Don 2011 sondes

Important Notice about dropsonde data:

A dry bias in the RD94 and mini dropsonde (NRD94) humidity measurements has been discovered, which existed ftom 2010 to 2015. This document describes the background of the dry bias, how to identify impacted files, how to correct existing data, and how to implement a correction in AVAPS. ASPEN version 3.3-236 is used to correct this dry bias both in reprocessing of existing data as well as in real time data acquisition within AVAPS.

Below are listings of transmitted sonde data from reconnaissance aircraft missions into Don along with PDFs of synoptic plots of the dropsonde data. Also are pages showing the key and examples of the FRD, HSA, AVAPS and TEMPDROP formats.

FRD,CAT formats
HSA format
AVAPS format
TEMPDROP format
DOPPLER links to doppler/dropsonde graphs

July 27, 2011

USAF 300 TEMPDROP | AVAPS

July 28, 2011

July 29, 2011

USAF 307 after 24Z TEMPDROP | AVAPS
USAF 303 TEMPDROP | AVAPS
USAF 306 before 24 Z TEMPDROP | AVAPS

July 30, 2011

USAF 306 after 24 Z TEMPDROP | AVAPS

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