Schemas

calib_param_file

Calibrated parameters for various modules for all gages in an NWM domain (e.g., CONUS).

Sample file path: inputs/region/pseudo_calib_params/sampled_params_conus.csv

Example rows:

gage_id	formulation	MFSNO	CWP	VCMX25	MP	RSURF_SNOW	RSURF_EXP	SCAMAX	b	satdk	satpsi	slope	maxsmc	wltsmc	max_gw_storage	Cgw	expon	Kn	Klf	refkdt	mfmax	uadj	si	mfmin	scf	nmf	tipm	pxtemp	plwhc	daygm	smcmin	smcmax	van_genuchten_alpha	van_genuchten_n	hydraulic_conductivity	ponded_depth_max	field_capacity	df	cc	hcan	lai	subalb	ems	cg	zo	rho	rhog	Ks	de	avo	apr	a_Xinanjiang_inflection_point_parameter	b_Xinanjiang_shape_parameter	x_Xinanjiang_shape_parameter	uztwm	uzfwm	lztwm	lzfsm	lzfpm	adimp	uzk	lzpk	lzsk	zperc	rexp	pctim	pfree	riva	side
1010000	noah-owp-modular cfe-s t-route	2.5681848800643285	0.3286171733536613	98.26779571658672	12.345915915145532	34.57680991125569	4.064091503042371	0.9712745199335464	3.7414847994010367	0.0009141315202519	0.2682757844834037	0.7532535832349109	0.4130823012978584	0.2589183149092599	0.1352373803701926	0.0004228761310245	1.1540687515916113	0.3326644885346328	0.8494590266511353	3.7047342427645367	nan	nan	nan	nan	nan	nan	nan	nan	nan	nan	nan	nan	nan	nan	nan	nan	nan	nan	nan	nan	nan	nan	nan	nan	nan	nan	nan	nan	nan	nan	nan	nan	nan	nan	nan	nan	nan	nan	nan	nan	nan	nan	nan	nan	nan	nan	nan	nan	nan
1010000	noah-owp-modular snow-17 lasam t-route	1.7202166366984653	0.2830454483663369	55.7216447075499	7.395125941680879	64.91094869284314	4.532964185028021	0.839432321093368	nan	nan	nan	nan	nan	nan	nan	nan	nan	nan	nan	nan	0.2549536985740628	0.1149808945005032	3395.942668181262	0.0402573508525195	1.3993208237988155	0.1860697866529445	0.4344457454145048	2.8034892811290693	0.1682210213074931	0.0212834071116516	0.1391684172778563	0.7052654753641924	0.1892796609353877	1.8393994158286835	0.8245934418227354	2.6163411478418066	85.65653278592669	nan	nan	nan	nan	nan	nan	nan	nan	nan	nan	nan	nan	nan	nan	nan	nan	nan	nan	nan	nan	nan	nan	nan	nan	nan	nan	nan	nan	nan	nan	nan	nan
1010000	noah-owp-modular ueb cfe-x t-route	1.6984225027876014	0.1138073585146865	44.18211099270653	10.7458769168222	41.55877300879165	2.6584257451986466	0.9894877010479544	6.451208746356487	0.0009931305806678	0.4331962074757012	0.2281443013468404	0.2915759136119435	0.1545028069618073	0.1101811687158985	0.00173408132033	4.603211031471964	0.9632723151253538	0.1889839116526389	0.1175267001634975	nan	nan	nan	nan	nan	nan	nan	nan	nan	nan	nan	nan	nan	nan	nan	nan	nan	1.451971818772199	0.2253714587504531	2.6267503130197287	1.0381689683179314	0.2723324489894099	0.9878101435547773	2.104278810378881	0.0096068438949711	346.4354100199481	1291.644609708449	6.939487504771504	0.3945507373583731	0.8990968927991766	83059.92094090296	-0.4349516338584633	2.974069284705172	4.643406523991181	nan	nan	nan	nan	nan	nan	nan	nan	nan	nan	nan	nan	nan	nan	nan

Schema:

Column	Description	Type
gage_id	Unique identifier for each calibration gage.	int64
formulation	NextGen formualtion calibrated for a given gage (e.g., nom-cfes, nom-sac)	object
MFSNO	NOM parameter: Melt factor for snow depletion curve	float64
CWP	NOM parameter: Canopy water capacity	float64
VCMX25	NOM parameter: Maximum canopy storage	float64
MP	NOM parameter: MP	float64
RSURF_SNOW	NOM parameter: Snow surface roughness	float64
RSURF_EXP	NOM parameter: Snow surface roughness exponent	float64
SCAMAX	NOM parameter: SCAMAX	float64
b	CFE parameter: b	float64
satdk	CFE parameter: satdk	float64
satpsi	CFE parameter: satpsi	float64
slope	CFE parameter: slope	float64
maxsmc	CFE parameter: maxsmc	float64
wltsmc	CFE parameter: wltsmc	float64
max_gw_storage	CFE parameter: max_gw_storage	float64
Cgw	CFE parameter: Cgw	float64
expon	CFE parameter: expon	float64
Kn	CFE parameter: Kn	float64
Klf	CFE parameter: Klf	float64
refkdt	CFE parameter: refkdt	float64
mfmax	snow-17 parameter: mfmax	float64
uadj	snow-17 parameter: uadj	float64
si	snow-17 parameter: si	float64
mfmin	snow-17 parameter: mfmin	float64
scf	snow-17 parameter: scf	float64
nmf	snow-17 parameter: nmf	float64
tipm	snow-17 parameter: tipm	float64
pxtemp	snow-17 parameter: pxtemp	float64
plwhc	snow-17 parameter: plwhc	float64
daygm	snow-17 parameter: daygm	float64
smcmin	lasam parameter: smcmin	float64
smcmax	lasam parameter: smcmax	float64
van_genuchten_alpha	lasam parameter: van_genuchten_alpha	float64
van_genuchten_n	lasam parameter: van_genuchten_n	float64
hydraulic_conductivity	lasam parameter: hydraulic_conductivity	float64
ponded_depth_max	lasam parameter: ponded_depth_max	float64
field_capacity	lasam parameter: field_capacity	float64
df	UEB parameter: df	float64
cc	UEB parameter: cc	float64
hcan	UEB parameter: hcan	float64
lai	UEB parameter: lai	float64
subalb	UEB parameter: subalb	float64
ems	UEB parameter: ems	float64
cg	UEB parameter: cg	float64
zo	UEB parameter: zo	float64
rho	UEB parameter: rho	float64
rhog	UEB parameter: rhog	float64
Ks	UEB parameter: Ks	float64
de	UEB parameter: de	float64
avo	UEB parameter: avo	float64
apr	UEB parameter: apr	float64
a_Xinanjiang_inflection_point_parameter	CFE-X parameter: a_Xinanjiang_inflection_point_parameter	float64
b_Xinanjiang_shape_parameter	CFE-X parameter: b_Xinanjiang_shape_parameter	float64
x_Xinanjiang_shape_parameter	CFE-X parameter: x_Xinanjiang_shape_parameter	float64
uztwm	sac-sma parameter: uztwm	float64
uzfwm	sac-sma parameter: uzfwm	float64
lztwm	sac-sma parameter: lztwm	float64
lzfsm	sac-sma parameter: lzfsm	float64
lzfpm	sac-sma parameter: lzfpm	float64
adimp	sac-sma parameter: adimp	float64
uzk	sac-sma parameter: uzk	float64
lzpk	sac-sma parameter: lzpk	float64
lzsk	sac-sma parameter: lzsk	float64
zperc	sac-sma parameter: zperc	float64
rexp	sac-sma parameter: rexp	float64
pctim	sac-sma parameter: pctim	float64
pfree	sac-sma parameter: pfree	float64
riva	sac-sma parameter: riva	float64
side	sac-sma parameter: side	float64

calval_stats_file

Calibration and validation statistics for all gages in an NWM domain (e.g., CONUS).

Sample file path: inputs/region/calval_stats/stat_calval_all_conus.parquet

Example rows:

formulation	gage_id	evalPeriod	bias	rmse	cor	nse	nselog	nseWt	kge	msof	hyperResMultiObj	nnsesq	eventmultiobj	lbem	lbemprime	corr1	pod	far	csi	nnse	peak_bias	peak_tm_err_hr	event_volume_bias
noah-owp-modular cfe-s t-route	01010000	calib	-4.22313711118399	6.340465322534651	0.688672993019667	0.352110886451316	0.289938317202322	0.3210246018268189	0.683557516268751	1197.87649904829	0.3407426694755759	0.3525668325301929	96.2420588007148	-14.6322865028915	-2.3165845788185697	0.614269192322281	0.6734475374732329	0.467174925878865	0.423426455738808	0.606836947812907	120.710086685077	8.1	59.5400169741716
noah-owp-modular cfe-s t-route	01010000	full	-15.5504575885424	5.76809385974621	0.6929937073565079	0.3606695975617929	-0.0769408622647187	0.141864367648537	0.654327254839115	1357.91116071561	0.3847846675916339	0.360173479418255	94.85988221191192	-5.0865720336511	-0.888828280571734	0.6233670936801109	0.522358859698155	0.3853995396251229	0.393473684210526	0.610005157296345	118.327573987421	7.63414634146341	59.6583445486478
noah-owp-modular cfe-s t-route	01010000	valid	-37.4902702855678	4.54614536935466	0.712848487187317	0.388788333058551	-0.575071079915985	-0.0931413734287169	0.527757083492435	640.108086710608	0.302740552732747	0.471794395615111	81.3309055664079	-100.72445737502	-8.38400037333542	0.623214128732094	0.3573099415204679	0.101470588235294	0.3434513771781899	0.6206509178885811	109.960685728188	8.04	38.3862353237379

Schema:

Column	Description	Type
formulation	NextGen formualtion calibrated for a given gage	object
gage_id	Unique identifier for each gage	object
evalPeriod	Evaluation period for the statistics (e.g., calibration, validation, and full periods)	object
bias	Metric: bias	float64
rmse	Metric: root mean square error	float64
cor	Metric: Pearson correlation	float64
nse	Metric: Nash-Sutcliffe efficiency	float64
nselog	Metric: Nash-Sutcliffe efficiency (logarithmic)	float64
nseWt	Metric: weighted Nash-Sutcliffe efficiency	float64
kge	Metric: Kling-Gupta efficiency	float64
msof	Metric: mean squared error of the forecast	float64
hyperResMultiObj	Metric: hyper-resolution multi-objective	float64
nnsesq	Metric: normalized Nash-Sutcliffe efficiency squared	float64
eventmultiobj	Metric: event-based multi-objective	float64
lbem	Metric: log bias error metric	float64
lbemprime	Metric: modified log bias error metric	float64
corr1	Metric: correlation coefficient 1	float64
pod	Metric: probability of detection	float64
far	Metric: false alarm ratio	float64
csi	Metric: critical success index	float64
nnse	Metric: normalized Nash-Sutcliffe efficiency	float64
peak_bias	Metric: event peak bias	float64
peak_tm_err_hr	Metric: event peak time error in hours	float64
event_volume_bias	Metric: event volume bias	float64

divide_huc12_cwt_file

Catchment to HUC12 mapping file used in formulation regionalization. Each catchment may overlap with multiple HUC12 watersheds. It is desirable for the total overlap percentage for any given catchment to be as close to 100% as possible.

Sample file path: inputs/region/cwt_divide_huc12/cwt_divide_huc12_conus.csv

Example rows:

divide_id	huc_12	overlap_area	areasqkm	original_area	overlap_percentage	nearest_dist_m
cat-1	11000060401	0.1	0.07	0.12	86.07	nan
cat-10	11000030301	0.0	0.0	0.0	31.13	nan
cat-100	10900020107	97.01	57.42	103.64	93.61	nan

Schema:

Column	Description	Type
divide_id	Unique identifier for each catchment.	object
huc_12	12-digit Hydrologic Unit Code (HUC12) representing the watershed in which the catchment is located.	int64
overlap_area	Area of overlap between the catchment and the HUC12 watershed.	float64
areasqkm	Area of the catchment in square kilometers.	float64
original_area	Original area of the catchment before any processing or adjustments.	float64
overlap_percentage	Percentage of the catchment area that overlaps with the HUC12 watershed.	float64
nearest_dist_m	Nearest distance in meters between the catchment and the HUC12 watershed, when there is no overlap.	float64

donor_gage_file

List of all calibration gages accross all NWM domains. Note list of potential donor gages can be a subset of this list, depending on gages included in the cal/val stats file.

Sample file path: inputs/region/gages_nwm4_calib_all.csv

Example rows:

gage_id	nws_id	agency	station_name	domain	domain_id	nwm_v3_calibration	headwater_calibration	latitude	longitude
01021480	WSLM1	USGS	Old Stream near Wesley, Maine	CONUS	3	True	True	44.9369444	-67.7361111
01029200	SBSM1	USGS	Seboeis River near Shin Pond, Maine	CONUS	3	True	True	46.14305556	-68.6336111
01029500	GRNM1	USGS	East Branch Penobscot River at Grindstone, Maine	CONUS	3	True	True	45.73027778	-68.5894444

Schema:

Column	Description	Type
gage_id	Unique identifier for each gage.	object
nws_id	National Weather Service (NWS) gage identifier.	object
agency	Agency responsible for the gage.	object
station_name	Name of the gage station.	object
domain	Hydrologic domain of the gage.	object
domain_id	Identifier for the hydrologic domain.	int64
nwm_v3_calibration	Indicates if the gage was used in NWM version 3 calibration.	bool
headwater_calibration	Indicates if the gage is part of headwater calibration for NWM version 4.	bool
latitude	Latitude of the gage location.	float64
longitude	Longitude of the gage location.	float64

formulation_cost

File containing computational costs (in seconds) for all formulations being evaluated.

Sample file path: inputs/region/formulation_costs_secs_per_catchment.csv

Example rows:

formulation	cost
noah-owp-modular cfe-s t-route	10
noah-owp-modular cfe-x t-route	10
noah-owp-modular lasam t-route	15

Schema:

Column	Description	Type
formulation	Name of the NextGen formulation being evaluated.	object
cost	cost	int64

gage_divide_cwt_file

Crosswalk table linking gages to catchments (i.e., divides).

Sample file path: inputs/region/cwt_divide_gage/calib_gage_divide_conus.parquet

Example rows:

gage_id	divide_id	toid	areasqkm	vpuid	type
02365470	cat-503034	nex-503035	16.58834950949662	03W	network
02365470	cat-503032	nex-503033	11.973599720998799	03W	network
02365470	cat-503033	nex-503034	10.24515036450065	03W	network

Schema:

Column	Description	Type
gage_id	Unique identifier for each gage.	object
divide_id	Unique identifier for each catchment.	object
toid	Unique identifier for the nexus that the catchment flows to.	object
areasqkm	Area of the catchment in square kilometers.	float64
vpuid	VPU the catchment belongs to.	object
type	type	object

hlr.attr_data_file

Example rows:

divide_id	AQPERMNEW	SLOPE	TAVE	PPT	PET	SAND	PMPE	MINELE	RELIEF	PFLATTOT	PFLATLOW	PFLATUP
cat-10	1.0	0.98096299171	49.68560028076	47.39239883423	25.74370002747	47.66790008545	21.64870071411	0.0	91.0	47.0	36.0	11.0
cat-100	4.062233885523227	0.7358617228741067	49.32496685256188	47.28242879080685	25.56762630800962	75.67956712022041	21.714803633677842	0.0	98.86110218981413	64.08453199974686	59.65283519760585	4.431696802141013
cat-1000	1.0	5.13249015808	39.36360168457	39.26169967651	20.641599655150003	27.19339942932	18.62010002136	203.00000000000003	761.9999999999999	8.0	8.0	0.0

Schema:

Column	Description	Type
divide_id	divide_id	object
AQPERMNEW	AQPERMNEW	float64
SLOPE	SLOPE	float64
TAVE	TAVE	float64
PPT	PPT	float64
PET	PET	float64
SAND	SAND	float64
PMPE	PMPE	float64
MINELE	MINELE	float64
RELIEF	RELIEF	float64
PFLATTOT	PFLATTOT	float64
PFLATLOW	PFLATLOW	float64
PFLATUP	PFLATUP	float64

hlr.attr_select_file

Example rows:

select	attr_name	description
1	AQPERMNEW	aquifer permeability
0	SLOPE	mean slope
1	TAVE	mean annual temperature

Schema:

Column	Description	Type
select	select	int64
attr_name	attr_name	object
description	description	object

manual_pairings

File containing manual pairings to update algorithm based donor-receiver pairs.

Sample file path: inputs/region/manual_pairs/manual_pairs_vpu03S.csv

Example rows:

receiver_divide_id	receiver_gage_id	donor_divide_id	donor_gage_id
cat-410687	nan	cat-423550	nan
cat-410688	nan	cat-423550	nan
cat-423248	nan	nan	23177483.0

Schema:

Column	Description	Type
receiver_divide_id	Unique identifier for the receiver catchment (i.e., divide).	object
receiver_gage_id	Unique identifier for the receiver gage.	float64
donor_divide_id	Unique identifier for the donor catchment (i.e., divide).	object
donor_gage_id	Unique identifier for the donor gage.	float64

ngen.attr_data_file

Example rows:

Schema:

Column	Description	Type
divide_id	divide_id	object
dksat	dksat	float64
psisat	psisat	float64
smcmax	smcmax	float64
smcwlt	smcwlt	float64
bexp	bexp	float64
ISLTYP	ISLTYP	float64
IVGTYP	IVGTYP	float64
cwpvt	cwpvt	float64
mfsno	mfsno	float64
mp	mp	float64
refkdt	refkdt	float64
slope_1km	slope_1km	float64
vcmx25	vcmx25	float64
Coeff	Coeff	float64
Zmax	Zmax	float64
Expon	Expon	float64
centroid_x	centroid_x	float64
centroid_y	centroid_y	float64
impervious	impervious	float64
elevation	elevation	float64
slope	slope	float64
aspect	aspect	float64
dist_4.twi	dist_4.twi	object
vpuid	vpuid	object

ngen.attr_select_file

Example rows:

select	attr_name	description
1	dksat	NWM parameter | saturated hydraulic conductivity
1	psisat	NWM parameter | saturated capillary head
1	smcmax	NWM parameter | saturated soil moisture content

Schema:

Column	Description	Type
select	select	int64
attr_name	attr_name	object
description	description	object

ngen_hydrofabric_file (layer: flowpaths)

NGEN Hydrofabric Catchment Divides for a VPU. Only the divides layer is used during regionalization.

Sample file path: inputs/region/hydrofabric/gpkg_vpu/vpu_03S.gpkg

Note

Geometry column omitted from preview table for brevity.

Example rows:

id	toid	mainstem	order	hydroseq	lengthkm	areasqkm	tot_drainage_areasqkm	has_divide	divide_id	poi_id	vpuid
wb-423670	nex-423671	2367049.0	1.0	13878	3.804038126747679	13.50224937450011	13.50224937450011	True	cat-423670	19675	03S
wb-423671	nex-423663	2367049.0	1.0	13877	2.3866099099488665	6.21449990999961	19.71674928449972	True	cat-423671	30620	03S
wb-423752	nex-423748	2367253.0	1.0	13876	5.861027417139365	9.15119957699985	9.15119957699985	True	cat-423752	None	03S

Schema:

Column	Description	Type
id	Identifier.	object
toid	Identifier of the downstream feature (nexus) to which this catchment drains.	object
mainstem	mainstem	float64
order	order	float64
hydroseq	hydroseq	int32
lengthkm	Length in kilometers.	float64
areasqkm	Area in square kilometers.	float64
tot_drainage_areasqkm	Total drainage area in square kilometers.	float64
has_divide	has_divide	bool
divide_id	Unique identifier for each catchment.	object
poi_id	poi_id	object
vpuid	VPU identifier.	object
geometry	Catchment geometry in WKT format.	geometry

ngen_hydrofabric_file (layer: divides)

NGEN Hydrofabric Catchment Divides for a VPU. Only the divides layer is used during regionalization.

Sample file path: inputs/region/hydrofabric/gpkg_vpu/vpu_03S.gpkg

Note

Geometry column omitted from preview table for brevity.

Example rows:

divide_id	toid	type	ds_id	areasqkm	vpuid	id	lengthkm	tot_drainage_areasqkm	has_flowline
cat-410946	inx-410946	internal	412593.0	78.3864003508807	03S	None	nan	nan	False
cat-410945	inx-410945	internal	412491.0	587.9079171090782	03S	None	nan	nan	False
cat-410944	inx-410944	internal	412643.0	162.52922207240118	03S	None	nan	nan	False

Schema:

Column	Description	Type
divide_id	Unique identifier for each catchment.	object
toid	Identifier of the downstream feature (nexus) to which this catchment drains.	object
type	Type of feature (e.g., divide).	object
ds_id	Drainage system identifier.	float64
areasqkm	Area in square kilometers.	float64
vpuid	VPU identifier.	object
id	Identifier.	object
lengthkm	Length in kilometers.	float64
tot_drainage_areasqkm	Total drainage area in square kilometers.	float64
has_flowline	Indicates if the catchment has a flowline.	bool
geometry	Catchment geometry in WKT format.	geometry

ngen_hydrofabric_file (layer: lakes)

NGEN Hydrofabric Catchment Divides for a VPU. Only the divides layer is used during regionalization.

Sample file path: inputs/region/hydrofabric/gpkg_vpu/vpu_03S.gpkg

Note

Geometry column omitted from preview table for brevity.

Example rows:

lake_id	LkArea	LkMxE	WeirC	WeirL	OrificeC	OrificeA	OrificeE	WeirE	ifd	Dam_Length	domain	poi_id	hf_id	reservoir_index_AnA	reservoir_index_Extended_AnA	reservoir_index_GDL_AK	reservoir_index_Medium_Range	reservoir_index_Short_Range	res_id	vpuid	lake_x	lake_y
55470.0	29.46616114	8.920000076293945	0.4	10.0	0.1	1.0	5.333333492279053	8.381999969482422	0.8999999761581421	10.0	CONUS	21	68240.0	nan	nan	nan	nan	nan	None	03S	1578114.466138742	542981.5336005107
84908.0	1.20577977	0.33000001311302185	0.4	10.0	0.1	1.0	-0.0833333283662796	0.2679999768733978	0.8999999761581421	10.0	CONUS	22	85362.0	nan	nan	nan	nan	nan	None	03S	1502038.5282795832	403864.604164357
84918.0	29.73956508	0.9599999785423279	0.4	10.0	0.1	1.0	-0.013333320617675781	0.8140000104904175	0.8999999761581421	10.0	CONUS	23	85476.0	nan	nan	nan	nan	nan	None	03S	1506759.286453132	398638.4477050715

Schema:

Column	Description	Type
lake_id	lake_id	float64
LkArea	LkArea	float64
LkMxE	LkMxE	float64
WeirC	WeirC	float64
WeirL	WeirL	float64
OrificeC	OrificeC	float64
OrificeA	OrificeA	float64
OrificeE	OrificeE	float64
WeirE	WeirE	float64
ifd	ifd	float64
Dam_Length	Dam_Length	float64
domain	domain	object
poi_id	poi_id	int32
hf_id	hf_id	float64
reservoir_index_AnA	reservoir_index_AnA	float64
reservoir_index_Extended_AnA	reservoir_index_Extended_AnA	float64
reservoir_index_GDL_AK	reservoir_index_GDL_AK	float64
reservoir_index_Medium_Range	reservoir_index_Medium_Range	float64
reservoir_index_Short_Range	reservoir_index_Short_Range	float64
res_id	res_id	object
vpuid	VPU identifier.	object
lake_x	lake_x	float64
lake_y	lake_y	float64
geometry	Catchment geometry in WKT format.	geometry

ngen_hydrofabric_file (layer: nexus)

NGEN Hydrofabric Catchment Divides for a VPU. Only the divides layer is used during regionalization.

Sample file path: inputs/region/hydrofabric/gpkg_vpu/vpu_03S.gpkg

Note

Geometry column omitted from preview table for brevity.

Example rows:

id	toid	type	vpuid	poi_id
nex-410950	wb-410950	nexus	03S	nan
nex-410951	wb-410951	nexus	03S	35070.0
nex-410952	wb-410952	nexus	03S	nan

Schema:

Column	Description	Type
id	Identifier.	object
toid	Identifier of the downstream feature (nexus) to which this catchment drains.	object
type	Type of feature (e.g., divide).	object
vpuid	VPU identifier.	object
poi_id	poi_id	float64
geometry	Catchment geometry in WKT format.	geometry

ngen_hydrofabric_file (layer: pois)

NGEN Hydrofabric Catchment Divides for a VPU. Only the divides layer is used during regionalization.

Sample file path: inputs/region/hydrofabric/gpkg_vpu/vpu_03S.gpkg

Note

Geometry column omitted from preview table for brevity.

Example rows:

poi_id	id	nex_id	vpuid
19675	wb-423670	nex-423671	03S
30620	wb-423671	nex-423663	03S
33526	wb-423728	nex-423654	03S

Schema:

Column	Description	Type
poi_id	poi_id	int32
id	Identifier.	object
nex_id	nex_id	object
vpuid	VPU identifier.	object
geometry	Catchment geometry in WKT format.	geometry

ngen_hydrofabric_file (layer: hydrolocations)

NGEN Hydrofabric Catchment Divides for a VPU. Only the divides layer is used during regionalization.

Sample file path: inputs/region/hydrofabric/gpkg_vpu/vpu_03S.gpkg

Note

Geometry column omitted from preview table for brevity.

Example rows:

poi_id	id	nex_id	hf_id	hl_link	hl_reference	hl_uri	hl_source	hl_x	hl_y	vpuid
3746	wb-424822	nex-424823	500802.0	030801020801	huc12	huc12-030801020801	ref-fab	1373704.7076079391	780484.8953634357	03S
5130	wb-421607	nex-421608	527202.0	030801030304	huc12	huc12-030801030304	ref-fab	1394634.9123926074	823759.1819836448	03S
4244	wb-411585	nex-411586	562802.0	030901011304	huc12	huc12-030901011304	ref-fab	1443372.7137063795	622233.1012130025	03S

Schema:

Column	Description	Type
poi_id	poi_id	int32
id	Identifier.	object
nex_id	nex_id	object
hf_id	hf_id	float64
hl_link	hl_link	object
hl_reference	hl_reference	object
hl_uri	hl_uri	object
hl_source	hl_source	object
hl_x	hl_x	float64
hl_y	hl_y	float64
vpuid	VPU identifier.	object
geometry	Catchment geometry in WKT format.	geometry

ngen_hydrofabric_file (layer: flowpath-attributes)

NGEN Hydrofabric Catchment Divides for a VPU. Only the divides layer is used during regionalization.

Sample file path: inputs/region/hydrofabric/gpkg_vpu/vpu_03S.gpkg

Note

Geometry column omitted from preview table for brevity.

Example rows:

link	to	Length_m	Y	n	nCC	BtmWdth	TopWdth	TopWdthCC	ChSlp	alt	So	MusX	MusK	gage	gage_nex_id	WaterbodyID	waterbody_nex_id	id	toid	vpuid
wb-423670	nex-423671	3804.0381267476787	0.46638980706096966	0.06	0.12	5.91191129054133	6.865928976757372	20.597786930272115	1.0227685851754977	20.0323429107666	0.003019662880502428	0.2	3600.0	None	None	None	None	wb-423670	nex-423671	03S
wb-423671	nex-423663	2386.6099099488665	0.5049858162860272	0.06	0.12	6.724094883296428	7.6995424965830574	23.098627489749173	0.9658168426003173	8.545430183410645	0.0035805726557105143	0.2	3600.0	02301695	nex-423663	None	None	wb-423671	nex-423663	03S
wb-423752	nex-423748	5861.027417139365	0.4298076586362661	0.06	0.12	5.179553884022866	6.102819373763817	18.30845812129145	1.07404494916444	38.86513137817383	0.00356021667742983	0.2	3600.0	None	None	None	None	wb-423752	nex-423748	03S

Schema:

Column	Description	Type
link	link	object
to	to	object
Length_m	Length_m	float64
Y	Y	float64
n	n	float64
nCC	nCC	float64
BtmWdth	BtmWdth	float64
TopWdth	TopWdth	float64
TopWdthCC	TopWdthCC	float64
ChSlp	ChSlp	float64
alt	alt	float64
So	So	float64
MusX	MusX	float64
MusK	MusK	float64
gage	gage	object
gage_nex_id	gage_nex_id	object
WaterbodyID	WaterbodyID	object
waterbody_nex_id	waterbody_nex_id	object
id	Identifier.	object
toid	Identifier of the downstream feature (nexus) to which this catchment drains.	object
vpuid	VPU identifier.	object
geometry	Catchment geometry in WKT format.	geometry

ngen_hydrofabric_file (layer: network)

NGEN Hydrofabric Catchment Divides for a VPU. Only the divides layer is used during regionalization.

Sample file path: inputs/region/hydrofabric/gpkg_vpu/vpu_03S.gpkg

Note

Geometry column omitted from preview table for brevity.

Example rows:

id	toid	divide_id	ds_id	mainstem	hydroseq	hf_source	hf_id	lengthkm	areasqkm	tot_drainage_areasqkm	type	vpuid	hf_hydroseq	hf_lengthkm	hf_mainstem	topo	poi_id	hl_uri
wb-423666	tnx-1000002837	cat-423666	nan	2367036.0	13772.0	NOAA Reference Fabric	16918808.0	4.261507434137776	7.4394003734988585	1033.6455015839595	terminal	03S	2367036.0	7.742660026156029	2367036.0	fl-nex	nan	None
wb-423787	tnx-1000002836	cat-423787	nan	2367331.0	13771.0	NOAA Reference Fabric	16927768.0	0.6257802608509306	6.075450342000487	6.075450342000487	terminal	03S	2367331.0	0.6257802608509306	2367331.0	fl-nex	nan	None
wb-423786	tnx-1000002835	cat-423786	nan	2367329.0	13770.0	NOAA Reference Fabric	16924548.0	1.4300169212241527	0.6268500720000907	0.6268500720000907	terminal	03S	2367330.0	1.0540261556064199	2367329.0	fl-nex	nan	None

Schema:

Column	Description	Type
id	Identifier.	object
toid	Identifier of the downstream feature (nexus) to which this catchment drains.	object
divide_id	Unique identifier for each catchment.	object
ds_id	Drainage system identifier.	float64
mainstem	mainstem	float64
hydroseq	hydroseq	float64
hf_source	hf_source	object
hf_id	hf_id	float64
lengthkm	Length in kilometers.	float64
areasqkm	Area in square kilometers.	float64
tot_drainage_areasqkm	Total drainage area in square kilometers.	float64
type	Type of feature (e.g., divide).	object
vpuid	VPU identifier.	object
hf_hydroseq	hf_hydroseq	float64
hf_lengthkm	hf_lengthkm	float64
hf_mainstem	hf_mainstem	float64
topo	topo	object
poi_id	poi_id	float64
hl_uri	hl_uri	object
geometry	Catchment geometry in WKT format.	geometry

ngen_hydrofabric_file (layer: divide-attributes)

NGEN Hydrofabric Catchment Divides for a VPU. Only the divides layer is used during regionalization.

Sample file path: inputs/region/hydrofabric/gpkg_vpu/vpu_03S.gpkg

Note

Geometry column omitted from preview table for brevity.

Example rows:

Schema:

Column	Description	Type
divide_id	Unique identifier for each catchment.	object
mode.bexp_soil_layers_stag=1	mode.bexp_soil_layers_stag=1	float64
mode.bexp_soil_layers_stag=2	mode.bexp_soil_layers_stag=2	float64
mode.bexp_soil_layers_stag=3	mode.bexp_soil_layers_stag=3	float64
mode.bexp_soil_layers_stag=4	mode.bexp_soil_layers_stag=4	float64
mode.ISLTYP	mode.ISLTYP	float64
mode.IVGTYP	mode.IVGTYP	float64
geom_mean.dksat_soil_layers_stag=1	geom_mean.dksat_soil_layers_stag=1	float64
geom_mean.dksat_soil_layers_stag=2	geom_mean.dksat_soil_layers_stag=2	float64
geom_mean.dksat_soil_layers_stag=3	geom_mean.dksat_soil_layers_stag=3	float64
geom_mean.dksat_soil_layers_stag=4	geom_mean.dksat_soil_layers_stag=4	float64
geom_mean.psisat_soil_layers_stag=1	geom_mean.psisat_soil_layers_stag=1	float64
geom_mean.psisat_soil_layers_stag=2	geom_mean.psisat_soil_layers_stag=2	float64
geom_mean.psisat_soil_layers_stag=3	geom_mean.psisat_soil_layers_stag=3	float64
geom_mean.psisat_soil_layers_stag=4	geom_mean.psisat_soil_layers_stag=4	float64
mean.cwpvt	mean.cwpvt	float64
mean.mfsno	mean.mfsno	float64
mean.mp	mean.mp	float64
mean.refkdt	mean.refkdt	float64
mean.slope_1km	mean.slope_1km	float64
mean.smcmax_soil_layers_stag=1	mean.smcmax_soil_layers_stag=1	float64
mean.smcmax_soil_layers_stag=2	mean.smcmax_soil_layers_stag=2	float64
mean.smcmax_soil_layers_stag=3	mean.smcmax_soil_layers_stag=3	float64
mean.smcmax_soil_layers_stag=4	mean.smcmax_soil_layers_stag=4	float64
mean.smcwlt_soil_layers_stag=1	mean.smcwlt_soil_layers_stag=1	float64
mean.smcwlt_soil_layers_stag=2	mean.smcwlt_soil_layers_stag=2	float64
mean.smcwlt_soil_layers_stag=3	mean.smcwlt_soil_layers_stag=3	float64
mean.smcwlt_soil_layers_stag=4	mean.smcwlt_soil_layers_stag=4	float64
mean.vcmx25	mean.vcmx25	float64
mean.Coeff	mean.Coeff	float64
mean.Zmax	mean.Zmax	float64
mode.Expon	mode.Expon	float64
centroid_x	centroid_x	float64
centroid_y	centroid_y	float64
mean.impervious	mean.impervious	float64
mean.elevation	mean.elevation	float64
mean.slope	mean.slope	float64
circ_mean.aspect	circ_mean.aspect	float64
dist_4.twi	dist_4.twi	object
vpuid	VPU identifier.	object
geometry	Catchment geometry in WKT format.	geometry

snow_cover_file

File containing snow cover fraction for all catchments in a NWM domain (e.g., CONUS).

Sample file path: inputs/region/snow_frac/vpu03S_snow_frac.parquet

Example rows:

divide_id	snow_pc_hydroatlas
cat-410946	0.0
cat-410945	0.0
cat-410944	0.0

Schema:

Column	Description	Type
divide_id	Unique identifier for each catchment.	object
snow_pc_hydroatlas	snowcover percentage from HydroATLAS dataset	float64

streamcat.attr_data_file

Example rows:

divide_id	BFI	CanalDens	DamDens	DamNIDStor	DamNrmStor	Elev	Perm	Om	RckDep	WtDep	AgKffact	Kffact	PctAlkIntruVol	PctAlluvCoast	PctCarbResid	PctCoastCrs	PctColluvSed	PctEolCrs	PctEolFine	PctExtruVol	PctGlacLakeCrs	PctGlacLakeFine	PctGlacTilClay	PctGlacTilCrs	PctGlacTilLoam	PctHydric	PctNonCarbResid	PctSalLake	PctSilicic	PctWater	Precip	Tmax	Tmean	Tmin	RdDens	Runoff	Clay	Sand	Precip_Minus_EVT
cat-1	50.97614977871673	0.0	0.0	0.0	0.0	4.41573220047481	0.9327959862648094	0.16721313470521276	7.124522606720663	6.410044831293111	0.0	0.23598567162637368	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	100.00000000000001	0.0	0.0	0.0	0.0	0.0	0.0	1248.0793687420046	16.40189576196621	11.64019762480423	-5.201682360844988	0.5468780338934144	621.0	0.3689421336222836	2.8666550631382157	42.01070572178115
cat-10	61.0	0.0	0.0	0.0	0.0	0.03	0.0	0.0	0.0	0.0	0.0	0.24	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	100.0	0.0	0.0	0.0	0.0	0.0	0.0	1143.243408205	15.01485443115	10.40089797975	-5.19999980925	6.3185	705.0	0.0	0.0	46.0
cat-100	57.861776267329795	0.0	0.12263365999918233	51110.52451192907	22255.567108017753	24.662106685497744	39.64840113848574	0.3646600642603927	148.66528493995057	164.94400452907053	0.00958470130740571	0.15246596463167286	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	99.62427699449351	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	1244.2868206418714	14.698732493942293	10.213878933060482	-5.523975540000376	5.378409398214846	699.9999999999999	2.9396928974825243	78.3037261254769	50.724319985883874

Schema:

Column	Description	Type
divide_id	divide_id	object
BFI	BFI	float64
CanalDens	CanalDens	float64
DamDens	DamDens	float64
DamNIDStor	DamNIDStor	float64
DamNrmStor	DamNrmStor	float64
Elev	Elev	float64
Perm	Perm	float64
Om	Om	float64
RckDep	RckDep	float64
WtDep	WtDep	float64
AgKffact	AgKffact	float64
Kffact	Kffact	float64
PctAlkIntruVol	PctAlkIntruVol	float64
PctAlluvCoast	PctAlluvCoast	float64
PctCarbResid	PctCarbResid	float64
PctCoastCrs	PctCoastCrs	float64
PctColluvSed	PctColluvSed	float64
PctEolCrs	PctEolCrs	float64
PctEolFine	PctEolFine	float64
PctExtruVol	PctExtruVol	float64
PctGlacLakeCrs	PctGlacLakeCrs	float64
PctGlacLakeFine	PctGlacLakeFine	float64
PctGlacTilClay	PctGlacTilClay	float64
PctGlacTilCrs	PctGlacTilCrs	float64
PctGlacTilLoam	PctGlacTilLoam	float64
PctHydric	PctHydric	float64
PctNonCarbResid	PctNonCarbResid	float64
PctSalLake	PctSalLake	float64
PctSilicic	PctSilicic	float64
PctWater	PctWater	float64
Precip	Precip	float64
Tmax	Tmax	float64
Tmean	Tmean	float64
Tmin	Tmin	float64
RdDens	RdDens	float64
Runoff	Runoff	float64
Clay	Clay	float64
Sand	Sand	float64
Precip_Minus_EVT	Precip_Minus_EVT	float64

streamcat.attr_select_file

Example rows:

select	attr_name	description
1	BFI	Baseflow is the component of streamflow that can be attributed to ground-water discharge into streams. The Baseflow Index (BFI) is the ratio of baseflow to total flow, expressed as a percentage, within catchment.
1	CanalDens	Density of NHDPlus line features classified as canal, ditch, or pipeline within the catchment or watershed.
1	DamDens	Density of georeferenced dams within catchment (dams/ square km) based on the National Inventory of Dams (https://catalog.data.gov/dataset/national-inventory-of-dams)

Schema:

Column	Description	Type
select	select	int64
attr_name	attr_name	object
description	description	object