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WRF ARW User's Guide - MMM - UCAR

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<strong>WRF</strong>-VAR<br />

g. Other namelist variables to control radiance assimilation<br />

RAD_MONITORING (30)<br />

Integer array of dimension RTMINIT_NSENSER, where 0 for assimilating mode,<br />

1 for monitoring mode (only calculate innovation).<br />

THINNING<br />

Logical, TRUE will perform thinning on radiance data.<br />

THINNING_MESH (30)<br />

Real array with dimension RTMINIT_NSENSOR, values indicate thinning mesh<br />

(in KM) for different sensors.<br />

QC_RAD<br />

Logical, control if perform quality control, always set to TRUE.<br />

WRITE_IV_RAD_ASCII<br />

Logical, control if output Observation minus Background files which are in AS-<br />

CII format and separated by sensors and processors.<br />

WRITE_OA_RAD_ASCII<br />

Logical, control if output Observation minus Analysis files (including also O minus<br />

B) which are ASCII format and separated by sensors and processors.<br />

USE_ERROR_FACTOR_RAD<br />

Logical, controls use of a radiance error tuning factor file “radiance_error.factor”,<br />

which is created with empirical values or generated using variational tunning<br />

method (Desroziers and Ivanov, 2001)<br />

ONLY_SEA_RAD<br />

Logical, controls whether only assimilating radiance over water.<br />

TIME_WINDOW_MIN<br />

String, e.g., "2007-08-15_03:00:00.0000", start time of assimilation time window<br />

TIME_WINDOW_MAX<br />

String, e.g., "2007-08-15_09:00:00.0000", end time of assimilation time window<br />

CRTM_ATMOSPHERE<br />

Integer, used by CRTM to choose climatology reference profile used above model<br />

top (up to 0.01hPa).<br />

0: Invalid (default, use U.S. Standard Atmosphere)<br />

1: Tropical<br />

2: Midlatitude summer<br />

3: Midlatitude winter<br />

4: Subarctic summer<br />

5: Subarctic winter<br />

<strong>WRF</strong>-<strong>ARW</strong> V3: User’s <strong>Guide</strong> 6-26

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