Aerosol characterization and snow chemistry at Terra Nova Bay
Federal Geographic Data Committee (FGDC) Metadata:
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Identification_Information:
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Citation:
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Citation_Information:
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Originator: Unknown
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Publication_Date: Unknown
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Title: Aerosol characterization and snow chemistry at Terra Nova Bay
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Description:
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Abstract:
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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.
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Purpose:
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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.)
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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.)
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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.)
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Time_Period_of_Content:
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Time_Period_Information:
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Range_of_Dates/Times:
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Beginning_Date: 19880101
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Ending_Date: 19900228
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Currentness_Reference:Unknown
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Status:
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Progress: Complete
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Maintenance_and_Update_Frequency: As needed
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Spatial_Domain:
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Description_of_Geographic_Extent:
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Bounding_Coordinates:
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West_Bounding_Coordinate: 164.1138
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East_Bounding_Coordinate: 164.1138
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North_Bounding_Coordinate: -74.7119
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South_Bounding_Coordinate: -74.7119
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Keywords:
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Theme:
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Theme_Keyword_Thesaurus: GCMD SCIENCE PARAMETERS
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Theme_Keyword_Thesaurus: GCMD INSTRUMENT
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Theme_Keyword_Thesaurus: ANCILLARY KEYWORDS
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Theme_Keyword_Thesaurus: ISO TOPIC CATEGORY
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Theme_Keyword_Thesaurus: DATA SET LANGUAGE
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Theme_Keyword: EARTH SCIENCE > ATMOSPHERE > AEROSOLS > AEROSOL PARTICLE PROPERTIES
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Theme_Keyword: EARTH SCIENCE > ATMOSPHERE > AEROSOLS > AEROSOL PARTICLE PROPERTIES > AVERAGE DENSITY
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Theme_Keyword: EARTH SCIENCE > ATMOSPHERE > AEROSOLS > AEROSOL PARTICLE PROPERTIES > AERODYNAMICS DIAMETER
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Theme_Keyword: EARTH SCIENCE > ATMOSPHERE > AEROSOLS > AEROSOL PARTICLE PROPERTIES > CHEMICAL COMPOSITION
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Theme_Keyword: EARTH SCIENCE > ATMOSPHERE > AEROSOLS > AEROSOL PARTICLE PROPERTIES > ION CONCENTRATION
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Theme_Keyword: EARTH SCIENCE > ATMOSPHERE > AEROSOLS > CLOUD CONDENSATION NUCLEI
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Theme_Keyword: EARTH SCIENCE > ATMOSPHERE > AEROSOLS > PARTICULATE MATTER
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Theme_Keyword: SCANNING ELECTRON MICROSCOPES
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Theme_Keyword: SPECTROMETERS
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Theme_Keyword: (pacs) Atmosphere
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Theme_Keyword: (pacs) Particles And Aerosols
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Theme_Keyword: (pacs) Chemical Composition And Chemical Interactions
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Theme_Keyword: (pacs) Aerosols
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Theme_Keyword: CLIMATOLOGY/METEOROLOGY/ATMOSPHERE
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Theme_Keyword: ENGLISH (WESTERN - ISO 8859-1 CHAR SET)
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Place:
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Place_Keyword_Thesaurus: GCMD
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Place_Keyword: CONTINENT > ANTARCTICA > TERRA NOVA BAY
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Place_Keyword: CONTINENT > ANTARCTICA > CAMPO ICARO
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Place_Keyword: GEOGRAPHIC REGION > POLAR
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Access_Constraints: Not Available
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Use_Constraints:
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Not Applicable
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Data_Quality_Information:
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Attribute_Accuracy:
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Attribute_Accuracy_Report:
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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
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Logical_Consistency_Report:
- Not Available
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Completeness_Report:
- Not Available
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Lineage:
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Process_Step:
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Process_Description:
- Not Available
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Process_Date: Unknown
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Spatial_Reference_Information:
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Distribution_Information:
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Distributor:
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Contact_Information:
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Contact_Organization_Primary:
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Contact_Organization: IT/CNR/ISAC > Institute of Atmospheric Sciences and Climate, Italian National Research Council, Italy
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Contact_Person: FRANCO PRODI
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Contact_Position: DATA CENTER CONTACT
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Contact_Address:
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Address_Type: Mailing and Physical Address
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Address: via P. Gobetti 101
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City: Bologna
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Postal_Code: 40129
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Country: Italy
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Contact_Voice_Telephone: 39 051 6399618
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Contact_Facsimile_Telephone: 39 051 6399658
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Contact_Electronic_Mail_Address: f.prodi@isac.cnr.it
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Resource_Description: Aerosol_char_and_snow_chem_TNB
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Distribution_Liability:
- Not Available
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Standard_Order_Process:
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Digital_Form:
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Digital_Transfer_Information:
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Format_Name: Not applicable
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Digital_Transfer_Option:
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Online_Option:
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Computer_Contact_Information:
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Network_Address:
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Network_Resource_Name:
- http://www.isac.cnr.it/
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Access_Instructions:
- DATA CENTER URL
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Digital_Transfer_Option:
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Fees: Not Applicable
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Metadata_Reference_Information:
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Metadata_Date: 20050512
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Metadata_Review_Date: 20110415
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Metadata_Contact:
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Contact_Information:
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Contact_Person_Primary:
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Contact_Person: GCMD User Support Office
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Contact_Organization: NASA Global Change Master Directory
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Contact_Address:
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Address_Type: Mailing and Physical Address
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Address: Not Available
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City: Lanham
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State_or_Province: MD
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Postal_Code: 20706
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Country: USA
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Contact_Voice_Telephone: Not Available
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Contact_Electronic_Mail_Address: gcmduso@gcmd.gsfc.nasa.gov
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Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata
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Metadata_Standard_Version: FGDC-STD-001-1998
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Metadata_Time_Convention: local time
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