Printer Friendly Version

Isaac 2012 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 Isaac 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
TEMPDROP format
AVAPS format
DOPPLER links to doppler/dropsonde graphs

August 22, 2012

USAF 307 (0209A) CSV | HSA | TEMPDROP | SKEW-T | AVAPS
USAF 307 (0309A) CSV | HSA | TEMPDROP | SKEW-T | AVAPS
NOAA 42 (0409A)  FRD | HSA | TEMPDROP | SKEW-T | AVAPS

August 23, 2012

USAF 307 (0509A) CSV | HSA | TEMPDROP | SKEW-T | AVAPS
NOAA 42 (0609A)  FRD | HSA | TEMPDROP | SKEW-T | AVAPS
USAF 300 (0709A) CSV | HSA | TEMPDROP | SKEW-T | AVAPS
NOAA 49 (0809A)  FRD | HSA | TEMPDROP | SKEW-T | AVAPS
NOAA 42 (0909A)  FRD | HSA | TEMPDROP | SKEW-T | AVAPS

August 24, 2012

USAF 300 (1009A) CSV | HSA | TEMPDROP | SKEW-T | AVAPS
NOAA 42 (1109A)  FRD | HSA | TEMPDROP | SKEW-T | AVAPS
USAF 300 (1209A) CSV | HSA | TEMPDROP | SKEW-T | AVAPS
NOAA 49 (1309A)  FRD | HSA | TEMPDROP | SKEW-T | AVAPS

August 25, 2012

NOAA 49 (1509A)  FRD | HSA | TEMPDROP | SKEW-T | AVAPS
USAF 303 (1609A) CSV | HSA | TEMPDROP | SKEW-T | AVAPS
NOAA 49 (1709A)  FRD | HSA | TEMPDROP | SKEW-T | AVAPS

August 26, 2012

USAF 301 (1809A) CSV | HSA | TEMPDROP | SKEW-T | AVAPS
NOAA 49 (1909A)  FRD | HSA | TEMPDROP | SKEW-T | AVAPS
USAF 306 (2009A) CSV | HSA | TEMPDROP | SKEW-T | AVAPS
NOAA 49 (2209A)  FRD | HSA | TEMPDROP | SKEW-T | AVAPS
NOAA 42 (2309A)  FRD | HSA | TEMPDROP | SKEW-T | AVAPS
USAF 300 (2409A) CSV | HSA | TEMPDROP | SKEW-T | AVAPS

August 27, 2012

USAF 303 (2509A) CSV | HSA | TEMPDROP | SKEW-T | AVAPS
NOAA 42 (2609A)  FRD | HSA | TEMPDROP | SKEW-T | AVAPS
USAF 306 (2709A) CSV | HSA | TEMPDROP | SKEW-T | AVAPS
NOAA 42 (2809A)  FRD | HSA | TEMPDROP | SKEW-T | AVAPS

August 28, 2012

USAF 309 (2909A) CSV | HSA | TEMPDROP | SKEW-T | AVAPS
NOAA 42 (3009A)  FRD | HSA | TEMPDROP | SKEW-T | AVAPS
USAF 306 (3109A) CSV | HSA | TEMPDROP | SKEW-T | AVAPS
NOAA 42 (3309A)  FRD | HSA | TEMPDROP | SKEW-T | AVAPS
USAF 307 (3209A) CSV | HSA | TEMPDROP | SKEW-T | AVAPS

August 29, 2012

USAF 307 (3409A) CSV | HSA | TEMPDROP | SKEW-T | AVAPS

August 30, 2012

NOAA 42 (WA09A)  FRD | HSA | TEMPDROP | SKEW-T | AVAPS

Return to Isaac page.

Stay Connected