Snow Cover
- Author: O.Conrad (c) 2017
- Menu: Climate and Weather | Tools
Description
The 'Snow Cover' tool uses a simple model to estimate snow cover statistics from climate data. When temperature falls below zero any precipitation is accumulated as snow. Temperatures above zero will diminish accumulated snow successively until it is gone completely. Simulation is done on a daily basis. If you supply the tool with monthly averages, temperatures will be interpolated using a spline and precipitation will be split into separate events. The latter is done with respect to the monthly mean temperature, i.e. the higher the temperature the more concentrated are precipitation events and vice versa.
References
- Paulsen, J. / K__rner, C. (2014): A climate-based model to predict potential snow_cover position around the globe. Alpine Botany, 124:1, 1___12. doi:10.1007/s00035-014-0124-0. online.
Parameters
Name | Type | Identifier | Description | Constraints | |
---|---|---|---|---|---|
Input | Mean Temperature | grid list, input | T | - | - |
Precipitation | grid list, input | P | - | - | |
Output | Snow Cover Days | grid, output | DAYS | - | - |
Average | grid, output, optional | MEAN | - | - | |
Maximum | grid, output, optional | MAXIMUM | - | - | |
Quantile | grid, output, optional | QUANTILE | - | - | |
Options | Grid System | grid system | PARAMETERS_GRID_SYSTEM | - | - |
Value | floating point number | QUANT_VAL | Quantile specified as percentage. | Minimum: 0.000000 Maximum: 100.000000 Default: 50.000000 | |
Time | choice | TIME | - | Available Choices: [0] Year [1] January - March [2] April - June [3] July - September [4] October - December [5] Single Month Default: 0 | |
Month | choice | MONTH | - | Available Choices: [0] January [1] February [2] March [3] April [4] May [5] June [6] July [7] August [8] September [9] October [10] November [11] December Default: 0 |
Command Line
Usage: saga_cmd climate_tools 17 [-T] [-P ] [-DAYS ] [-MEAN ] [-MAXIMUM ] [-QUANTILE ] [-QUANT_VAL ] [-TIME ] [-MONTH ] -T: Mean Temperature grid list, input -P: Precipitation grid list, input -DAYS: Snow Cover Days grid, output -MEAN: Average grid, output, optional -MAXIMUM: Maximum grid, output, optional -QUANTILE: Quantile grid, output, optional -QUANT_VAL: Value floating point number Minimum: 0.000000 Maximum: 100.000000 Default: 50.000000 -TIME: Time choice Available Choices: [0] Year [1] January - March [2] April - June [3] July - September [4] October - December [5] Single Month Default: 0 -MONTH: Month choice Available Choices: [0] January [1] February [2] March [3] April [4] May [5] June [6] July [7] August [8] September [9] October [10] November [11] December Default: 0