Atmospheric Methyl Chloride
This data set provides monthly average concentrations of atmospheric methyl chloride taken from seven locations distributed among the polar, middle, and tropical latitudes of both hemispheres. The seven primary sites include Pt. Barrow, Alaska; Cape Kumukahi and Mauna Loa, Hawaii; Cape Matatula, Sam...
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ESS-DIVE: Deep Insight for Earth Science Data
2000
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dataone:ess-dive-23cf6e1b3c550e3-20180704T202956455 2024-06-03T18:46:23+00:00 Atmospheric Methyl Chloride M. A. K. Khalil R. A. Rasmussen BEGINDATE: 1980-08-15T00:00:00Z ENDDATE: 1996-12-15T00:00:00Z 2000-02-01T00:00:00Z https://search.dataone.org/view/ess-dive-23cf6e1b3c550e3-20180704T202956455 unknown ESS-DIVE: Deep Insight for Earth Science Data Atmospheric Methyl Chloride METHYL CHLORIDE chloroform (pptv) methycloride (pptv) date Dataset 2000 dataone:urn:node:ESS_DIVE 2024-06-03T18:11:16Z This data set provides monthly average concentrations of atmospheric methyl chloride taken from seven locations distributed among the polar, middle, and tropical latitudes of both hemispheres. The seven primary sites include Pt. Barrow, Alaska; Cape Kumukahi and Mauna Loa, Hawaii; Cape Matatula, Samoa; Cape Grim, Tasmania; and the South Pole and Palmer Station, Antarctica. Concentration measurements from these seven sites cover a period of 16 years, extending from 1981-1997. Monthly data taken between 1987-1989 from 20 short-term sites and vertical distribution measured at various latitudes are also provided. Air samples were collected from various sites in stainless steel flasks and methyl chloride concentrations were measured using an Electron Capture Gas Chromatograph. Concentrations are reported as mixing ratios in dry air. The concentrations are determined by using a set of calibration standards that are referenced against a primary standard which is also used to establish the absolute concentration. The primary standards were prepared by the investigators in the absence of an available standard from a centralized location. The data are useful in global methyl chloride budget analyses and for determining the atmospheric distribution and trends of methyl chloride and estimating the total emissions at various latitudes. For access to the data files, click this link to the CDIAC data transition website: http://cdiac.ess-dive.lbl.gov/epubs/other/methylchl.html Dataset Antarc* Antarctica Barrow South pole South pole Alaska ESS-DIVE: Deep Insight for Earth Science Data (via DataONE) Grim ENVELOPE(-64.486,-64.486,-65.379,-65.379) Palmer Station ENVELOPE(-64.050,-64.050,-64.770,-64.770) Palmer-Station ENVELOPE(-64.050,-64.050,-64.770,-64.770) South Pole |
institution |
Open Polar |
collection |
ESS-DIVE: Deep Insight for Earth Science Data (via DataONE) |
op_collection_id |
dataone:urn:node:ESS_DIVE |
language |
unknown |
topic |
Atmospheric Methyl Chloride METHYL CHLORIDE chloroform (pptv) methycloride (pptv) date |
spellingShingle |
Atmospheric Methyl Chloride METHYL CHLORIDE chloroform (pptv) methycloride (pptv) date M. A. K. Khalil R. A. Rasmussen Atmospheric Methyl Chloride |
topic_facet |
Atmospheric Methyl Chloride METHYL CHLORIDE chloroform (pptv) methycloride (pptv) date |
description |
This data set provides monthly average concentrations of atmospheric methyl chloride taken from seven locations distributed among the polar, middle, and tropical latitudes of both hemispheres. The seven primary sites include Pt. Barrow, Alaska; Cape Kumukahi and Mauna Loa, Hawaii; Cape Matatula, Samoa; Cape Grim, Tasmania; and the South Pole and Palmer Station, Antarctica. Concentration measurements from these seven sites cover a period of 16 years, extending from 1981-1997. Monthly data taken between 1987-1989 from 20 short-term sites and vertical distribution measured at various latitudes are also provided. Air samples were collected from various sites in stainless steel flasks and methyl chloride concentrations were measured using an Electron Capture Gas Chromatograph. Concentrations are reported as mixing ratios in dry air. The concentrations are determined by using a set of calibration standards that are referenced against a primary standard which is also used to establish the absolute concentration. The primary standards were prepared by the investigators in the absence of an available standard from a centralized location. The data are useful in global methyl chloride budget analyses and for determining the atmospheric distribution and trends of methyl chloride and estimating the total emissions at various latitudes. For access to the data files, click this link to the CDIAC data transition website: http://cdiac.ess-dive.lbl.gov/epubs/other/methylchl.html |
format |
Dataset |
author |
M. A. K. Khalil R. A. Rasmussen |
author_facet |
M. A. K. Khalil R. A. Rasmussen |
author_sort |
M. A. K. Khalil |
title |
Atmospheric Methyl Chloride |
title_short |
Atmospheric Methyl Chloride |
title_full |
Atmospheric Methyl Chloride |
title_fullStr |
Atmospheric Methyl Chloride |
title_full_unstemmed |
Atmospheric Methyl Chloride |
title_sort |
atmospheric methyl chloride |
publisher |
ESS-DIVE: Deep Insight for Earth Science Data |
publishDate |
2000 |
url |
https://search.dataone.org/view/ess-dive-23cf6e1b3c550e3-20180704T202956455 |
op_coverage |
BEGINDATE: 1980-08-15T00:00:00Z ENDDATE: 1996-12-15T00:00:00Z |
long_lat |
ENVELOPE(-64.486,-64.486,-65.379,-65.379) ENVELOPE(-64.050,-64.050,-64.770,-64.770) ENVELOPE(-64.050,-64.050,-64.770,-64.770) |
geographic |
Grim Palmer Station Palmer-Station South Pole |
geographic_facet |
Grim Palmer Station Palmer-Station South Pole |
genre |
Antarc* Antarctica Barrow South pole South pole Alaska |
genre_facet |
Antarc* Antarctica Barrow South pole South pole Alaska |
_version_ |
1800870437483184128 |