cottonwood_creek_floodplain: Cottonwood Creek Flow to Floodplain Habitat Area Relationship

Description Usage Format Fall Run Modeling Spring Run Modeling Steelhead Modeling Source Examples

Description

A dataset containing the floodplain habitat area in acres as a function of flow in cubic feet per second

Usage

1

Format

dataframe with 32 rows and 5 variables:

flow_cfs

integer flow value in cubic feet per second

FR_floodplain_acres

fall run floodplain acreage

SR_floodplain_acres

spring run floodplain acreage

ST_floodplain_acres

steelhead floodplain acreage

watershed

name of watershed

Fall Run Modeling

A 22.36 mile portion of the entire mapped rearing extent of 22.36 miles was modeled using USFWS / FEMA 1D HEC-RAS hydraulic model. Of the entire mapped rearing extent, 22.36 miles were classified as low gradient and -0.00 miles were classified as high gradient based on a geomorphic analysis. Floodplain area per unit length was determined for the modeled extent and applied to determine areas for the non-modeled extent. A scaling factor of 0.1 was applied to the area per unit length for the high gradient extent. No scaling factor was applied to the low gradient extent.

Spring Run Modeling

A 22.36 mile portion of the entire mapped rearing extent of 119.48 miles was modeled using USFWS / FEMA 1D HEC-RAS hydraulic model. Of the entire mapped rearing extent, 22.36 miles were classified as low gradient and 97.12 miles were classified as high gradient based on a geomorphic analysis. Floodplain area per unit length was determined for the modeled extent and applied to determine areas for the non-modeled extent. A scaling factor of 0.1 was applied to the area per unit length for the high gradient extent. No scaling factor was applied to the low gradient extent.

Steelhead Modeling

A 22.36 mile portion of the entire mapped rearing extent of 142.26 miles was modeled using USFWS / FEMA 1D HEC-RAS hydraulic model. Of the entire mapped rearing extent, 22.36 miles were classified as low gradient and 119.90 miles were classified as high gradient based on a geomorphic analysis. Floodplain area per unit length was determined for the modeled extent and applied to determine areas for the non-modeled extent. A scaling factor of 0.1 was applied to the area per unit length for the high gradient extent. No scaling factor was applied to the low gradient extent.

Source

USFWS / FEMA 1D HEC-RAS hydraulic model

Examples

1

FlowWest/cvpiaHabitat documentation built on Nov. 2, 2018, 1:54 p.m.