You are not logged in. Click here to log in.

Application Lifecycle Management

Search In Project

Search inClear

Water and Wind Erodibility Potentials#70024/HEAD / v4
Tags:  not added yet

Water and Wind Erodibility Potentials[SERVICE-70024]

Tracker: Services Priority: HighestHighest Status: In Development
Submitted by: JRCarlsonMar 27 2020 16:42 Modified by: casespApr 14 2020 15:44 Type:
Data
Path: d/wepot/2.2 Context: csip-soils Version: 2.2
Endpoints: --
Maintainers:
Website: -- Apps:
--
Test Status:
--
Last Tested: -- Test Count: --
Test Success Rate: -- Failed Tests: --
Traceability
Loading…
Description
This service computes water and wind erodibility potentials for an area of analysis (AoA). The service clips SSURGO soil mapunits with AoA geometry and fetches parameters from the SSURGO component table for all major soil components >= 10% of the AoA area, fetches a climate factor from the C Factor layer, and computes the following equations for each soil component: Wind Erosion Potential = C*I/T ; Water Erosion Potential = K*(LS)/T. Results include water erodibility potentials for the critical dominant soil component, the soil component having the highest erodibility potential, and weighted average for all selected soil components. Results also include wind erodibility potentials for the critical dominant soil component.
Details
Comments & Attachments (1)
Associations
Children
SCM Commits
History (4)
Baselines
All (4)

Filter
Submitted Comment
JRCarlson
Mar 27 2020 16:54
1. Compute water erodibility potential (ep) for each major soil component equal to or greater than 10% of the area of the input geometry2. Return water erodibility potential (ep) for the critical dominant soil component3. Return highest value water erodibility potential (ep) 4. Compute and return weighted average water erodibility potential (ep)

Suggested response JSON below. The wind related response parameters remain as they are.

------------------

Water Erodibility Potential (ep) Result for Critical Dominant Soil Component

Note: Critical dominant soil component is one equal to or greater than 10% of the area of the input geometry having the highest K factor

{

"name": "aoa_crit_dom_water_comp",

"value": "17993699",

"description": “Key value for critical dominant soil component (major component equal to or greater than 10% of area of input geometry, having highest K factor"

},

{

"name": "aoa_crit_dom_water_compname",

"value": "Loring",

"description": “Critical dominant soil component name."

},

{

"name": "aoa_crit_dom_water_comp_area",

"value": "5.78",

"unit": "Acres",

"description": “Critical dominant soil component area."

},

{

"name": "aoa_crit_dom_water_comp_area_pct",

"value": "11.24",

"unit": "Percent",

"description": “Critical dominant soil component area percentage."

},

{

"name": “aoa_crit_dom_water_kfactor",

"value": "0.49",

"description": "An erodibility factor which quantifies the susceptibility of soil particles to detachment by water"

},

{

"name": “aoa_crit_dom_water_lsfactor",

"value": "0.16",

"unit": "feet",

"description": "The calculated distance, using slope_r and lambda, from the point of origin of overland flow to the point where either the slope gradient decreases enough that deposition begins, or the runoff water enters a well-defined channel that may be part of a drainage network or a constructed channel. (Predicting Rainfall Erosion Losses a Guide to Conservation Planning, Agr. Handbook #537, USDA, 1978)."

},

{

"name": "aoa_crit_dom_water_tfactor",

"value": "4.00",

"description": "Soil loss tolerance factor. The maximum amount of erosion at which the quality of a soil as a medium for plant growth can be maintained"

},

{

"name": “aoa_crit_dom_water_ep",

"value": "0.019",

"description": "Calculated water erosion potential for the critical dominant soil component."

},


Water Erodibility Potential (ep) Result for Major Soil Component with Highest Water ep

Note: Soil component must be equal to or greater than 10% of the area of the input geometry. In the following example, the Loring soil has the highest water ep, but could be another different soil component than the critical dominant.

{

"name": "aoa_high_ep_water_comp",

"value": "17993699",

"description": <span>“</span>Key value for soil component equal to or greater than 10% of area of the input geometry, having highest water erodibility potential "

},

{

"name": "aoa_high_ep_water_compname",

"value": "Loring",

"description": “Highest water erodibility soil component name."

},

{

"name": "aoa_high_ep_water_comp_area",

"value": "5.78",

"unit": "Acres",

"description": “Highest water erodibility soil component area."

},

{

"name": "aoa_high_ep_water_comp_area_pct",

"value": "11.24",

"unit": "Percent",

"description": “Highest water erodibility soil component area percentage."

},

{

"name": “aoa_high_ep_water_kfactor",

"value": "0.49",

"description": "An erodibility factor which quantifies the susceptibility of soil particles to detachment by water"

},

{

"name": “aoa_high_ep_water_lsfactor",

"value": "0.16",

"unit": "feet",

"description": "The calculated distance, using slope_r and lambda, from the point of origin of overland flow to the point where either the slope gradient decreases enough that deposition begins, or the runoff water enters a well-defined channel that may be part of a drainage network or a constructed channel. (Predicting Rainfall Erosion Losses a Guide to Conservation Planning, Agr. Handbook #537, USDA, 1978)."

},

{

"name": "aoa_high_ep_water_tfactor",

"value": "4.00",

"description": "Soil loss tolerance factor. The maximum amount of erosion at which the quality of a soil as a medium for plant growth can be maintained"

},

{

"name": “aoa_highest_water_ep",

"value": "0.019",

"description": “Calculated water erosion potential for highest water erodibility soil component"

},


Weighted Average Water Erodibility Potential (ep) Result

Note: Soil component must be equal to or greater than 10% of the area of the input geometry. In the following example, the Loring soil has the highest water ep, but could be another different soil component than the critical dominant.

{

"name": “aoa_weighted_average_water_ep",

"value": "0.015",

"description": “Calculated weighted average water erosion potential for major soil components equal to or greater than 10% of the area of the input geometry"

},