Aerosol characterization and snow chemistry at Terra Nova Bay

Federal Geographic Data Committee (FGDC) Metadata:


Identification_Information:
Citation:
Citation_Information:
Originator: Unknown
Publication_Date: Unknown
Title: Aerosol characterization and snow chemistry at Terra Nova Bay
Description:
Abstract:
Antarctic aerosol was sampled at Terra Nova Bay using an inertial spectrometer at high flow rate. This instrument can sample aerosol and deposit particles on a membrane filter with size separation. The density of single particles and average density vs. aerodynamic diameter has been evaluated. Chemical composition of aerosol particles was determined by analyzing samples taken on millipore filters by scanning electron microscope and x-ray energy spectrometer. The results from this investigation are such that for particles with radius > 0.5 micron, frequency of sea-salt increases when aerodynamic diameter decreases. An opposite behavior is displayed by crustal elements. A chlorine loss in sea-salt particles has been observed. The suggested mechanism for this loss is: H2SO4 + 2NaCl = Na2SO4 + 2HCl. Condensation nuclei (CN) concentrations were measured at Terra Nova Bay with an alcohol-based particle counter. In January 1989 the mean value for CN was 490. The concentrations of eight major ions (Cl-, NO-3, SO42-, Na+, K+, Ca2+, Mg++, H+) were determined from fresh snow samples. These showed that precipitation is acidic, a fact depending on H2SO4, HCl and HNO3.
Purpose:
Not Available
Supplemental_Information:
REFERENCE: G. Santachiara, F. Prodi, F. Vivarelli, V. Vitale 1990 Aerosol characterization and snow chemistry at Terra Nova Bay Italian Research on Antarctic Atmosphere 27 Editrice Compositori-Bologna M. Colacino, G. Giovanelli and L. Stefanutti (Eds.)
Supplemental_Information:
REFERENCE: G. Santachiara, F. Prodi, M. Tagliazucca 1989 Characterization of aerosol at Terra Nova Bay, Antartica Italian Research on Antarctic Atmosphere 20 Editrice Compositori-Bologna. M. Colacino, G. Giovanelli and L. Stefanutti(Eds.)
Supplemental_Information:
REFERENCE: Santachiara G., Bonasoni P., Prodi F. 1992 Individual particle analysis of antarctic aerosols Italian Research on Antarctic Atmosphere 34 Editrice Compositori-Bologna M. Colacino, G. Giovanelli and L. Stefanutti (Eds.)
Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 19880101
Ending_Date: 19900228
Currentness_Reference:Unknown
Status:
Progress: Complete
Maintenance_and_Update_Frequency: As needed
Spatial_Domain:
Description_of_Geographic_Extent:
Bounding_Coordinates:
West_Bounding_Coordinate: 164.1138
East_Bounding_Coordinate: 164.1138
North_Bounding_Coordinate: -74.7119
South_Bounding_Coordinate: -74.7119
Keywords:
Theme:
Theme_Keyword_Thesaurus: GCMD SCIENCE PARAMETERS
Theme_Keyword_Thesaurus: GCMD INSTRUMENT
Theme_Keyword_Thesaurus: ANCILLARY KEYWORDS
Theme_Keyword_Thesaurus: ISO TOPIC CATEGORY
Theme_Keyword_Thesaurus: DATA SET LANGUAGE
Theme_Keyword: EARTH SCIENCE > ATMOSPHERE > AEROSOLS > AEROSOL PARTICLE PROPERTIES
Theme_Keyword: EARTH SCIENCE > ATMOSPHERE > AEROSOLS > AEROSOL PARTICLE PROPERTIES > AVERAGE DENSITY
Theme_Keyword: EARTH SCIENCE > ATMOSPHERE > AEROSOLS > AEROSOL PARTICLE PROPERTIES > AERODYNAMICS DIAMETER
Theme_Keyword: EARTH SCIENCE > ATMOSPHERE > AEROSOLS > AEROSOL PARTICLE PROPERTIES > CHEMICAL COMPOSITION
Theme_Keyword: EARTH SCIENCE > ATMOSPHERE > AEROSOLS > AEROSOL PARTICLE PROPERTIES > ION CONCENTRATION
Theme_Keyword: EARTH SCIENCE > ATMOSPHERE > AEROSOLS > CLOUD CONDENSATION NUCLEI
Theme_Keyword: EARTH SCIENCE > ATMOSPHERE > AEROSOLS > PARTICULATE MATTER
Theme_Keyword: SCANNING ELECTRON MICROSCOPES
Theme_Keyword: SPECTROMETERS
Theme_Keyword: (pacs) Atmosphere
Theme_Keyword: (pacs) Particles And Aerosols
Theme_Keyword: (pacs) Chemical Composition And Chemical Interactions
Theme_Keyword: (pacs) Aerosols
Theme_Keyword: CLIMATOLOGY/METEOROLOGY/ATMOSPHERE
Theme_Keyword: ENGLISH (WESTERN - ISO 8859-1 CHAR SET)
Place:
Place_Keyword_Thesaurus: GCMD
Place_Keyword: CONTINENT > ANTARCTICA > TERRA NOVA BAY
Place_Keyword: CONTINENT > ANTARCTICA > CAMPO ICARO
Place_Keyword: GEOGRAPHIC REGION > POLAR
Access_Constraints: Not Available
Use_Constraints:
Not Applicable
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Data_Quality_Information:
Attribute_Accuracy:
Attribute_Accuracy_Report:
Aerosol chemical analysis trough SEM and EDAX. Chemical analysis of ions in snow through ionic chromatograph. Condensation nuclei measurements by mean of TSI Condensation nucleus counter Model 3020
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: IT/CNR/ISAC > Institute of Atmospheric Sciences and Climate, Italian National Research Council, Italy
Contact_Person: FRANCO PRODI
Contact_Position: DATA CENTER CONTACT
Contact_Address:
Address_Type: Mailing and Physical Address
Address: via P. Gobetti 101
City: Bologna
Postal_Code: 40129
Country: Italy
Contact_Voice_Telephone: 39 051 6399618
Contact_Facsimile_Telephone: 39 051 6399658
Contact_Electronic_Mail_Address: f.prodi@isac.cnr.it
Resource_Description: Aerosol_char_and_snow_chem_TNB
Distribution_Liability:
Not Available
Standard_Order_Process:
Digital_Form:
Digital_Transfer_Information:
Format_Name: Not applicable
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Network_Resource_Name:
http://www.isac.cnr.it/
Access_Instructions:
DATA CENTER URL
Digital_Transfer_Option:
Fees: Not Applicable
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Metadata_Reference_Information:
Metadata_Date: 20050512
Metadata_Review_Date: 20110415
Metadata_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: GCMD User Support Office
Contact_Organization: NASA Global Change Master Directory
Contact_Address:
Address_Type: Mailing and Physical Address
Address: Not Available
City: Lanham
State_or_Province: MD
Postal_Code: 20706
Country: USA
Contact_Voice_Telephone: Not Available
Contact_Electronic_Mail_Address: gcmduso@gcmd.gsfc.nasa.gov
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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