LAP infrastructure

LAP Infrastructure

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At the Laboratory of Atmospheric Physics (LAP), systematic measurements of solar radiation and atmospheric constituents are routinely performed using both active and passive remote sensing techniques. The first measurements of total ozone by UV spectroscopy began in 1982, and since then LAP has developed and/or procured scientific equipment of the highest standards, as they are defined by International Organizations and Networks. The LAP monitoring station and its routine atmospheric observations are integrated into the Global Atmosphere Watch of the World Meteorological Organization (GAW/WMO), the Network for the Detection of Atmospheric Composition Change (NDACC), the European Brewer Spectrophotometer Measurement Network (EUBREWNET) and the European Aerosol, Clouds and Trace Gases Research Infrastructure (ACTRIS), to which LAP is participating as an official national infrastructure station, part of the PANACEA network (https://panacea-ri.gr/).
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At the Laboratory of Atmospheric Physics (LAP), systematic measurements of solar radiation and atmospheric constituents are routinely performed using both active and passive remote sensing techniques. The first measurements of total ozone by UV spectroscopy began in 1982, and since then LAP has developed and/or procured scientific equipment of the highest standards, as they are defined by International Organizations and Networks. The LAP monitoring station and its routine atmospheric observations are integrated into the Global Atmosphere Watch of the World Meteorological Organization (GAW/WMO), the Network for the Detection of Atmospheric Composition Change (NDACC), the European Brewer Spectrophotometer Measurement Network (EUBREWNET) and the European Aerosol, Clouds and Trace Gases Research Infrastructure (ACTRIS), to which LAP is participating as an official national infrastructure station, part of the PANACEA network (https://panacea-ri.gr/).

Technical Characteristics
Multiwavelength Raman Lidar with depolarization capabilities
Measurement height range: 0.5km to 15km
Laser source: 0.5 nm
Operational temperature range: Pulsed Nd-YAG laserNewtonian telescope, custom designed by Raymetrics SA
Type of measurements
Aerosol backscatter profiles at 355, 532 and 1064nm
Aerosol extinction profiles at 355 ad 532nm
Particle Linear Depolarization ratio at 532nm
Operation time range
2001-today, member of EARLINET/ACTRIS
Data are available at https://data.earlinet.org

 

Technical Characteristics
Wavelength range: 290 nm to 330 nm
Resolution: 0.5 nm
Operational temperature range: -20 ºC to +50 °C
http://kippzonen-brewer.com/about-brewer/technical-specs/
Type of measurements
Spectral measurements of UV solar irradiance and Total Ozone Column measurements
Operation time range
1982 – today

Technical Characteristics
Wavelength range: 286.5 nm to 366 nm
Resolution: 0.5 nm
Operational temperature range: -20 ºC to +50 °C
http://kippzonen-brewer.com/about-brewer/technical-specs/
Type of measurements
Spectral measurements of UV solar irradiance and Total Ozone Column measurements
Operation time range
1992 – today

Technical Characteristics
Wavelength range: 280 – 539 nm
Spectral resolution: ~0.55 nm
Entrance slit width: 50 μm
Signal to noise ratio of a single measurement: 450:1
Tracker pointing resolution: 0.125°
Field of view:
Type of measurements
Zenith-Sky, Off-Axis and Direct-Sun measurements
Operation time range
2014 – today

Technical Characteristics
Enhanced Sun Tracker
Dual axis, high precision tracker system
Full hemispherical pointing capability
Weatherized for durable outdoor operation
Pointing resolution: 0.01°
UV/Vis Spectrometer
Wavelength range: 280 – 530 nm
Spectral resolution: 0.6 nm
Entrance slit width: 50 μm
Vis/NIR Spectrometer
Wavelength range: 400 – 900 nm
Spectral resolution: 1.1 nm
Entrance slit width: 50 μm
Type of measurements
Zenith-Sky, Off-Axis, Direct-Sun and Direct-Moon measurements
Operation time range
2022 – today

Joined Pandonia Network at Sept. 2022

Technical Characteristics
CIMEL CE318-T – Sun Sky Lunar Multispectral Photometer
Type of measurements
Day-time (SUN/SKY) & night-time (MOON: from 1st to last quarter) measurements: AOD, volume size distribution, refractive index, water vapor
Operation time range
Since 2003, member of AERONET, data are available at https://data.earlinet.org

Technical Characteristics
Filters of (~10 nm FWHM) centred at 302, 312, 320, 340, 380 nm.
PAR channell (400-700 nm)
Type of measurements
Solar Irradiance at five narrowband spectral regions and for Photosynthetic Active Radiation (PAR).
Operation time range
Since 2005

Technical Characteristics
YES-UVB-1 broadband radiometer
Spectral range 290-400 nm with CIE-weighting
Temperature stabilised at 45 °CTUVR EPPLEY and EKO UV-A radiometers
Spectral range 315-400 nmBoth instruments record 1 min averages
Type of measurements
Erythemal (CIE-weighted) solar Irradiance
UV-A irradiance
Operation time range
Since 1991
Since 1993 (TUVR EPPLEY), since 1998 (EKO UV-A)

Technical Characteristics
CM-21 Kipp & Zonen pyranometer
spectral range 290-4000 nm
One unit is mounted horizontally and one is tilted at 40.5° wrt to horizontal plane and phasing South
Both instruments record 1 min averages
Type of measurements
Global horizontal irradiance
Global tilted irradiance
Operation time range
Horizontal: since 1993
Tilted: since 2011

Technical Characteristics
CHP1 Kipp & Zonen PyrheliometerSpectral
range 300 – 4000 nm
Field of view 5°
Temperature recorded
Sun tracking with resolution of 0.125°
Type of measurements
Direct Global Irradiance, with continuous sun tracking

Technical Characteristics
Type of Measurements
Time period of operation

Technical Characteristics
GRIMM spectrometer. OPCs have a very basic design principle: particles are sampled into the instrument and traverse perpendicular to a laser beam. A detector set off-axis from the laser and particle beam then records scattering intensity signals from individual particles.
Type of measurements
PM1, PM2.5, PM10, size-resolved number concentration per cubic centimetre of particles in the size range of 0.3 to 20 microns (optical)
Operation time range
Data available on request during campaigns since 2020

Technical Characteristics
Dark room equipped with an instrument and calibration-lamp holder, a laser beam and lamp current/voltage controlling system through a prototype resistor and a purpose-built software.
Type of measurements
Spectral absolute calibration of the Brewer spectrophotometers and other instruments measuring UV irradiance
Operation time range
1993 -today

Technical Characteristics
The characterisation unit consists of:

  •  Xe arc lamp1000 Watt, ORIEL (6269), 200-900nm
  • Double monochromator, 1680 SpectraMate (Jobin-Yvon), for almost monochromatic beam production
  • SIlicon photodiode detector, United Detector Technology UV-100 U9818
  • Beam splitter 90%-10%
  • Rotation table for mounting the radiometers
Type of measurements
Relative spectral response and angular response characterisation of radiometers
Operation time range
1998 – today

Technical Characteristics
EM27SUN spectrometer was developed by KIT in cooperation with Bruker Optics GmbH, Ettlingen, Germany. It is a portable direct solar-viewing ground-based FTIR spectrometer, consisting of a spectrometer body with dimensions of 35 x 40 x 27 cm and a solar tracker, which is directly mounted on the spectrometer.
Type of measurements
Total column-averaged dry-air mole fraction (DMF) of CO2, O2, CH4, CO and H2O can be retrieved from NIR spectral range (4000-12000 cm-1).
Only clear-sky measurements available.
2 channels [4000-5500 (XCH4) , 5000-12000 (XCH4_S-5P Band)]
Operation time range
January 2019 – today, COCCON site in Thessaloniki

 

Model
MOBOTIX Q24
Technical Characteristics
Fish-eye lens in front of the entrance optics
Field of view: 180°
Sampling rate: 1 min
Image resolution: 1280×960 pixels
Type of measurements
All-Sky images
Operation time range
2005 – today
Davis

Technical Characteristics
Davis meteorological station
Type of measurements
Temperature, humidity, precipitation, wind directin and speed
Operation time range
2020 – today

Technical Characteristics
Type of measurements
Operation time range