FEH1000 {nsRFA} | R Documentation

## Data-sample

### Description

Flood Estimation Handbook flood peak data CD-ROM.

### Usage

     data(FEH1000)

### Format

Data.frames:

`am` is the data.frame of the annual maximum flows with 3 columns: `number`, the code of the station; `date`, date of the annual maximum; `year`, year of the annual maximum (we consider hydrologic year: 1 october - 30 september); `am`, the value of the annual maximum flow [m3/s].

`cd` is the data.frame of parameters of 1000 catchements with 24 columns: `number`, the code of the station; `nominal_area`, catchment drainage area [km2]; `nominal_ngr_x`, basin outflow coordinates [m]; `nominal_ngr_y`, basin outflow coordinates [m]; `ihdtm_ngr_x`, basin outflow coordinates by Institute of Hydrology digital terrain model [m]; `ihdtm_ngr_y`, basin outflow coordinates by Institute of Hydrology digital terrain model [m]; `dtm_area`, catchment drainage area [km2] derived by CEH using their DTM (IHDTM); `saar4170`, standard average annual rainfall 1941-1970 [mm]; `bfihost`, baseflow index derived from HOST soils data; `sprhost`, standard percentage runoff derived from HOST soils data; `farl`, index of flood attenuation due to reservoirs and lakes; `saar`, standard average annual rainfall 1961-1990 [mm]; `rmed_1d`, median annual maximum 1-day rainfall [mm]; `rmed_2d`, median annual maximum 2-days rainfall [mm]; `rmed_1h`, median annual maximum 1-hour rainfall [mm]; `smdbar`, mean SMD (soil moisture deficit) for the period 1961-1990 calculated from MORECS month-end values [mm]; `propwet`, proportion of time when soil moisture deficit <=6 mm during 1961-90, defined using MORECS; `ldp`, longest drainage path [km], defined by recording the greatest distance from a catchment node to the defined outlet; `dplbar`, mean drainage path length [km]; `altbar`, mean catchment altitude [m]; `dpsbar`, mean catchement slope [m/km]; `aspbar`, index representing the dominant aspect of catchment slopes (its values increase clockwise from zero to 360, starting from the north). Mean direction of all inter-nodal slopes with north being zero; `aspvar`, index describing the invariability in aspect of catchment slopes. Values close to one when all slopes face a similar direction; `urbext1990`, extent of urban and suburban land cover in 1990 [fraction].

### Note

For information on the package and the Author, and for all the references, see `nsRFA`.

### Source

http://www.environment-agency.gov.uk/hiflowsuk/

### Examples

    data(FEH1000)
    names(cd)
    am[1:20,]

[Package nsRFA version 0.6-9 Index]