hwrf.fcsttask Namespace Reference

Runs the real_nmm or wrf executables. More...

Detailed Description

Runs the real_nmm or wrf executables.

This module, contrary to its name, implements HWRFTask classes to run the real_nmm and WRF, including tasks to make the the wrfanl and ghost files. The uncoupled forecast is found in the WRFAtmos class. The coupled forecast is not in this module: it is hwrf.mpipomtc instead.

All classes you will want to use derive from WRFTaskBase and FcstTask, classes that exist solely to simplify later code. These are the classes you will want to use:

• RealNMM - to run the real_nmm program
• WRFAnl, WRFAnl4Trak - 1 minute simulation to generate wrfanl files
• WRFGhost, WRFGhostForPost - 1 minute simulation to generate wrfghost files
• WRFAtmos - full-length uncoupled forecast
• AnalysisCycle - short (1-6 hour) forecast that outputs wrfinput and wrfghost files, suitable for input to another AnalysisCycle
• hwrf.mpipomtc.WRFCoupledPOM - coupled WRF+POM forecast, in the hwrf.mpipomtc module

All of these classes take input from one another, or from other sources. The abstract base class FcstTask keeps track of those through its FcstTask.add_input() function. The WRFTaskBase class provides simple functions to call add_input for you. Those inputs are stored in objects of class Input2Fcst and its subclasses:

• Geog2WRF (WRFTaskBase.add_geogrid()) - geogrid data from hwrf.wps.Geogrid
• Met2WRF (WRFTaskBase.add_metgrid()) - metgrid data from hwrf.wps.Metgrid
• WRFInput2WRF (WRFTaskBase.add_wrfinput()) - wrfinput data from RealNMM, AnalysisCycle, hwrf.relocate.Merge or hwrf.ensda.FromPriorCycle
• Fort652WRF (WRFTaskBase.add_fort65()) - coupler fort.65 file from RealNMM
• WRFAnl2WRF (WRFTaskBase.add_wrfanl()) - wrf analysis (time 0 restart) files from WRFAnl, WRFAnl4Trak, WRFGhost, WRFGhostForPost, AnalysisCycle, hwrf.relocate.Merge or hwrf.relocate.RelocationTask (and its subclasses)
• WRFBdy2WRF (WRFTaskBase.add_wrfbdy()) - wrf boundary (wrfbdy) files from RealNMM
• Prep2WRF (WRFTaskBase.add_prep_hybrid()) - prep_hybrid files from hwrf.prep.PrepHybrid

Classes
class	AnalysisCycle
	runs wrf for an analysis cycle More...
class	FcstTask
	abstract base class of anything that runs or prepares input for a forecast model More...
class	Fort652WRF
	Links real_nmm fort.65 files the current directory for a wrf run. More...
class	Geog2WRF
	Links Geogrid data to the current directory for a wrf or real_nmm run. More...
class	Input2Fcst
	abstract base class of wrf/real_nmm input providers More...
class	Met2WRF
	Links Metgrid data to the current directory for a wrf or real_nmm run. More...
class	Prep2WRF
	Links prep_hybrid files to the current directory for a real_nmm run. More...
class	RealNMM
	a HWRFTask subclass that runs real_nmm More...
class	WRFAnl
	runs a short WRF simulation to generate wrfanl files More...
class	WRFAnl2WRF
	Links wrfanl or ghost files the current directory for a wrf run. More...
class	WRFAnl4Trak
	runs wrfanl and generates a track file More...
class	WRFAtmos
	The uncoupled HWRF forecast Task. More...
class	WRFBdy2WRF
	Links real_nmm wrfbdy_d01 files the current directory for a wrf run. More...
class	WRFGhost
	runs a short WRF simulation to generate wrfanl files named "ghost" More...
class	WRFGhostForPost
	runs wrf to generate ghost (wrfanl) and wrfout files More...
class	WRFInput2WRF
	Links real_nmm wrfinput_d01 files the current directory for a wrf run. More...
class	WRFTaskBase
	base class of classes that run wrf or real_nmm More...

Variables
list	__all__ = ['FcstTask']
	List of variables imported by "from hwrf.fcsttask import *".
tuple	anl_fudge_factor = fractions.Fraction(2,3)
	tricks wrf into outputting child domains' data This is used by WRFAnl.make_wrf() to modify the simulation end time in order to trick the WRF into outputting child domains' data. More...
tuple	JUST_MOAD = object()
	request only the outermost domain More...
tuple	ALL_DOMS = object()
	request all domains More...

Variable Documentation

tuple hwrf.fcsttask.ALL_DOMS = object()

request all domains

Special value for the trakdoms argument to WRFAnl4Trak.__init__(). Requests that all domains be used in generating the parent model track

Definition at line 1340 of file fcsttask.py.

tuple hwrf.fcsttask.anl_fudge_factor = fractions.Fraction(2,3)

tricks wrf into outputting child domains' data This is used by WRFAnl.make_wrf() to modify the simulation end time in order to trick the WRF into outputting child domains' data.

Definition at line 1204 of file fcsttask.py.

tuple hwrf.fcsttask.JUST_MOAD = object()

request only the outermost domain

Special value for the trakdoms argument to WRFAnl4Trak.__init__(). Requests that only the outermost domain be used in generating the parent model track

Definition at line 1334 of file fcsttask.py.