Rotational temperature studies of the hydroxyl airglow layer above Davis, Antarctica.

Federal Geographic Data Committee (FGDC) Metadata:


Identification_Information:
Citation:
Citation_Information:
Originator: Burns, G. and French, J.
Publication_Date: 20130819
Title: Rotational temperature studies of the hydroxyl airglow layer above Davis, Antarctica.
Edition:
Geospatial_Data_Presentation_Form:
Series_Information:
Series_Name: CAASM Metadata
Issue_Identification:
Publication_Information:
Publication_Place:
Publisher: Australian Antarctic Data Centre
Other_Citation_Details:
Online_Linkage: https://data.aad.gov.au/aadc/metadata/metadata_redirect.cfm?md=/AMD/AU/Davis_OH_airglow
Description:
Abstract:
These OH rotational temperature data are derived from spectra collected with a Czerny-Turner scanning grating spectrometer operating at Davis station (69S, 78E), Antarctica (see Greet et al., 1998; French et al., 2000; Burns et al., 2002). Hydroxyl (6-2) band rotational temperatures are derived using Langhoff et al (1986) transition probabilities. See French et al. (2000) for why we prefer these values. The 1990 data are collected with the optical axis aligned 30-degrees above the horizon in a direction 130E from Davis. An order separating filter was not used in 1990. Details of the operation of the instrumentation in 1990 are included in Greet et al., (1998). The 1990, 1994, 1995 and 1996 data are derived from OH(6-2) spectra collected as 5 consecutive scans accumulated in the order of 40 mins to 1 hour (see Burns et al., 2002). The times listed for the 1990, 1994, 1995 and 1996 temperatures are calculated from the start time and end time of the accumulated spectrum, interpolated to the time of the P1(2) peak. Greater accuracy than this is not justified given the scanning nature of the instrument and the long acquire times. From 1997, temperatures are determined from piece-wise scans collected in ~7.5 minutes (see Burns et al., 2002). From 1997, the time for each temperature is between two consecutive spectra. The line intensities are linearly interpolated to this time. We derive temperatures as often as possible (moon-up, minor auroral contamination, all cloud conditions). Auroral, cloud and moon-light contaminations are handled and investigated as described in Burns et al., (2002). We have provided UT date and time, weighted temperatures, weighted standard error (less than 15K), weighted counting error (less than 10K) and a cloud code. The weighted temperature, weighted counting error and weighted standard deviation are explained in Greet et al. (1998). The cloud code is: 0 clear skies 1 thin high cirrus or haze 2 patchy cloud 3 overcast 4 snow 5 unknown Some discussion of the cloud observations is contained in Burns et al. (2002) and Greet et al. (1998). This work was completed as part of ASAC project 701 (ASAC 701). From 2013 onwards, the work falls under AAS project 4157. The fields in this dataset are: Date (UT) Time (UT) Temperature (K) Cloud The download file contains the raw data collected by the SPEX instrument, as well as the calculated temperature/hydroxyl values. The download file contains data only as far as August 2013. For data beyond this point, contact the AADC for access.
Purpose:
Not Available
Supplemental_Information:
REFERENCE: Burns, G.B., French, W.J.R., Greet, F.A., Phillips, F.A., Williams, P.F.B., Finlayson, K. and Klich, G. 2002 Seasonal variations and inter-year trends in 7 years of hydroxyl airglow rotational temperatures at Davis station (69S, 78E), Antarctica. Journal of Atmospheric and Solar-Terrestrial Physics 64 1167-1174
Supplemental_Information:
REFERENCE: French, W.J.R., Burns, G.B., Finlayson, K., Greet, P.A., Lowe, R.P. and Williams, P.F.B. 2000 Hydroxyl (6-2) airglow emission intensity ratios for rotational temperature determination. Annales Geophysicae 18 1293-1303
Supplemental_Information:
REFERENCE: Greet, P.A., French, W.J.R., Burns, G.B., Williams, P.F.B., Lowe, R.P. and Finlayson, K. 1998 OH(6-2) spectra and rotational temperature measurements at Davis, Antarctica. Annales Geophysicae 16 77-89
Supplemental_Information:
REFERENCE: Langhoff, S.R., Werner, H-J, Rosmus, P, 1986 Theoretical transition probabilities for the OH meinel system. Journal of Molecular Spectroscopy 118 507-529
Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 19900324
Ending_Date: Unknown
Currentness_Reference:Unknown
Status:
Progress: In Work
Maintenance_and_Update_Frequency: As needed
Spatial_Domain:
Description_of_Geographic_Extent:
Bounding_Coordinates:
West_Bounding_Coordinate: 77.87295
East_Bounding_Coordinate: 78.07102
North_Bounding_Coordinate: -68.53991
South_Bounding_Coordinate: -68.61233
Spatial_Domain:
Description_of_Geographic_Extent:
Bounding_Coordinates:
West_Bounding_Coordinate: 80.49194
East_Bounding_Coordinate: 81.402756
North_Bounding_Coordinate: -69.28406
South_Bounding_Coordinate: -69.57626
Keywords:
Theme:
Theme_Keyword_Thesaurus: GCMD SCIENCE PARAMETERS
Theme_Keyword_Thesaurus: GCMD PLATFORM
Theme_Keyword_Thesaurus: GCMD INSTRUMENT
Theme_Keyword_Thesaurus: PROJECT
Theme_Keyword_Thesaurus: ANCILLARY KEYWORDS
Theme_Keyword_Thesaurus: ISO TOPIC CATEGORY
Theme_Keyword_Thesaurus: DATA SET LANGUAGE
Theme_Keyword: EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC PRESSURE > GRAVITY WAVE
Theme_Keyword: EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC TEMPERATURE > AIR TEMPERATURE
Theme_Keyword: EARTH SCIENCE > ATMOSPHERE > CLOUDS
Theme_Keyword: EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC PRESSURE > PLANETARY/ROSSBY WAVES
Theme_Keyword: EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC CHEMISTRY > HYDROGEN COMPOUNDS > HYDROXYL
Theme_Keyword: GROUND STATIONS
Theme_Keyword: SPECTROMETERS
Theme_Keyword: ESIP > EARTH SCIENCE INFORMATION PARTNERS PROGRAM
Theme_Keyword: Antarctica
Theme_Keyword: Atmospheric Temperature
Theme_Keyword: Atmospheric Tide
Theme_Keyword: Cloud
Theme_Keyword: Date
Theme_Keyword: Davis
Theme_Keyword: Gravity Wave
Theme_Keyword: Hydroxyl Airglow
Theme_Keyword: Hydroxyl Rotational Temperature
Theme_Keyword: Mesosphere
Theme_Keyword: Oh(6-2)
Theme_Keyword: Planetary Wave
Theme_Keyword: Temperature
Theme_Keyword: Time
Theme_Keyword: CLIMATOLOGY/METEOROLOGY/ATMOSPHERE
Theme_Keyword: ENGLISH
Place:
Place_Keyword_Thesaurus: GCMD
Place_Keyword: CONTINENT > ANTARCTICA > DAVIS
Place_Keyword: GEOGRAPHIC REGION > POLAR
Place_Keyword: VERTICAL LOCATION > MESOSPHERE
Temporal:
Temporal_Keyword_Thesaurus: GCMD
Temporal_Keyword: 40 Min, 7 Min
Access_Constraints: Some of the dataset is available for download from the url given below (up until August 2013). The Czerny-Turner dataset is available on the AAD fileshares at \\aad.gov.au\files\ATMOS\Data\Davis_SPEX - owing to the size and constantly updating nature of the data, they will not be placed on a publicly accessible download area. The FTS dataset is available on the AAD fileshares at \\aad.gov.au\files\Atmos\Data\Davis_FTS\ - owing to the size and constantly updating nature of the data, they will not be placed on a publicly accessible download area. Contact the AADC to gain access to these data.
Use_Constraints:
This data set conforms to the PICCCBY Attribution License (http://creativecommons.org/licenses/by/3.0/). Please follow instructions listed in the citation reference provided at http://data.aad.gov.au/aadc/metadata/citation.cfm?entry_id=Davis_OH_airglow when using these data.
Point_of_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: JOHN FRENCH
Contact_Position: INVESTIGATOR
Contact_Position: TECHNICAL CONTACT
Contact_Address:
Address_Type: Mailing and Physical Address
Address: Australian Antarctic Division
Address: 203 Channel Highway
City: Kingston
State_or_Province: Tasmania
Postal_Code: 7050
Country: Australia
Contact_Voice_Telephone: +61 3 6232 3480
Contact_Facsimile_Telephone: +61 3 6232 3496
Contact_Electronic_Mail_Address: John.French@aad.gov.au
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Data_Quality_Information:
Attribute_Accuracy:
Attribute_Accuracy_Report:
SOME SPECIFICS ABOUT DATA GAPS 1995. Between 27th May (DOY 147) and 2nd August (DOY 214) the instrument function was degraded. Temperatures from this interval have not been provided. 1996. Betwen 28th June (DOY 179) and 20th July (DOY 201) extensive calibrations were undertaken on the instrument and no spectra were collected. 1996. From 26th September (DOY 269) to 2nd November (DOY 306) piece-wise scans but incorporating only P1(2) and P1(4) lines were undertaken. Temperatures from this interval of experimental testing are not included with these data. 1997. Between 1st July (DOY 182) to 17th August (DOY 229) the slit width was reduced from its normal 250 microns to 100 microns for a specific research program. Temperatures derived from this interval of reduced signal collection are not included. 2002. These nightly temperatures have a large uncertainty compared to the values derived for other years. The measured spectral response varied excessively during 2002, perhaps in part related to the variable performance of the PMT cooler. We presently estimate that some nightly temperatures may be in error by up to 3 K due to uncertainty in the applied spectral response correction. Typically the error associated with spectral response uncertainty (since 1998) is less than 0.5K. 2003. A mechanical failure of the grating stepper mechanism resulted in loss of data between days 180 and 189 2004. A hard disk drive failure occured on day 110. Data on the failed drive could not be recovered (heads had ground into the disk platter substrate). Data were lost between days 097 and 113.Disruption of the slit parallelism occured on day 145 and was not identified and corrected until day 217. This interval consequently has a degraded instrument function (FWHM 2.075 angstroms compared to ~1.6 angstroms normally) 2005. A shutter on the entrance system was left closed for the interval day 106 to day 117. New (Labview) control software was started on day 286. 2006. The entrance mirror was misaligned after automation between days 60 and 66 Communications interface failed between days 156 and 159 2007. Control computer software failure occurred for a short interval Day 225-226 2008. No data D061 or D162 due to power failures. Other gaps have possibly occurred since these dates. Check the data for more information.
Logical_Consistency_Report:
Not Available
Completeness_Report:
Not Available
Lineage:
Process_Step:
Process_Description:
Not Available
Process_Date: Unknown
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Spatial_Reference_Information:
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Distribution_Information:
Distributor:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: AU/AADC > Australian Antarctic Data Centre, Australia
Contact_Person: DATA OFFICER AADC
Contact_Position: DATA CENTER CONTACT
Contact_Address:
Address_Type: Mailing and Physical Address
Address: Australian Antarctic Division
Address: 203 Channel Highway
City: Kingston
State_or_Province: Tasmania
Postal_Code: 7050
Country: Australia
Contact_Voice_Telephone: +61 3 6232 3244
Contact_Facsimile_Telephone: +61 3 6232 3351
Contact_Electronic_Mail_Address: metadata@aad.gov.au
Distributor:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: UCAR/NCAR/HAO/CEDAR > Coupling, Energetics and Dynamics of Atmospheric Regions, High Altitude Observatory, National Center for Atmospheric Research, UCAR
Contact_Person: DATABASE MANAGER
Contact_Position: DATA CENTER CONTACT
Contact_Address:
Address_Type: Mailing and Physical Address
Contact_Electronic_Mail_Address: cedar_db@hao.ucar.edu
Resource_Description: Davis_OH_airglow
Distribution_Liability:
Not Available
Standard_Order_Process:
Digital_Form:
Digital_Transfer_Information:
Format_Name: excel, pdf, text
Transfer_Size: 3.75 GB
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Network_Resource_Name:
http://data.aad.gov.au
Access_Instructions:
DATA CENTER URL
Online_Option:
Computer_Contact_Information:
Network_Address:
Network_Resource_Name:
http://cedarweb.hao.ucar.edu/
Access_Instructions:
DATA CENTER URL
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Network_Resource_Name:
http://data.aad.gov.au/aadc/portal/download_file.c...
Access_Instructions:
Download point for the data - excel spreadsheets and pdf file - data up until August 2013
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Network_Resource_Name:
https://secure3.aad.gov.au/proms/public/projects/r...
Access_Instructions:
Public information for ASAC project 701
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Network_Resource_Name:
https://secure3.aad.gov.au/proms/public/projects/r...
Access_Instructions:
Public information for ASAC project 4157
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Network_Resource_Name:
http://data.aad.gov.au/aadc/metadata/citation.cfm?...
Access_Instructions:
Citation reference for this metadata record and dataset
Fees: Free
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Metadata_Reference_Information:
Metadata_Date: 20020723
Metadata_Review_Date: 20140911
Metadata_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: GARY BURNS
Contact_Position: INVESTIGATOR
Contact_Position: DIF AUTHOR
Contact_Address:
Address_Type: Mailing and Physical Address
Address: Australian Antarctic Division
Address: 203 Channel Highway
City: Kingston
State_or_Province: Tasmania
Postal_Code: 7050
Country: Australia
Contact_Voice_Telephone: +61 3 6232 3381
Contact_Facsimile_Telephone: +61 3 6232 3496
Contact_Electronic_Mail_Address: gary.burns@aad.gov.au
Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata
Metadata_Standard_Version: FGDC-STD-001-1998
Metadata_Time_Convention: local time
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