QGIS algorithm - Evapotranspiration (grid)

Source: R/sagang_evapotranspirationgrid.R

QGIS Algorithm provided by SAGA Next Gen Evapotranspiration (grid) (sagang:evapotranspirationgrid). ---------------- Arguments ---------------- T: Mean Temperature (optional) Argument type: raster Acceptable values: - Path to a raster layer T_DEFAULT: Default Default value: 10 Argument type: number Acceptable values: - A numeric value - field:FIELD_NAME to use a data defined value taken from the FIELD_NAME field - expression:SOME EXPRESSION to use a data defined value calculated using a custom QGIS expression T_MIN: Minimum Temperature (optional) Argument type: raster Acceptable values: - Path to a raster layer T_MIN_DEFAULT: Default Default value: 0 Argument type: number Acceptable values: - A numeric value - field:FIELD_NAME to use a data defined value taken from the FIELD_NAME field - expression:SOME EXPRESSION to use a data defined value calculated using a custom QGIS expression T_MAX: Maximum Temperature (optional) Argument type: raster Acceptable values: - Path to a raster layer T_MAX_DEFAULT: Default Default value: 20 Argument type: number Acceptable values: - A numeric value - field:FIELD_NAME to use a data defined value taken from the FIELD_NAME field - expression:SOME EXPRESSION to use a data defined value calculated using a custom QGIS expression RH: Relative Humidity (optional) Argument type: raster Acceptable values: - Path to a raster layer RH_DEFAULT: Default Default value: 50 Argument type: number Acceptable values: - A numeric value - field:FIELD_NAME to use a data defined value taken from the FIELD_NAME field - expression:SOME EXPRESSION to use a data defined value calculated using a custom QGIS expression SR: Solar Radiation (optional) Argument type: raster Acceptable values: - Path to a raster layer SR_DEFAULT: Default Default value: 2 Argument type: number Acceptable values: - A numeric value - field:FIELD_NAME to use a data defined value taken from the FIELD_NAME field - expression:SOME EXPRESSION to use a data defined value calculated using a custom QGIS expression WS: Wind Speed (optional) Argument type: raster Acceptable values: - Path to a raster layer WS_DEFAULT: Default Default value: 5 Argument type: number Acceptable values: - A numeric value - field:FIELD_NAME to use a data defined value taken from the FIELD_NAME field - expression:SOME EXPRESSION to use a data defined value calculated using a custom QGIS expression P: Air Pressure (optional) Argument type: raster Acceptable values: - Path to a raster layer P_DEFAULT: Default Default value: 101.3 Argument type: number Acceptable values: - A numeric value - field:FIELD_NAME to use a data defined value taken from the FIELD_NAME field - expression:SOME EXPRESSION to use a data defined value calculated using a custom QGIS expression ET: Potential Evapotranspiration Argument type: rasterDestination Acceptable values: - Path for new raster layer METHOD: Method Default value: 0 Argument type: enum Available values: - 0: (0) Turc - 1: (1) Hargreave - 2: (2) Penman (simplified) - 3: (3) Penman-Monteith Acceptable values: - Number of selected option, e.g. '1' - Comma separated list of options, e.g. '1,3' LAT: Latitude (Degree) Default value: 53 Argument type: number Acceptable values: - A numeric value - field:FIELD_NAME to use a data defined value taken from the FIELD_NAME field - expression:SOME EXPRESSION to use a data defined value calculated using a custom QGIS expression TIME: Time Default value: 0 Argument type: enum Available values: - 0: (0) day - 1: (1) month Acceptable values: - Number of selected option, e.g. '1' - Comma separated list of options, e.g. '1,3' MONTH: Month Default value: 2 Argument type: enum Available values: - 0: (0) January - 1: (1) February - 2: (2) March - 3: (3) April - 4: (4) May - 5: (5) June - 6: (6) July - 7: (7) August - 8: (8) September - 9: (9) October - 10: (10) November - 11: (11) December Acceptable values: - Number of selected option, e.g. '1' - Comma separated list of options, e.g. '1,3' DAY: Day of Month Default value: 24 Argument type: number Acceptable values: - A numeric value - field:FIELD_NAME to use a data defined value taken from the FIELD_NAME field - expression:SOME EXPRESSION to use a data defined value calculated using a custom QGIS expression

sagang_evapotranspirationgrid(
  T = qgisprocess:::qgis_default_value(),
  T_DEFAULT = qgisprocess:::qgis_default_value(),
  T_MIN = qgisprocess:::qgis_default_value(),
  T_MIN_DEFAULT = qgisprocess:::qgis_default_value(),
  T_MAX = qgisprocess:::qgis_default_value(),
  T_MAX_DEFAULT = qgisprocess:::qgis_default_value(),
  RH = qgisprocess:::qgis_default_value(),
  RH_DEFAULT = qgisprocess:::qgis_default_value(),
  SR = qgisprocess:::qgis_default_value(),
  SR_DEFAULT = qgisprocess:::qgis_default_value(),
  WS = qgisprocess:::qgis_default_value(),
  WS_DEFAULT = qgisprocess:::qgis_default_value(),
  P = qgisprocess:::qgis_default_value(),
  P_DEFAULT = qgisprocess:::qgis_default_value(),
  ET = qgisprocess:::qgis_default_value(),
  METHOD = qgisprocess:::qgis_default_value(),
  LAT = qgisprocess:::qgis_default_value(),
  TIME = qgisprocess:::qgis_default_value(),
  MONTH = qgisprocess:::qgis_default_value(),
  DAY = qgisprocess:::qgis_default_value(),
  ...,
  .complete_output = .complete_output_option(),
  .quiet = .quiet_option(),
  .messages = .message_option()
)

Arguments

T

raster - Mean Temperature. Path to a raster layer.

T_DEFAULT

number - Default. A numeric value. field:FIELD_NAME to use a data defined value taken from the FIELD_NAME field. expression:SOME EXPRESSION to use a data defined value calculated using a custom QGIS expression.

T_MIN

raster - Minimum Temperature. Path to a raster layer.

T_MIN_DEFAULT

number - Default. A numeric value. field:FIELD_NAME to use a data defined value taken from the FIELD_NAME field. expression:SOME EXPRESSION to use a data defined value calculated using a custom QGIS expression.

T_MAX

raster - Maximum Temperature. Path to a raster layer.

T_MAX_DEFAULT

number - Default. A numeric value. field:FIELD_NAME to use a data defined value taken from the FIELD_NAME field. expression:SOME EXPRESSION to use a data defined value calculated using a custom QGIS expression.

RH

raster - Relative Humidity. Path to a raster layer.

RH_DEFAULT

number - Default. A numeric value. field:FIELD_NAME to use a data defined value taken from the FIELD_NAME field. expression:SOME EXPRESSION to use a data defined value calculated using a custom QGIS expression.

SR

raster - Solar Radiation. Path to a raster layer.

SR_DEFAULT

number - Default. A numeric value. field:FIELD_NAME to use a data defined value taken from the FIELD_NAME field. expression:SOME EXPRESSION to use a data defined value calculated using a custom QGIS expression.

WS

raster - Wind Speed. Path to a raster layer.

WS_DEFAULT

number - Default. A numeric value. field:FIELD_NAME to use a data defined value taken from the FIELD_NAME field. expression:SOME EXPRESSION to use a data defined value calculated using a custom QGIS expression.

P

raster - Air Pressure. Path to a raster layer.

P_DEFAULT

number - Default. A numeric value. field:FIELD_NAME to use a data defined value taken from the FIELD_NAME field. expression:SOME EXPRESSION to use a data defined value calculated using a custom QGIS expression.

ET

rasterDestination - Potential Evapotranspiration. Path for new raster layer.

METHOD

enum of ("(0) Turc", "(1) Hargreave", "(2) Penman (simplified)", "(3) Penman-Monteith") - Method. Number of selected option, e.g. '1'. Comma separated list of options, e.g. '1,3'.

LAT

number - Latitude (Degree). A numeric value. field:FIELD_NAME to use a data defined value taken from the FIELD_NAME field. expression:SOME EXPRESSION to use a data defined value calculated using a custom QGIS expression.

TIME

enum of ("(0) day", "(1) month") - Time. Number of selected option, e.g. '1'. Comma separated list of options, e.g. '1,3'.

MONTH

enum of ("(0) January", "(1) February", "(2) March", "(3) April", "(4) May", "(5) June", "(6) July", "(7) August", "(8) September", "(9) October", "(10) November", "(11) December") - Month. Number of selected option, e.g. '1'. Comma separated list of options, e.g. '1,3'.

DAY

number - Day of Month. A numeric value. field:FIELD_NAME to use a data defined value taken from the FIELD_NAME field. expression:SOME EXPRESSION to use a data defined value calculated using a custom QGIS expression.

...

further parameters passed to qgisprocess::qgis_run_algorithm()

.complete_output

logical specifying if complete out of qgisprocess::qgis_run_algorithm() should be used (TRUE) or first output (most likely the main) should read (FALSE). Default value is TRUE.

.quiet

logical specifying if parameter .quiet for qgisprocess::qgis_run_algorithm() Default value is TRUE.

.messages

logical specifying if messages from qgisprocess::qgis_run_algorithm() should be printed (TRUE) or not (FALSE). Default value is FALSE.

Details

Outputs description

  • ET - outputRaster - Potential Evapotranspiration