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Instrument

SMEAR
Station for Measuring Ecosystem-Atmosphere Relations

The Station for Measuring Ecosystem-Atmosphere Relations (SMEAR) is a network of research stations across northern Europe operated by the University of Helsinki. Each station has various in situ instrumentation mounted on flux towers to collect temperature, humidity, wind direction/speed, radiation, and aerosol measurements. Measurements are taken daily at a typical sampling frequency of 1 minute.

NASA's DC-8 flying laboratory passes Antarctica's tallest peak, Mount Vinson, on Oct. 22, 2012, during a flight over the continent to measure changes in the massive ice sheet and sea ice. Credit: NASA/Michael Studinger (Photography courtesy NASA Images)

Overview

Instrument Details

Measurement Type

Multi

Measurement/Variables

Earth Science > Agriculture > Soils > Soil Temperature

Earth Science > Atmosphere > Aerosols

Earth Science > Atmosphere > Precipitation > Liquid Precipitation > Rain

Earth Science > Atmosphere > Atmospheric Chemistry > Trace Gases/trace Species

Earth Science > Atmosphere > Atmospheric Radiation > Longwave Radiation

Earth Science > Atmosphere > Atmospheric Radiation > Net Radiation

Earth Science > Atmosphere > Atmospheric Radiation > Shortwave Radiation

Earth Science > Atmosphere > Atmospheric Radiation

Earth Science > Atmosphere > Atmospheric Temperature > Surface Temperature > Air Temperature

Earth Science > Atmosphere > Atmospheric Temperature > Surface Temperature > Dew Point Temperature

Earth Science > Atmosphere > Atmospheric Temperature > Surface Temperature

Earth Science > Atmosphere > Atmospheric Water Vapor > Water Vapor Indicators > Humidity > Relative Humidity

Earth Science > Atmosphere > Atmospheric Winds > Surface Winds > Wind Direction

Earth Science > Atmosphere > Atmospheric Winds > Surface Winds > Wind Speed

Earth Science > Atmosphere > Atmospheric Winds > Surface Winds

Earth Science > Atmosphere > Precipitation

Earth Science > Biosphere > Vegetation > Photosynthetically Active Radiation

Vertical Measurement Regions

Land Surface

Temporal Resolution

1 min

Spatial Resolution

Point

Measurement Frequency

Variable

Calibration Details

Currently unavailble

Online Information

https://www.atm.helsinki.fi/smear/

Lead Investigator
Currently unavailable
Technical Contact
Mikko Sipila, Pauliina Schiestl-Aalto, Leena Jarvi
Instrument Maker
University of Helsinki
Funding Source
Currently unavailable
Overview Publications
Currently unavailable
Repository
- Global Hydrology Resource Center DAAC (GHRC)

Instrument Operation

Platform

Campaigns, where the platform was used with this instrument

Image of a FLUXNET tower in Harvard Forests, Maine

Image of a FLUXNET tower in Harvard Forests, Maine

Permanent Land Site

Campaign Permanent Land Sites

45 Campaigns · 73 Instruments

Light Precipitation Evaluation Experiment

Gulf of Finland

view all deployment dates

· 22 Data Products

Data Products

Filter data products from this instrument by specific campaigns, platforms, or formats.

Campaigns

Platforms

GPM Ground Validation Kumpula Mast Meteorological Data LPVEx V1http://dx.doi.org/10.5067/GPMGV/LPVEX/MET/DATA101

CampaignsLight Precipitation Evaluation Experiment

PlatformsCampaign Permanent Land Sites

GPM Ground Validation Physicum Building Mast Meteorological Data LPVEx V1http://dx.doi.org/10.5067/GPMGV/LPVEX/MET/DATA201

CampaignsLight Precipitation Evaluation Experiment

PlatformsCampaign Permanent Land Sites