Date ( Publication )

2011-04-01T19:01:00

Purpose

Optical particle counter (particle counting with the method of orthogonal light scattering) are widely used to measure particle size and numbers of ambient aerosols. This new instrument is continuous measuring the total amount of particles in the ambient air. Then the detected particles are classified according to their size in 31 different size channels.

Status

On going

Maintenance and update frequency

As needed

Keywords

• SHARE , Network , Station , High Altitude

Keywords

• WMO , GAW , GAWSIS

Keywords

• CEOP

Keywords ( Place )

• Nepal , Himalaya

Keywords ( Theme )

• aerosol , Aerosol number concentration

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
• Environment
• Geoscientific information

Supplemental Information

Reference system identifier

EPSG / WGS 84 (EPSG:4326) / 7.4

Topology level

Geometry only

Geometric object type

Point

Geometric object count

1

OnLine resource

SHARE Geonetwork portal  

SHARE Geonetwork portal

OnLine resource

ISAC EVK2-Nepal Climate Observatory - Pyramid website  

ISAC EVK2-Nepal Climate Observatory - Pyramid website

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)

OnLine resource

Spectrometr190.pdf  

Product Information OPC GRIMM190

Hierarchy level

Series

Other

data: aerosol number concentration

Statement

The OPC - GRIMM 190 is a Continuous Ambient Aerosol Spectrometer able to measure simultaneously the number and size distribution of ambient aerosol in 31 channels, ranging from 0.25 to 30µm. An Optical particle counter (particle counting with the method of orthogonal light scattering) are widely used to measure particle size and numbers of ambient aerosols. This instrument continuous measuring the total amount of particles in the ambient air. Then the detected particles are classified according to their size in 31 different size channels. The result is a real time aerosol spectrum of the sampled air. With a PC/Windows based software the measured size distribution can be displayed on a monitor. For a better visualisation of the data, a selection of up to 16 of the 31 channels can be displayed at the same time. The monitoring activity in the shelter-laboratory is completely realized using renewable energy from 112 photovoltaic panels and this permit to minimize the possible influence of local emissions and guarantee air mass sampling in clean conditions. The energy produced by photovoltaic panels is stocked by 120 electric storage cells, lodged on the shelf in the behind part of the shelter. The inverters will guarantee the current stabilisation. A dedicated satellite connection permits near-real-time data transfer, as well as the remote control of instrumentation. Computers in the laboratory are connected with the server located in the Pyramid International Laboratory, using a coupled optical fibre and a wireless connection. The server Himalaya server is linked to another server located at ISAC-CNR Institute in Bologna (Italy). Quality control for instrumentation and data reduction will be performed according to EUSAAR/GAW/AGAGE procedures for aerosols and gases.

gmd:MD_Metadata

File identifier

b5937a39-1917-4034-bd65-a0a88fae6c89   XML

Metadata language

eng

Character set

UTF8

Parent identifier

d83f95af-91e7-443e-974f-c7e1f0be700d

Hierarchy level

Series

Date stamp

2011-09-26T10:51:03

Metadata standard name

ISO 19115:2003/19139

Metadata standard version

1.0