README.md

In mikejohnson51/hydroresolve: Resolving HydroFabric Graph and Spatial Topology

output: github_document

hydroresolve

Hydroresolve is a workflow package built around refactoring, aggregating, and paramterizing/attributing hydrofabrics for ngen.

Mapping File

A primary input to the hydroresolve workflow is a mapping file that specifies the refactoring and aggregation parameters to apply to each unit of the NHD This file is stored in the ./data/ directory and is called ngen-hydrofabric-mapping.csv

| Process | Variable | Description | |----------|--------------------------------|---------------| | ID | RPU | Raster Processing Unit from the NHD | | refactor | rf_min_da_km | This parameter represents the contributing area for a catchment.Anything under that size is treated as a non-dendritic area. e.g. there is no network logic applied. | | refactor | rf_split_flines_meters | The maximum length flowpath desired in the output. | | refactor | rf_collapse_flines_meters | The minimum length of inter-confluence flowpath desired in the output. | | refactor | rf_collapse_flines_main_meters | The minimum length of between-confluence flowpaths. | | aggregate| agg_keep | Topologically-aware geometry simplification. keep defines the proportion of points to retain (0-1; default 0.05) | | aggregate| agg_ideal_area_k2 | The ideal catchment size in network | | aggregate| agg_min_area_km2 | The minimum catchment size in network | | aggregate| agg_min_length_km | The minimum flowpath length allowed in network |

meta = read.csv('workspace/inst/ngen-hydrofabric-mapping.csv')
paint(meta)
#> data.frame [73, 9] 
#> rpu_code                       chr 01a 02a 02b 03a 03b 03c
#> rf_min_da_km                   int 20 20 20 20 20 20
#> rf_split_flines_meters         int 10000 10000 10000 10000 ~
#> rf_collapse_flines_meters      int 1000 1000 1000 1000 1000~
#> rf_collapse_flines_main_meters int 1000 1000 1000 1000 1000~
#> agg_keep                       dbl 0.9 0.9 0.9 0.9 0.9 0.9
#> agg_ideal_size_km              int 10 10 10 10 10 10
#> agg_min_size_km                int 3 3 3 3 3 3
#> agg_min_length_km              dbl 0.6 0.6 0.6 0.6 0.6 0.6

t(meta[1,])
#>                                1      
#> rpu_code                       "01a"  
#> rf_min_da_km                   "20"   
#> rf_split_flines_meters         "10000"
#> rf_collapse_flines_meters      "1000" 
#> rf_collapse_flines_main_meters "1000" 
#> agg_keep                       "0.9"  
#> agg_ideal_size_km              "10"   
#> agg_min_size_km                "3"    
#> agg_min_length_km              "0.6"

Data Needs

| Name | Size | Type/read | Description | |----------|--------------------------------|---------------| | ID | RPU | Raster Processing Unit from the NHD | | ID | RPU | Raster Processing Unit from the NHD | | ID | RPU | Raster Processing Unit from the NHD |

| ID | RPU | Raster Processing Unit from the NHD | | ID | RPU | Raster Processing Unit from the NHD | | ID | RPU | Raster Processing Unit from the NHD | | ID | RPU | Raster Processing Unit from the NHD |

| ID | RPU | Raster Processing Unit from the NHD | | ID | RPU | Raster Processing Unit from the NHD |

| ID | RPU | Raster Processing Unit from the NHD | | ID | RPU | Raster Processing Unit from the NHD | | ID | RPU | Raster Processing Unit from the NHD |

mikejohnson51/hydroresolve documentation built on Dec. 21, 2021, 6:55 p.m.