b3af743d-c6cc-44c4-9206-ae93d83be70d eng 6c4be9d4-8ecd-4921-9071-753bb9c5dcc6 Ev-K2-CNR +39 035 3230511 +39 035 3230551 Via San Bernardino 145 Bergamo BG 24126 Italy metadata@evk2cnr.org http://www.evk2cnr.org 2011-11-07T15:10:22 ISO 19115:2003/19139 1.0 WGS 1984 cmn644n00.isac.as.cn.ch4.nl.hr2010 2011-04-05T03:00:00 Continuous Methane Concentration Measurements by using a customized Gas Chromotograph-FID (Agilent 6890N ). Following water vapor and carbon dioxide, methane (CH4) is the most abundant greenhouse gas in the troposphere. Concentrations of CH4 have more than doubled since pre-industrial times, with a current globally-averaged mixing ratio of 1750 ppbv. CH4 has a 100-year global Warming Potential (GWP) of 21 and an atmospheric life time of 12 years. Additional CH4 is actually much more effective as a greenhouse gas than additional carbon dioxide. Methane is also the most abundant reactive trace gas in the troposphere and its reactivity is important to both tropospheric and stratospheric chemistry. In fact, in troposphere, the oxidation of CH4 by hydroxyl radical (OH) leads to the formation of formaldehyde (CH2 O), carbon monoxide, and ozone if enough nitrogen oxides are present. Thus along with CO, CH4 is a key compunds in the definition of tropospheric OH levels. In stratosphere, CH4 affects the concentration of water vapor and ozone. It plays a key role in the conversion of reactive chlorine to less reactive HCl in the stratosphere. For understanding the factors influencing the tropospheric CH4 budget, continuous monitoring in background conditions (like at the ICO-OV) represents a fundamental activity. GAW CH4 measurements are used primarily to constrain the global CH4 budget and calculate its radiative forcing. Paolo Bonasoni National Research Council (CNR – Consiglio Nazionale delle Ricerche). Institute for Atmospheric Science and Climate (ISAC – Istituto di Scienze dell’Atmosfera e del Clima) +39 0516399590 +39 0516399652 via Gobetti, 101 Bologna BO 40129 Italy p.bonasoni@isac.cnr.it Paolo Cristofanelli National Research Council (CNR – Consiglio Nazionale delle Ricerche). Institute for Atmospheric Science and Climate (ISAC – Istituto di Scienze dell’Atmosfera e del Clima) +39 0516399597 +39 0516399652 via Gobetti, 101 Bologna BO 40129 Italy p.cristofanelli@isac.cnr.it https://geoportal.mountaingenius.org/geonetwork/srv/eng/resources.get?uuid=b3af743d-c6cc-44c4-9206-ae93d83be70d&fname=MntCimone_s.png thumbnail png https://geoportal.mountaingenius.org/geonetwork/srv/eng/resources.get?uuid=b3af743d-c6cc-44c4-9206-ae93d83be70d&fname=MntCimone.png large_thumbnail png SHARE Network Station High Altitude GAW No conditions apply climatologyMeteorologyAtmosphere 6.62397 18.5144 36.6492 47.0946 http://isac.cnr.it/cimone WWW:LINK-1.0-http--link Mt. Cimone website Official website of the Mount Cimone Station - Italian Climate Observatory "Ottavio Vittori" http://www.ceop.net/ WWW:LINK-1.0-http--link CEOP Website Official website of the CEOP - Coordinated Energy and Water Cycle Observation Project. http://www.ceop-he.org/ WWW:LINK-1.0-http--link CEOP-HE Website HE is a component of ‘regional focus’ within the Coordinated Energy and Water Cycle Observation Project (CEOP) of the Global Energy and Water Cycle Experiment (GEWEX), under the WCRP of WMO. https://geoportal.mountaingenius.org/geoserver/wms OGC:WMS-1.1.1-http-get-map gn:MountCimone Show position https://geoportal.mountaingenius.org/webapp/srv/en/resources.get?id=37059&fname=WMO_TD_1478_GAW185&access=private WWW:DOWNLOAD-1.0-http--download WMO_TD_1478_GAW185 GAW Report No. 185 Guidelines for the Measurement of Methane and Nitrous Oxide and their Quality Assurance http://gaw.kishou.go.jp/cgi-bin/wdcgg/download.cgi?index=CMN644N00-ISAC&param=201002010003&select=parameter&parac=observation#hourly WWW:LINK-1.0-http--related Databases CH4-Mt.Cimone Station-The World Data Centre for Greenhouse Gases (WDCGG) https://geoportal.mountaingenius.org/webapp/srv/en/resources.get?id=37059&fname=cmn644n00.isac.as.cn.ch4.nl.hr2010.dat.txt&access=private WWW:DOWNLOAD-1.0-http--download cmn644n00.isac.as.cn.ch4.nl.hr2010.dat.txt CH4 data TITLE: CH4 hourly mean data FILE NAME: cmn644n00.isac.as.cn.ch4.nl.hr2010.dat DATA FORMAT: Version 1.0 STATION NAME: Monte Cimone STATION CATEGORY: Global OBSERVATION CATEGORY: Air sampling observation at a stationary platform COUNTRY/TERRITORY: Italy CONTRIBUTOR: ISAC LATITUDE: 44.18 LONGITUDE: 10.7 ALTITUDE: 2165 NUMBER OF SAMPLING HEIGHTS: 1 SAMPLING HEIGHTS: 7 CONTACT POINT: jgor.arduini@uniurb.it PARAMETER: CH4 COVERING PERIOD: 2010-01-01 2010-12-31 TIME INTERVAL: hourly MEASUREMENT UNIT: ppbv MEASUREMENT METHOD: Gas Chromatography (FID) SAMPLING TYPE: continuous TIME ZONE: Local time UTC+1 MEASUREMENT SCALE: indirect link to NOAA 2004 scale No conditions apply 2011-03-31