Back to Explore

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 run by the University of Helsinki. Each station has various in situ instruments mounted on flux towers to collect data on temperature, humidity, wind direction and speed, radiation, and aerosols. Measurements are taken daily with 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

55 Campaigns · 77 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