Date ( Publication )

2011-04-01T19:01:00

Purpose

Continuous O3 observations at the Nepal Climate Observatory - Pyramid (NCO-P, 5079ma.s.l., Nepal) with the aim of contributing to clarifying the role played by transport processes in determining the O3 levels and variability in one of the world’s most critical high-altitude regions, a systematic assessment was performed of the influence of SI on O3 concentrations recorded at this GAW-WMO station, which is considered representative of the Southern Himalayas remote troposphere. As O3 is a powerful greenhouse gases and a dangerous pollutant and due to the increasing emissions of anthropogenic O3 precursors over South Asia, such activity appears to be particularly important also considering that this region is strongly influenced by one of the so-called Atmospheric Brown Clouds, with severe implications on regional climate, air-quality and food security.

Status

Completed

Maintenance and update frequency

As needed

Keywords

• SHARE , Network , Station , High Altitude

Keywords

• WMO , GAWSIS , GAW

Keywords

• CEOP , ABC

Keywords ( Place )

• Nepal , Himalaya

Keywords ( Theme )

• ozone

Keywords ( Theme )

• air , research , pollution , ecosystems , landscape , natural areas , climate

Use limitation

No conditions apply

Access constraints

Copyright

Other constraints

Character set

UTF8

Topic category

• Climatology, meteorology, atmosphere
• Geoscientific information
• Environment

Supplemental Information

Reference system identifier

EPSG / WGS 1984 / 7.4

Topology level

Geometry only

Geometric object type

Point

Geometric object count

1

OnLine resource

SHARE Geonetwork portal  

SHARE Geonetwork portal

OnLine resource

http://www.rrcap.unep.org/abc/data/abc/ncop.html  

OnLine resource

Data/Quick Plot  

Data/Quick Plot

OnLine resource

gaw143_measurementguide.pdf  

WMO/GAW No. 143 "GLOBAL ATMOSPHERE WATCH MEASUREMENTS GUIDE"

OnLine resource

WDCGG site: parameter O3  

WDCGG site: parameter O3

OnLine resource

GAWSIS (Global Atmosphere Watch Station Information System) report about Nepal Climate Observatory - Pyramid  

GAWSIS (Global Atmosphere Watch Station Information System) report about Nepal Climate Observatory - Pyramid

OnLine resource

Official website of CEOP-HE (Coordinated Energy and water cycle Observation Project - High Elevation)  

Official website of CEOP-HE (Coordinated Energy and water cycle Observation Project - High Elevation)

Hierarchy level

Series

Statement

Continuous O3 observations at the Nepal Climate Observatory - Pyramid (NCO-P, 5079ma.s.l., Nepal) GAW-WMO station. The measurement method used is Light absorption analysis (UV): Air sampling observation. The air is sampled by a 1m long intake at 3.5 m height above the ground. The air intake is a inox-steel pipe. A Teflon sampling line (lenght 1.5m) connects the air intake with the analyser. Data are first stored on a 1-minute basis and finally validated as 30-minute average values. The sampling methodology was based on the GAW-WMO requirements (GAW, 1992). The ozone measurement is usually expressed as mixing ratio, which requires a measure of the temperature and pressure within the sample chamber. Ozone monitors usually include these measurements and do the mixing ratio calculation automatically. The data are normally submitted as 30 minutes averages and deposited into the WDCSO at NILU, usually once a month.

Description

Thermo Environmental - Model 49C (S/N 0525712879): March 2006 - May 2009

Description

Thermo Environmental - Model 49i: May 2009 - October 2009 (temporary back-up analyser)

Description

Thermo Environmental - Model 49C (S/N 0525712879): October 2009 - ongoing

gmd:MD_Metadata

File identifier

a48a8d09-7db3-4f5a-bf53-270aded137db   XML

Metadata language

eng

Character set

UTF8

Parent identifier

887ba3ee-45d0-4b4e-a79b-d88e6837f5b0

Hierarchy level

Series

Date stamp

2011-12-07T10:56:23

Metadata standard name

ISO 19115:2003/19139

Metadata standard version

1.0