GetNHDStreamflowGageIdentifiersAndLocation Namespace Reference

Get NHDPlus2 streamflow gage identifiers (reachcode, measure along reach in percent) for a USGS gage. More...

Variables
tuple	parser = argparse.ArgumentParser(description='Get NHDPlus2 streamflow gage identifiers for a USGS gage.')
string	help = 'The configuration file'
tuple	args = parser.parse_args()
tuple	cmdline = GenericMetadata.getCommandLine()
	configFile = None
tuple	context = Context(args.projectDir, configFile)
tuple	result = getNHDReachcodeAndMeasureForGageSourceFea(context.config, args.gageid)
list	reachcode = result[0]
list	measure = result[1]
list	gage_lat = result[1]
list	gage_lon = result[0]
string	source = 'http://www.horizon-systems.com/NHDPlus/NHDPlusV2_home.php'
tuple	shpFilename
tuple	asset = AssetProvenance(GenericMetadata.MANIFEST_SECTION)

Detailed Description

Get NHDPlus2 streamflow gage identifiers (reachcode, measure along reach in percent) for a USGS gage.

Get lat/lon, in WGS84 (EPSG:4326), from gage point layer (Gage_Loc) for gage identified by a source_fea (e.g. USGS Site Number)

This software is provided free of charge under the New BSD License. Please see the following license information:

Copyright (c) 2013, University of North Carolina at Chapel Hill All rights reserved.

Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:

• Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.
• Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.
• Neither the name of the University of North Carolina at Chapel Hill nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE UNIVERSITY OF NORTH CAROLINA AT CHAPEL HILL BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

Author

Brian Miles brian.nosp@m._mil.nosp@m.es@un.nosp@m.c.ed.nosp@m.u

Pre conditions

1. Configuration file must define the following sections and values: 'NHDPLUS2', 'PATH_OF_NHDPLUS2_DB' 'NHDPLUS2', 'PATH_OF_NHDPLUS2_GAGELOC'

Post conditions

1. Will write the following entry(ies) to the manifest section of metadata associated with the project directory: gage [the name of the streamflow gage shapefile]
2. Will write the following entry(ies) to the study area section of metadata associated with the project directory: gage_id_attr [the name of the attribute in the gage shapefile that uniquely identifies a streamflow gage] gage_id nhd_gage_reachcode nhd_gage_measure_pct gage_lat_wgs84 gage_lon_wgs84

Usage:

GetNHDStreamflowGageIdentifiersAndLocation.py -p /path/to/project_dir -g 01589330

Note

EcohydroLib configuration file must be specified by environmental variable 'ECOHYDROWORKFLOW_CFG', or -i option must be specified.

Variable Documentation

tuple GetNHDStreamflowGageIdentifiersAndLocation.args = parser.parse_args()

tuple GetNHDStreamflowGageIdentifiersAndLocation.asset = AssetProvenance(GenericMetadata.MANIFEST_SECTION)

tuple GetNHDStreamflowGageIdentifiersAndLocation.cmdline = GenericMetadata.getCommandLine()

GetNHDStreamflowGageIdentifiersAndLocation.configFile = None

tuple GetNHDStreamflowGageIdentifiersAndLocation.context = Context(args.projectDir, configFile)

list GetNHDStreamflowGageIdentifiersAndLocation.gage_lat = result[1]

list GetNHDStreamflowGageIdentifiersAndLocation.gage_lon = result[0]

string GetNHDStreamflowGageIdentifiersAndLocation.help = 'The configuration file'

list GetNHDStreamflowGageIdentifiersAndLocation.measure = result[1]

tuple GetNHDStreamflowGageIdentifiersAndLocation.parser = argparse.ArgumentParser(description='Get NHDPlus2 streamflow gage identifiers for a USGS gage.')

list GetNHDStreamflowGageIdentifiersAndLocation.reachcode = result[0]

tuple GetNHDStreamflowGageIdentifiersAndLocation.result = getNHDReachcodeAndMeasureForGageSourceFea(context.config, args.gageid)

tuple GetNHDStreamflowGageIdentifiersAndLocation.shpFilename

Initial value:

= writeCoordinatePairsToPointShapefile(context.projectDir, "gage", 
                                                   "gage_id", [args.gageid], [(gage_lon, gage_lat)])

string GetNHDStreamflowGageIdentifiersAndLocation.source = 'http://www.horizon-systems.com/NHDPlus/NHDPlusV2_home.php'