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Observations of the circulation of winds in the Wright Valley using an acoustic sounder, pilot balloons and airsondes

Listed in NASA Earthdata CMR

Previous meteorological measurements in the Dry Valley region of South Victoria Land have shown that during summer, there is a well developed diurnal local circulation driven by solar heating/convective effects.

Description

This results in winds which alternate between westerlies and easterlies in the Wright Valley. The aim of this study was to investigate the summer wind circulation at Lake Vanda in the Wright Valley using both observational and modelling approaches.

This work was carried out with a view to classifying the wind system on the basis of the forcing mechanisms and to gain an understanding of the processes producing the system. This project involved making detailed observations of the circulation using an acoustic sounder, pilot balloons and airsondes. A surface based observational network including anemographs, temperature, radiation and humidity sensors was installed in the Wright Valley in late October and monitoring was continued until late January.

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During the study, four intensive case studies of 24 to 36 hours in length involving regular (approximately 2 hourly) pilot balloon and airsonde soundings and in excess of 45 soundings were carried out. These data will later be used to initialise and validate a simulation of the circulation using a three dimensional mesoscale numerical model. The results will also be used to investigate the consequences for the wind flow in the region of climate change in Antarctica.

Links

Get the data

  • cliflo.niwa.co.nz ↗

    The climate is held in the NIWA's National Climate Database through the web interface CliFlo. Vanda station Climate Database identifier is: 6222

    download · from NASA CMR

Catalogue records · 2

Topics

Inferred from text
Simulation 75%
Provenance · 1 source records, 12 field assertions
SourceKeyLast seenRaw
NASA Earthdata CMRC1214594027-SCIOPS15 d agoJSON v1
FieldAssertionExtractorEvidence
access_levelsource · NASA CMRconnector:nasa_cmr@1.0.0
concepts[instrument].gcmd_instrument:acoustic-sounderssource · NASA CMRconnector:nasa_cmr@1.0.0
concepts[measured_variable].gcmd:earth-science/atmosphere/atmospheric-winds/wind-dynamics/vertical-wind-velocity-speedsource · NASA CMRconnector:nasa_cmr@1.0.0
concepts[method].local:method:simulationenrichment · NASA CMRkeyword-concept-rules@1.0.0title+description (75%)
concepts[platform].gcmd_platform:field-investigationsource · NASA CMRconnector:nasa_cmr@1.0.0
concepts[platform].gcmd_platform:field-surveyssource · NASA CMRconnector:nasa_cmr@1.0.0
concepts[platform].gcmd_platform:not-providedsource · NASA CMRconnector:nasa_cmr@1.0.0
descriptionsource · NASA CMRconnector:nasa_cmr@1.0.0/umm/Abstract
spatialsource · NASA CMRconnector:nasa_cmr@1.0.0/umm/SpatialExtent
temporalsource · NASA CMRconnector:nasa_cmr@1.0.0/umm/TemporalExtents
titlesource · NASA CMRconnector:nasa_cmr@1.0.0/umm/EntryTitle
version_labelsource · NASA CMRconnector:nasa_cmr@1.0.0