Inputs for baseline CONUS1 ParFlow Simulations

The ParFlow CONUS1 model is the first generation national ParFlow model. You can learn more about the domain and the model on the HydroFrame Website.

For datasets that are 3 dimensional, the ParFlow CONUS1 model consists of 5 layers with a total depth of about 102 m. The layers have variable thicknesses of 100, 1, 0.6, 0.3, and 0.1 m from bottom to top. Note that indexing layers is also done from bottom to top, so the layer associated with Python index 0 is the bottom (deepest) layer and the layer associated with Python index 4 is the top layer closest to the surface.

This dataset contains all of the input fields for the model as well as additional pre and post processing files that can be useful for data analysis. If you are interested in building a ParFlow model off of this national template the SubsetTools Python package can help you do that.

Dataset Name: conus1_domain

Data Source: hydroframe

Citations:

Please refer to the following citations for more information on this dataset and cite them if you use the data

• https://doi.org/10.5194/gmd-8-923-2015;

• https://doi.org/10.1016/j.advwatres.2015.04.008;

• https://doi.org/10.1002/2014WR016774;

• https://doi.org/10.1002/2015GL066916

Extent and Resolution:

• Available Date Range:

• Grid: conus1

  • Spacial Resolution: 1000 meters

  • XY Grid Spacial Extent: 3342 x 1888

  • LatLon Spacial Exent: -121.47939483437318, 31.651836025255015, -76.09875469594509, 50.49802132270979

  • Origin (meters): -1885055.4995, -604957.0654

  • Projection: +proj=lcc +lat_1=33 +lat_2=45 +lon_0=-96.0 +lat_0=39 +a=6378137.0 +b=6356752.31

Variables

This describes the available variables of the dataset. Use the dataset, variables and temporal_resolution in python access functions as described in the Working with Gridded Data, and Working with Point Observations.

Climate Variables

variable	description	temporal_resolution	units	grid	3D
aridity_index	Aridity index precipitation/ (precipitaiton -evaporaiton)	static	unitless	conus1	no
pme	Recharge forcing used for parflow spinups	static	m/h	conus1	yes

Hydrogeology Variables

variable	description	temporal_resolution	units	grid	3D
pf_indicator	Indicator file for subsufrace units in parflow	static	unitless	conus1	yes
van_genuchten_alpha	Alpha parameter for van genucten curve	static	unitless	conus1	yes
porosity	Porosity	static	unitless	conus1	yes
permeability	Permeability	static	m/h	conus1	yes
van_genuchten_n	N parameter for van genuchten curve	static	unitless	conus1	yes

Land Surface Variables

variable	description	temporal_resolution	units	grid	3D
veg_type_IGBP	Vegetation type using igbp classifications	static	unitless	conus1	yes

Location Variables

variable	description	temporal_resolution	units	grid	3D
latitude	Map grid points to latitude	static	degrees_north	conus1	no
longitude	Map grid points to longitude	static	degrees_east	conus1	no

Stream Network Variables

variable	description	temporal_resolution	units	grid	3D
stream_order	Strahler stream order	static	unitless	conus1	no
flow_direction	D4 flow direcitons with the following numbering: 1=down, 2=left, 3=up, 4=right	static	unitless	conus1	no
flow_direction_grass	D4 flow directions with grass numbering (2=up, 4=left, 6=down, 8=right)	static	unitless	conus1	no
stream_segments	Stream segment id numbers (0 values outside of stream)	static	unitless	conus1	no

Subsurface Variables

variable	description	temporal_resolution	units	grid	3D
ss_pressure_head	Presssure head at the end of spinup	static	m	conus1	yes

Topography Variables

variable	description	temporal_resolution	units	grid	3D
slope_x	Slope in the x direciton (grid centered)	static	unitless	conus1	no
elevation	Digital elevation model (dem)	static	m	conus1	no
slope_y	Slope in the y direction (grid centered)	static	unitless	conus1	no
drainage_area	Drainage area	static	km2	conus1	no
topographic_index	Topographic index	static	unitless	conus1	no