MiddleFork04.ssn: MiddleFork04.ssn data folder
In jayverhoef/SSN: Spatial Modeling on Stream Networks
MiddleFork04.ssn R Documentation
MiddleFork04.ssn data folder
Description
The MiddleFork04.ssn data folder contains the spatial, attribute, and topological
information needed to construct a spatial stream network object using the SSN
package.
Details
The MiddleFork04.ssn folder contains five spatial datasets:
edges: polyline shapefile representing the stream network
sites: point shapefile representing the observed site locations
CapeHorn: point shapefile representing prediction site locations on the Cape
Horn River
Knapp: point shapefile representing prediction site locations on the Knapp
River
pred1km: point shapefile representing the prediction site locations
There is also 1 text file, netID1.txt, which contain the topological information
for the stream network in the Middle Fork dataset.
Attribute data is also stored within each of the spatial datasets. The column
names are defined as follows:
edges:
COMID: Common identifier of an NHD feature or relationship
GNIS_ID: Geographic Names Information System identifier
GNIS_Name: Feature name as found in the Geographic Names Information System
LENGTHKM: Length (km)
REACHCODE: Unique identifier for a reach. The first 8 digits contain
the identfier for the HUC8 and the last 6 digits are a
unique within-HUC8 identifier for the reach
FCODE: Numeric code that contains the feature type and it's attributes
as found in the NHDFCode lookup table
CUMdrainAG: Cumulative drainage area (km2) for the lowermost location on the
edge
AREAWTMAP: Area weighted mean annual precipitation (mm) at the lowermost
location on the edge
SLOPE: Slope of the edge (cm/cm)
h2oAreaKm2: Watershed area (km2) for the lowermost location on the line segment
rid: Reach identifier
areaPI: Segment proportional influence value, calculated using watershed
area (h2oAreaKm2)
afvArea: Additive function value, calculated using areaPI
upDist: Distance from the stream outlet (most downstream location in the
the stream network) to the uppermost location on the line segment
netID: Network identifier
Length: Length of line segment (m)
sites:
STREAMNAME: Stream name
COMID: Common identifier of an NHD feature or relationship
CUMDRAINAG: Cumulative drainage area (km2)
AREAWTMAP: Area weighted mean annual precipitation (mm) at lowermost location
on the line segment where the site resides
SLOPE: Slope of the line segment (cm/cm) where the site resides
ELEV_DEM: Elevation at the site based on a 30m DEM
Deployment: Unique identifier of the site by year of deployment
NumberOfDa: Number of days sampled between the dates of July 15 and August 31.
Maximum value is 48.
Source: Source of the data - relates to the ID field of the source table
Summer_mn: Overall summer mean termperature of the deployment
MaxOver20: Binary variable: 1 represents the maximum summer temperature was
greater than 20C and 0 indicates that it was less than 20C
C16: the number of times daily stream temperature exceeded 16C
C20: the number of times daily stream temperature exceeded 20C
C24: the number of times daily stream temperature exceeded 24C
FlowCMS: Average stream flow (cubic meters per sec) for August, by year,
from 1950-2010 across 9 USGS gauges in the region
AirMEANc: Average mean air temperature (C) from July 15 - August 31, from
1980-2009 across 10 COOP air stations within the domain
AirMWMTc: Average maximum air temperature (C) from July 15 - August 31, from
1980-2009 across 10 COOP air stations within the domain. MWMT =
maximum 7-day moving average of the maximum daily temperature
(i.e. maximum of all the 7-day maximums)
NEAR_FID: the FID of the nearest edge feature
NEAR_DIST: the distance between the original site coordinates and the nearest
edge
NEAR_X: x coordinate
NEAR_Y: y coordinate
NEAR_ANGLE: the angle between the original site location and the nearest
point on the closest edge
rid: Reach identifier of the edge the site resides on
ratio: Site ratio value; provides the proportional distance along the
edge to the site location
upDist: Distance upstream from the stream outlet (m)
afvArea: Additive function value calculated using waterhsed area (h2oAreaKm2)
locID: Location identifier
netID: Stream network identifier
pid: Point identifier
pred1km, CapeHorn, & Knapp:
COMID: Common identifier of an NHD feature or relationship
CUMDRAINAG: Cumulative drainage area (km2)
AREAWTMAP: Area weighted mean annual precipitation (mm) at lowermost location
on the line segment where the site resides
SLOPE: Slope of the line segment (cm/cm) where the site resides
ELEV_DEM: Elevation at the site based on a 30m DEM
NEAR_FID: the FID of the nearest edge feature
NEAR_DIST: the distance between the original site coordinates and the nearest
edge
NEAR_X: x coordinate
NEAR_Y: y coordinate
NEAR_ANGLE: the angle between the original site location and the nearest
point on the closest edge
rid: Reach identifier of the edge the site resides on
ratio: Site ratio value; provides the proportional distance along the
edge to the site location
upDist: Distance upstream from the stream outlet (m)
afvArea: Additive function value calculated using watershed area (h2oAreaKm2)
locID: Location identifier
netID: Stream network identifier
pid: Point identifier
FlowCMS: Average stream flow (cubic meters per sec) for August, by year,
from 1950-2010 across 9 USGS gauges in the region
AirMEANc: Average mean air temperature (C) from July 15 - August 31, from
1980-2009 across 10 COOP air stations within the domain
AirMWMTc: Average maximum air temperature (C) from July 15 - August 31, from
1980-2009 across 10 COOP air stations within the domain. MWMT =
maximum 7-day moving average of the maximum daily temperature
(i.e. maximum of all the 7-day maximums)
Source
edges: modified version of the National Hydrography Dataset (http://nhd.usgs.gov/)
sites, pred1km, CapeHorn, & Knapp: U.S. Forest Service, unpublished data.
Examples
library(SSN)
#for examples, copy MiddleFork04.ssn directory to R's temporary directory
copyLSN2temp()
mf04p <- importSSN(paste0(tempdir(),'/MiddleFork04.ssn'), predpts = "pred1km",
o.write = TRUE)
mf04p <- importPredpts(target = mf04p, predpts = "CapeHorn", obj.type = "ssn")
mf04p <- importPredpts(target = mf04p, predpts = "Knapp", obj.type = "ssn")
names(mf04p)
jayverhoef/SSN documentation built on May 1, 2023, 1:04 p.m.
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| MiddleFork04.ssn | R Documentation |
MiddleFork04.ssn data folder
Description
The MiddleFork04.ssn data folder contains the spatial, attribute, and topological information needed to construct a spatial stream network object using the SSN package.
Details
The MiddleFork04.ssn folder contains five spatial datasets:
edges: polyline shapefile representing the stream network
sites: point shapefile representing the observed site locations
CapeHorn: point shapefile representing prediction site locations on the Cape
Horn River
Knapp: point shapefile representing prediction site locations on the Knapp
River
pred1km: point shapefile representing the prediction site locations
There is also 1 text file, netID1.txt, which contain the topological information
for the stream network in the Middle Fork dataset.
Attribute data is also stored within each of the spatial datasets. The column
names are defined as follows:
edges:
COMID: Common identifier of an NHD feature or relationship
GNIS_ID: Geographic Names Information System identifier
GNIS_Name: Feature name as found in the Geographic Names Information System
LENGTHKM: Length (km)
REACHCODE: Unique identifier for a reach. The first 8 digits contain
the identfier for the HUC8 and the last 6 digits are a
unique within-HUC8 identifier for the reach
FCODE: Numeric code that contains the feature type and it's attributes
as found in the NHDFCode lookup table
CUMdrainAG: Cumulative drainage area (km2) for the lowermost location on the
edge
AREAWTMAP: Area weighted mean annual precipitation (mm) at the lowermost
location on the edge
SLOPE: Slope of the edge (cm/cm)
h2oAreaKm2: Watershed area (km2) for the lowermost location on the line segment
rid: Reach identifier
areaPI: Segment proportional influence value, calculated using watershed
area (h2oAreaKm2)
afvArea: Additive function value, calculated using areaPI
upDist: Distance from the stream outlet (most downstream location in the
the stream network) to the uppermost location on the line segment
netID: Network identifier
Length: Length of line segment (m)
sites:
STREAMNAME: Stream name
COMID: Common identifier of an NHD feature or relationship
CUMDRAINAG: Cumulative drainage area (km2)
AREAWTMAP: Area weighted mean annual precipitation (mm) at lowermost location
on the line segment where the site resides
SLOPE: Slope of the line segment (cm/cm) where the site resides
ELEV_DEM: Elevation at the site based on a 30m DEM
Deployment: Unique identifier of the site by year of deployment
NumberOfDa: Number of days sampled between the dates of July 15 and August 31.
Maximum value is 48.
Source: Source of the data - relates to the ID field of the source table
Summer_mn: Overall summer mean termperature of the deployment
MaxOver20: Binary variable: 1 represents the maximum summer temperature was
greater than 20C and 0 indicates that it was less than 20C
C16: the number of times daily stream temperature exceeded 16C
C20: the number of times daily stream temperature exceeded 20C
C24: the number of times daily stream temperature exceeded 24C
FlowCMS: Average stream flow (cubic meters per sec) for August, by year,
from 1950-2010 across 9 USGS gauges in the region
AirMEANc: Average mean air temperature (C) from July 15 - August 31, from
1980-2009 across 10 COOP air stations within the domain
AirMWMTc: Average maximum air temperature (C) from July 15 - August 31, from
1980-2009 across 10 COOP air stations within the domain. MWMT =
maximum 7-day moving average of the maximum daily temperature
(i.e. maximum of all the 7-day maximums)
NEAR_FID: the FID of the nearest edge feature
NEAR_DIST: the distance between the original site coordinates and the nearest
edge
NEAR_X: x coordinate
NEAR_Y: y coordinate
NEAR_ANGLE: the angle between the original site location and the nearest
point on the closest edge
rid: Reach identifier of the edge the site resides on
ratio: Site ratio value; provides the proportional distance along the
edge to the site location
upDist: Distance upstream from the stream outlet (m)
afvArea: Additive function value calculated using waterhsed area (h2oAreaKm2)
locID: Location identifier
netID: Stream network identifier
pid: Point identifier
pred1km, CapeHorn, & Knapp:
COMID: Common identifier of an NHD feature or relationship
CUMDRAINAG: Cumulative drainage area (km2)
AREAWTMAP: Area weighted mean annual precipitation (mm) at lowermost location
on the line segment where the site resides
SLOPE: Slope of the line segment (cm/cm) where the site resides
ELEV_DEM: Elevation at the site based on a 30m DEM
NEAR_FID: the FID of the nearest edge feature
NEAR_DIST: the distance between the original site coordinates and the nearest
edge
NEAR_X: x coordinate
NEAR_Y: y coordinate
NEAR_ANGLE: the angle between the original site location and the nearest
point on the closest edge
rid: Reach identifier of the edge the site resides on
ratio: Site ratio value; provides the proportional distance along the
edge to the site location
upDist: Distance upstream from the stream outlet (m)
afvArea: Additive function value calculated using watershed area (h2oAreaKm2)
locID: Location identifier
netID: Stream network identifier
pid: Point identifier
FlowCMS: Average stream flow (cubic meters per sec) for August, by year,
from 1950-2010 across 9 USGS gauges in the region
AirMEANc: Average mean air temperature (C) from July 15 - August 31, from
1980-2009 across 10 COOP air stations within the domain
AirMWMTc: Average maximum air temperature (C) from July 15 - August 31, from
1980-2009 across 10 COOP air stations within the domain. MWMT =
maximum 7-day moving average of the maximum daily temperature
(i.e. maximum of all the 7-day maximums)
Source
edges: modified version of the National Hydrography Dataset (http://nhd.usgs.gov/) sites, pred1km, CapeHorn, & Knapp: U.S. Forest Service, unpublished data.
Examples
library(SSN)
#for examples, copy MiddleFork04.ssn directory to R's temporary directory
copyLSN2temp()
mf04p <- importSSN(paste0(tempdir(),'/MiddleFork04.ssn'), predpts = "pred1km",
o.write = TRUE)
mf04p <- importPredpts(target = mf04p, predpts = "CapeHorn", obj.type = "ssn")
mf04p <- importPredpts(target = mf04p, predpts = "Knapp", obj.type = "ssn")
names(mf04p)
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Note that we can't provide technical support on individual packages. You should contact the package authors for that.
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