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DOTSTAR ASTRA NCAR/EOL Dropsonde Data

Project:

ITOP

Summary

During ITOP the National Taiwan University DOTSTAR Astra jet released a total of 94 dropsondes in six flights over the Pacific Ocean near Taiwan during the months of August, September, and October 2010. This data set includes the high resolution (0.25 second winds and 0.5 second pressure, temperature and humidity) DOTSTAR dropsonde data set in the EOL columnar ASCII sounding format. This data set has undergone the NCAR/EOL quality control processing and includes the calculated vertical winds. See the readme for details on the QC process and data quality issues.

Data access

ORDER data to made available for download

Additional information

Identifier	DOI: https://doi.org/10.5065/D6HM56NP
Data Quality	final
Versions	1.0 (2011-09-09) 1.2 (2016-06-24): This dataset has been corrected for a dry bias, the filenames have been changed, and the directory changed. 2.0 (2016-06-24): This dataset has been corrected for a temperature dependent dry bias and the filenames have been changed. 3.0 (2016-07-27): Version 3.0 was corrected for a temperature dependent relative humidity and dewpoint dry bias. This is the most current version of the dataset. (Only the current version of the data is available to order. If you have questions about a prior version, please email us.)
Subscribe	Subscribe to receive email when new or updated data is available.
Related projects	ITOP: Impact of Typhoons on the Ocean in the Pacific
Spatial Type	point
Frequency	criteria
Language	English
Categories	Aircraft Upper Air
Platforms	DOTSTAR Astra Dropwindsondes
Instruments	AVAPS - Airborne Vertical Atmosphere Profiling Systems Dropsondes
GCMD Science Keywords	ATMOSPHERIC PRESSURE MEASUREMENTS BOUNDARY LAYER TEMPERATURE BOUNDARY LAYER WINDS DEW POINT TEMPERATURE GEOPOTENTIAL HEIGHT RELATIVE HUMIDITY U/V WIND COMPONENTS VERTICAL PROFILES WATER VAPOR PROFILES WIND DIRECTION WIND DIRECTION PROFILES WIND SPEED WIND VELOCITY/SPEED PROFILES Show 10 more... Expand keywords
Documentation	v3_20160930.readme.ITOP-2010.DOTSTAR.dropsondes.final.pdf [720 KiB]
Related links	info: ITOP 2010 Missions info: ITOP Data Policy homepage: ITOP Project Homepage

Temporal coverage

Begin datetime	2010-08-31 10:08:00
End datetime	2010-10-17 02:00:59

Spatial coverage

Map data from IBCSO, IBCAO, and Global Topography.

Maximum (North) Latitude: 29.9126, Minimum (South) Latitude: 17.01084
Minimum (West) Longitude: 116.36204, Maximum (East) Longitude: 130.96794

Primary point of contact information

EOL Data Support <datahelp@eol.ucar.edu>

Citation

NSF NCAR Earth Observing Laboratory. 2016. DOTSTAR ASTRA NCAR/EOL Dropsonde Data. Version 3.0. null. https://doi.org/10.5065/D6HM56NP. Accessed 19 Jan 2026.

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