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Cherskii (Russia)


Location

Permafrost area with tussocks

Latitude 68.61
Longitude 161.34

Overview

  • 2002-2005 TCOS
  • 2013 PAGE 21
  • Eddy covariance (CO2, Methane)
  • Meteorology
  • Methane and CO2 chamber measurements over Tussocks

Projects

Collaboration

Pleistocene Park Sergei A. Zimov, Northeast Science Station (NESS), Cherskii, RU

Description & History

The research area is located on a wide floodplain in Kolyma lowland, Cherskii, Russia. The study site is situated approximately 100 km south of the Arctic Ocean and mainly characterised by migrating channels and lakes. Additionally, ice-wedge formation and frost polygons of about 20 m diameter take place overthe whole territory.

The region is mainly characterised by thermokarst depressions and ponds. Thermokarst is defined as a landscape characterized by shallow pits and depressions causedby selective thawing of ground ice, or permafrost. The ponds continue to expand, become deeper (2 to 3 m) and merge to become lakes, and these again expand by several meters a year due to thermokarst erosion.

If lakes break through the bank of the nearest river channel, they drain, and a wide depression (Laida) evolves. These laida-depressions are flooded each year, but by a long-term succession they become a tussock-grassland (Corradi et al., 2005).

The vegetation of the laida depressions is dominated by Calamagrostis species while the uneroded plain areas are covered by tussock grasslands (Carex appendiculata) with cottongrass (Eriophorum angustifolium) growing in the hollows between the tussocks. Topographically higher levels, such as river banks, may be covered by willow or Larch trees.(Corradi et al., 2005)

During summer 2005 measurements, under artificially introduced water stress by means of the drainage channel flux measurements (CO2, sensible & latent heat flux), were taken, using eddy covariance technology. The three previous years were measured under normal conditions using almost similar equipment (Corradi et al., 2005).

In 2013 two new Eddy flux towers were established to measure fluxes of CO2 and H2O with LI 7500 open path gas analyzers and in 2014 CH4 will be measured as well with fast greenhouse gas analyzers from Los Gatos Research. One tower is located at the artificial drained site and a second tower is located on a control site.

In 2013 on each of the drained and control site 10 chambers were installed. These chambers are equipped to measure fluxes of CO2 and CH4 over tussocks.

Variables & Instruments

"Drainage-Tower"

Fluxes

  • Eddy covariance 2013 - CO2, water vapor, momentum, heat (USA-1, LI7500)
  • Eddy covariance 2014 - CH4, CO2, water vapor, momentum, heat (USA-1, LI7500 and Los Gatos)

Meteorology

  • Wind velocity and wind direction - ultrasonic-anemometer USA-1, Metek
  • Wind velocity and wind direction - ultrasonic-anemometer 3D, Thies
  • Air pressure - barometric pressure sensor 61302V, Young
  • Air temperature and humidity at 2 m and 6 m - temperature-humidity-sensor KPK1_6-ME-H38, Mela
  • Precipitation - heated tipping bucket rain gauge, Thies
  • Solar radiation - net radiometer CNR4, Kipp & Zonen
  • Terrestrial radiation - net radiometer CNR4, Kipp & Zonen
  • Photosynthetically active radiation - PAR sensor PQS1, Kipp & Zonen

Soil conditions

  • Snow height - sonic ranging sensor for snow depth SR50AH, Campbell Scientific
  • Soil moisture - soil moisture probes ML-2x, Delta-T

Data acquisition

  • Meteorological data - datalogger CR3000, Campbell Scientific
  • Flux data - computer
  • Vegetation - digital web camera

"Control-Tower"

Fluxes

  • Eddy covariance 2013 - CO2, water vapor, momentum, heat (USA-1, LI7500)
  • Eddy covariance 2014 - CH4, CO2, water vapor, momentum, heat (USA-1, LI7500 and Los Gatos)

Meteorology

  • Wind velocity and wind direction - ultrasonic-anemometer USA-1, Metek
  • Air pressure - barometric pressure sensor 61302V, Young
  • Air temperature and humidity at 2 m and 6 m - temperature-humidity-sensor KPK1_6-ME-H38, Mela
  • Precipitation - heated tipping bucket rain gauge, Thies
  • Solar radiation - net radiometer CNR4, Kipp & Zonen
  • Terrestrial radiation - net radiometer CNR4, Kipp & Zonen
  • Photosynthetically active radiation - PAR sensor PQS1, Kipp & Zonen

Soil conditions

  • Snow depth - sonic ranging sensor for snow depth SR50AH, Campbell Scientific
  • Soil moisture - soil moisture probes ML-2x, Delta-T

Data acquisition

  • Meteorological data - datalogger CR3000, Campbell Scientific
  • Flux data - computer

"Tussock-Chambers"

Fluxes

  • Chamber measurements of CH4, CO2, H2O - ultra-portable greenhouse gas analyzer UGGA 915-0011-1000, Los Gatos

Meteorology

  • Air pressure - barometric pressure sensor 61302V, Young
  • Air temperature and humidity - temperature-humidity-sensor KPK1_9-ME, Mela

Soil conditions

  • Soil temperature - soil temperature profile probe Th3-s, Hoskin Scientific
  • Soil moisture - soil moisture probes ML-2x, DeltaT

Data acquisition

  • Flux data - computer
  • Meteorological data and soil conditions - datalogger CR1000, Campbell Scientific

Publications

Kittler F, Burjack I, Corradi CAR, Heimann M, Kolle O, Merbold L, Zimov N, Zimov SA and Göckede M (2016) Impacts of a decadal drainage disturbance on surface–atmosphere fluxes of carbon dioxide in a permafrost ecosystem. Biogeosciences Discussions. doi: 10.5194/bg-2016-123

Corradi, C., Kolle, O., Walter, K., Zimov, S. A., Schulze, E.-D. (2005). Carbon dioxide and methane exchange of a north-east Siberian tussock tundra. Global Change Biology, 11(11), 1910-1925

Merbold, L., Kutsch, W. L., Corradi, C., Kolle, O., Rebmann, C., Stoy, P. C., Zimov, S. A., Schulze, E.-D. (2009). Artificial drainage and associated carbon fluxes (CO2/CH4) in a tundra ecosystem. Global Change Biology, 15(11), 2599-2614. doi:10.1111/j.1365-2486.2009.01962.x.