIGAR servers.

mapme.biodiversity 0.1.0

CRAN release: 2022-04-27

Breaking changes

  • renamed ‘.assetid’ to ‘assetid’ (#22)

New features

  • None


  • ensures that tests and examples adhere to CRAN policies of only writing to the temporal directory (#22).

mapme.biodiversity 0.0.1

CRAN release: 2022-04-19

Initial release

  • Added a file to track changes to the package.
  • initial supported resources are:
    • ecoregions
    • esalandcover
    • greenhouse
    • lossyear
    • mangrove
    • nasagrace
    • soilgrids
    • srtmdem
    • traveltime
    • treecover
    • worldclim
    • worldpop
  • initial supported indicators are:
    • acessibility
    • biome
    • chirpsprec
    • drought_indicator
    • elevation
    • emissions
    • gmw
    • landcover
    • popcount
    • soilproperties
    • teow
    • treecover
    • treeloss
    • tri
    • wcprec
    • wctmax
    • wctmin
  • init_portfolio() is used to initialize a portfolio object. The input must be an sf object where all geometries are of type POLYGON
  • users can request the download of one or more resources via get_resources()
  • users can request the processing of an indicator via calc_indicators()
  • indicators are added to the portfolio object as nested list columns
  • a processed portfolio object can be exported as a GeoPackage via write_portfolio()
  • a portfolio saved to disk as a GeoPackage can be read back into R via read_portfolio(). If users wish to download additional resources or calculate indicators, init_portfolio() has to be called again.
  • Parallelization using multiple cores on the host machine is disabled on Windows
  • on MacOS, the s2 engine for spherical geometric vector operations is disabled and lwgeom is used instead.


  • Introduced absolute URLS in userguide.Rmd pointing to the online documentation (#59)
  • tags added to all exported functions explaining what is the output/side effect (#59)
  • using requireNamespace() instead of installed.packages() to check if packages listed in SUGGEST are loadable (#58)