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,]