SAGA.ta_morphometry.5: Hypsometry

Calculates the hypsometric curve for a given DEM.<br/><br/>The hypsometric curve is an empirical cumulative distribution function of elevations in a catchment or of a whole planet. The tool calculates both the relative (scaled from 0 to 100 percent) and absolute (minimum to maximum values) distributions. The former scales elevation and area by the maximum values. Such a non-dimensional curve allows one to asses the similarity of watersheds as differences in hypsometric curves arise from different geomorphic processes shaping a landscape.<br/><br/>In case the hypsometric curve should not be calculated for the whole elevation range of the input dataset, a user-specified elevation range can be specified with the classification constant area.<br/><br/>The output table has two attribute columns with relative height and area values, and two columns with absolute height and area values. In order to plot the non-dimensional hypsometric curve as diagram, use the relative area as x-axis values and the relative height for the y-axis. For a diagram with absolute values, use the absolute area as x-axis values and the absolute height for the y-axis.

Inputs

√Čl√©vation

format
href
Please set a value for ELEVATION.

Number of discrete intervals (bins) used for sampling

integer

Choose how to sort the elevation dataset before sampling

string

Choose the classification constant to use

string

Use a user-specified elevation range instead of min/max of the input dataset

boolean

User specified elevation range

number

User specified elevation range

number

Outputs

Hypsometry

format
transmission

Execution options

successUri
inProgressUri
failedUri

format

mode

Execute End Point

View the execution endpoint of a process.

View the alternative version in HTML.

{"id": "SAGA.ta_morphometry.5", "title": "Hypsometry", "description": "Calculates the hypsometric curve for a given DEM.<br/><br/>The hypsometric curve is an empirical cumulative distribution function of elevations in a catchment or of a whole planet. The tool calculates both the relative (scaled from 0 to 100 percent) and absolute (minimum to maximum values) distributions. The former scales elevation and area by the maximum values. Such a non-dimensional curve allows one to asses the similarity of watersheds as differences in hypsometric curves arise from different geomorphic processes shaping a landscape.<br/><br/>In case the hypsometric curve should not be calculated for the whole elevation range of the input dataset, a user-specified elevation range can be specified with the classification constant area.<br/><br/>The output table has two attribute columns with relative height and area values, and two columns with absolute height and area values. In order to plot the non-dimensional hypsometric curve as diagram, use the relative area as x-axis values and the relative height for the y-axis. For a diagram with absolute values, use the absolute area as x-axis values and the absolute height for the y-axis.", "version": "1.0.0", "jobControlOptions": ["sync-execute", "async-execute", "dismiss"], "outputTransmission": ["value", "reference"], "links": [{"rel": "http://www.opengis.net/def/rel/ogc/1.0/execute", "type": "application/json", "title": "Execute End Point", "href": "http://demo.mapmint.com/ogc-api/processes/SAGA.ta_morphometry.5/execution"}, {"rel": "alternate", "type": "text/html", "title": "Execute End Point", "href": "http://demo.mapmint.com/ogc-api/processes/SAGA.ta_morphometry.5/execution.html"}], "inputs": {"ELEVATION": {"title": "\u00c9l\u00e9vation", "description": "\u00c9l\u00e9vation", "extended-schema": {"oneOf": [{"allOf": [{"$ref": "http://zoo-project.org/dl/link.json"}, {"type": "object", "properties": {"type": {"enum": ["image/tiff", "application/x-ogc-envi", "application/x-ogc-aaigrid", "image/png"]}}}]}, {"type": "object", "required": ["value"], "properties": {"value": {"oneOf": [{"type": "string", "contentEncoding": "base64", "contentMediaType": "image/tiff"}, {"type": "string", "contentEncoding": "base64", "contentMediaType": "application/x-ogc-envi"}, {"type": "string", "contentEncoding": "base64", "contentMediaType": "application/x-ogc-aaigrid"}, {"type": "string", "contentEncoding": "base64", "contentMediaType": "image/png"}]}}}]}, "schema": {"oneOf": [{"type": "string", "contentEncoding": "base64", "contentMediaType": "image/tiff"}, {"type": "string", "contentEncoding": "base64", "contentMediaType": "application/x-ogc-envi"}, {"type": "string", "contentEncoding": "base64", "contentMediaType": "application/x-ogc-aaigrid"}, {"type": "string", "contentEncoding": "base64", "contentMediaType": "image/png"}]}, "id": "ELEVATION"}, "COUNT": {"title": "Number of Classes", "description": "Number of discrete intervals (bins) used for sampling", "schema": {"type": "integer", "default": 100, "nullable": true}, "id": "COUNT"}, "SORTING": {"title": "Sort", "description": "Choose how to sort the elevation dataset before sampling", "schema": {"type": "string", "default": "down", "enum": ["up", "down"], "nullable": true}, "id": "SORTING"}, "METHOD": {"title": "Classification Constant", "description": "Choose the classification constant to use", "schema": {"type": "string", "default": "area", "enum": ["height", "area"], "nullable": true}, "id": "METHOD"}, "BZRANGE": {"title": "Use Z-Range", "description": "Use a user-specified elevation range instead of min/max of the input dataset", "schema": {"type": "boolean", "default": false, "enum": ["true", "false"], "nullable": true}, "id": "BZRANGE"}, "ZRANGE_MIN": {"title": "Z-Range (min value)", "description": "User specified elevation range", "schema": {"type": "number", "nullable": true}, "id": "ZRANGE_MIN"}, "ZRANGE_MAX": {"title": "Z-Range (max value)", "description": "User specified elevation range", "schema": {"type": "number", "nullable": true}, "id": "ZRANGE_MAX"}}, "outputs": {"TABLE": {"title": "Hypsometry", "description": "Hypsometry", "extended-schema": {"oneOf": [{"allOf": [{"$ref": "http://zoo-project.org/dl/link.json"}, {"type": "object", "properties": {"type": {"enum": ["text/csv", "text/csv"]}}}]}, {"type": "object", "required": ["value"], "properties": {"value": {"oneOf": [{"type": "string", "contentEncoding": "utf-8", "contentMediaType": "text/csv"}, {"type": "string", "contentEncoding": "base64", "contentMediaType": "text/csv"}]}}}]}, "schema": {"oneOf": [{"type": "string", "contentEncoding": "utf-8", "contentMediaType": "text/csv"}, {"type": "string", "contentEncoding": "base64", "contentMediaType": "text/csv"}]}, "id": "TABLE"}}}

http://demo.mapmint.com/ogc-apihttp://localhost/ogc-api/processes/SAGA.ta_morphometry.5.html
Last modified: Sat Feb 19 15:43:34 CET 2022