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Maria 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 Maria 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 format
HSA format
AVAPS format
DOPPLER links to doppler/dropsonde graphs

September 08, 2011

2011/09/08 USAF 306 TEMPDROP | AVAPS

September 09, 2011

2011/09/09 USAF 306 TEMPDROP | AVAPS

2011/09/09 USAF 307 before 24Z TEMPDROP | AVAPS

September 10, 2011

2011/09/10 USAF 307 after 24Z TEMPDROP | AVAPS

2011/09/10 USAF 308 TEMPDROP | AVAPS

2011/09/10 USAF 307 before 24Z TEMPDROP | AVAPS

September 11, 2011

2011/09/11 USAF 307 after 24Z TEMPDROP | AVAPS

2011/09/11 USAF 308 TEMPDROP | AVAPS

September 14, 2011

2011/09/14 USAF 305 TEMPDROP | AVAPS

AVAPS - Indicates file not available

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