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US-ICt: Imnavait Creek Watershed Tussock Tundra

Tower_team:
PI: Eugenie Euskirchen seeuskirchen@alaska.edu - University of Alaska Fairbanks
PI: Syndonia Bret-Harte msbretharte@alaska.edu - University of Alaska Fairbanks
FluxContact: Colin Edgar cedgar3@alaska.edu - University of Alaska Fairbanks
Lat, Long: 68.6063, -149.3041
Elevation(m): 930
Network Affiliations: AmeriFlux, Phenocam
Vegetation IGBP: OSH (Open Shrublands: Lands with woody vegetation less than 2 meters tall and with shrub canopy cover between 10-60%. The shrub foliage can be either evergreen or deciduous.)
Climate Koeppen: ET (Tundra)
Mean Annual Temp (°C): -7.4
Mean Annual Precip. (mm): 318
Flux Species Measured: CO2
Years Data Collected: 2007 - Present
Years Data Available:

AmeriFlux BASE 2007 - 2024   Data Citation

AmeriFlux FLUXNET 2007 - 2023   Data Citation
Data Use Policy:AmeriFlux CC-BY-4.0 Policy1
Description:
The Imnavait Creek Watershed Tussock Tundra (Biocomplexity Station) is located near Imnavait Creek in Alaska, north of the Brooks Range in the Kuparuk ...
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URL: http://aon.iab.uaf.edu/imnavait
Research Topics:
The research approach of the US Study of Environmental Arctic Change (SEARCH) program, created by Arctic Observatory Networks (AON), is to seek development ...
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Acknowledgment: —
Site Tasks
  1. This site’s data can also be used under the more restrictive AmeriFlux Legacy Policy.
    The AmeriFlux Legacy Policy must be followed if this site’s data are combined with data from sites that require the AmeriFlux Legacy Policy.
Site Photo More Site Images
Image Credit: Sebastien Biraud, 07/09/2018
Copyright preference: Open use
Site Publication More Site Publications

US-ICt: Imnavait Creek Watershed Tussock Tundra

Use the information below for citation of this site. See the Data Policy page for more details.

DOI(s) for citing US-ICt data

Data Use Policy: AmeriFlux CC-BY-4.0 License

This site’s data can also be used under the more restrictive AmeriFlux Legacy Policy.
The AmeriFlux Legacy Policy must be followed if US-ICt data are combined with data from sites that require the AmeriFlux Legacy Policy.

  • AmeriFlux BASE: https://doi.org/10.17190/AMF/1246131
    Citation: Eugenie Euskirchen, Gaius Shaver, Syndonia Bret-Harte (2025), AmeriFlux BASE US-ICt Imnavait Creek Watershed Tussock Tundra, Ver. 7-5, AmeriFlux AMP, (Dataset). https://doi.org/10.17190/AMF/1246131
  • AmeriFlux FLUXNET: https://doi.org/10.17190/AMF/1881583
    Citation: Eugenie Euskirchen, Gaius Shaver, Syndonia Bret-Harte (2024), AmeriFlux FLUXNET-1F US-ICt Imnavait Creek Watershed Tussock Tundra, Ver. 4-6, AmeriFlux AMP, (Dataset). https://doi.org/10.17190/AMF/1881583

Find global FLUXNET datasets, like FLUXNET2015 and FLUXNET-CH4, and their citation information at fluxnet.org.

To cite BADM when downloaded on their own, use the publications below for citing site characterization. When using BADM that are downloaded with AmeriFlux BASE and AmeriFlux FLUXNET products, use the DOI citation for the associated data product.

Publication(s) for citing site characterization

    —

Acknowledgments

    —

Resources

US-ICt: Imnavait Creek Watershed Tussock Tundra

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Note: Results are the number of downloads to distinct data users. The Download Count column indicates the number of times the data user downloaded the data. The Version column refers to the version of the data product for the site that was downloaded by the data user.

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US-ICt: Imnavait Creek Watershed Tussock Tundra

Year Publication
2022 Oehri, J., Schaepman-Strub, G., Kim, J., Grysko, R., Kropp, H., Grünberg, I., Zemlianskii, V., Sonnentag, O., Euskirchen, E. S., Reji Chacko, M., Muscari, G., Blanken, P. D., Dean, J. F., di Sarra, A., Harding, R. J., Sobota, I., Kutzbach, L., Plekhanova, E., Riihelä, A., Boike, J., Miller, N. B., Beringer, J., López-Blanco, E., Stoy, P. C., Sullivan, R. C., Kejna, M., Parmentier, F. W., Gamon, J. A., Mastepanov, M., Wille, C., Jackowicz-Korczynski, M., Karger, D. N., Quinton, W. L., Putkonen, J., van As, D., Christensen, T. R., Hakuba, M. Z., Stone, R. S., Metzger, S., Vandecrux, B., Frost, G. V., Wild, M., Hansen, B., Meloni, D., Domine, F., te Beest, M., Sachs, T., Kalhori, A., Rocha, A. V., Williamson, S. N., Morris, S., Atchley, A. L., Essery, R., Runkle, B. R., Holl, D., Riihimaki, L. D., Iwata, H., Schuur, E. A., Cox, C. J., Grachev, A. A., McFadden, J. P., Fausto, R. S., Göckede, M., Ueyama, M., Pirk, N., de Boer, G., Bret-Harte, M. S., Leppäranta, M., Steffen, K., Friborg, T., Ohmura, A., Edgar, C. W., Olofsson, J., Chambers, S. D. (2022) Vegetation Type Is An Important Predictor Of The Arctic Summer Land Surface Energy Budget, Nature Communications, 13(1), . https://doi.org/10.1038/s41467-022-34049-3
2017 Euskirchen, E. S., Bret-Harte, M. S., Shaver, G. R., Edgar, C. W., Romanovsky, V. E. (2017) Long-Term Release Of Carbon Dioxide From Arctic Tundra Ecosystems In Alaska, Ecosystems, 20(5), 960-974. https://doi.org/http://dx.doi.org/10.1007/s10021-016-0085-9
2012 Euskirchen, E. S., Bret-Harte, M. S., Scott, G. J., Edgar, C., Shaver, G. R. (2012) Seasonal Patterns Of Carbon Dioxide And Water Fluxes In Three Representative Tundra Ecosystems In Northern Alaska, Ecosphere, 3(1), 1-19. https://doi.org/10.1890/ES11-00202.1
2012 Kade, A., Bret-Harte, M. S., Euskirchen, E. S., Edgar, C., Fulweber, R. A. (2012) Upscaling Of CO2 Fluxes From Heterogeneous Tundra Plant Communities In Arctic Alaska, Journal Of Geophysical Research: Biogeosciences, 117(G4), n/a-n/a. https://doi.org/10.1029/2012JG002065

US-ICt: Imnavait Creek Watershed Tussock Tundra

BADM for This Site

Access the Biological, Ancillary, Disturbance and Metadata (BADM) information and data for this site.

BADM contain information for many uses, such as characterizing a site’s vegetation and soil, describing disturbance history, and defining instrumentation for flux processing. They complement the flux/met data.

* Online updates are shown on the Overview tab real time. However, downloaded BADM files will not reflect those updates until they have been reviewed for QA/QC.

US-ICt: Imnavait Creek Watershed Tussock Tundra

Wind Roses

Click an image below to enlarge it, or use the navigation panel.
  • Image scale: 370m x 370m
  • Data Collected:
    • Wind roses use variables ‘WS’ and ‘WD’.
    Download Data Download Wind Rose as Image File (PNG)

    Wind Speed (m/s)

  • Graph Type
  • Wind Speed Scale
  • Wind Direction Scale (%)
  • Show Satellite Image
  • Show Wind Rose
    • Annual Average
    About Ameriflux Wind Roses
    Wind Rose Explanation
    A wind rose gives a succinct view of how wind speed and direction are typically distributed at a particular location. Presented in a circular format, a wind rose shows the frequency and intensity of winds blowing from particular directions. The length of each “spoke” around the circle indicates the amount of time (frequency) that the wind blows from a particular direction. Colors along the spokes indicate categories of wind speed (intensity). Each concentric circle represents a different frequency, emanating from zero at the center to increasing frequencies at the outer circles
    Utility
    This information can be useful to gain insight into regions surrounding a flux tower that contribute to the measured fluxes, and how those regions change in dependence of the time of day and season. The wind roses presented here are for four periods of the year, and in 16 cardinal directions. Graphics are available for all sites in the AmeriFlux network based on reported wind measurements at each site.
    Data from each site can be downloaded by clicking the ‘download’ button.
    Hover the cursor over a wind rose to obtain directions, speeds and intensities.
    Note that wind roses are not equivalent to flux footprints. Specifically, the term flux footprint describes an upwind area “seen” by the instruments measuring vertical turbulent fluxes, such that heat, water, gas and momentum transport generated in this area is registered by the instruments. Wind roses, on the other hand, identify only the direction and speed of wind.
    Where do these data come from?
    The wind roses are based on observed hourly data from the sites registered with the AmeriFlux Network.
    Parameters for AmeriFlux Wind Roses
    To use wind roses for a single AmeriFlux site, the following parameters may be most useful:
    • Wind Speed Scale: Per Site
    • Wind Direction Scale (%): Per Site
    To compare wind roses from more than one single AmeriFlux site, the following parameters may be most useful:
    • Wind Speed Scale: Non-Linear
    • Wind Direction Scale (%): AmeriFlux
    Mar - Jun; 6am - 6pm
    Mar - Jun; 6pm - 6am
    Jun - Sep; 6am - 6pm
    Jun - Sep; 6pm - 6am
    Sep - Dec; 6am - 6pm
    Sep - Dec; 6pm - 6am
    Dec - Mar; 6am - 6pm
    Dec - Mar; 6pm - 6am