Several research groups based at Toolik Field Station are monitoring geochemical markers in the watershed. Groups work cooperatively to travel to research sites and collect water samples. Cold, rainy, foggy weather doesn't keep the researchers inside.

    Collection Team
    Collection Team

    Foggy path
    Boardwalk to Sample Sites

    We trekked to stream sites in a watershed. Water is analyzed for pH, dissolved oxygen, and carbon dioxide. Researchers were precise when collecting samples, despite the cold and rain.

    Collection
    Working Carefully in Cold Weather

    Collecting in Fog
    Collecting in Fog

    Soil temperature is recorded at 5 and ten centimeter depths, and depth to permafrost is measured.

    Temp Probes
    Temperature Probes

    Water samples are taken back to the lab for analysis.

    Next stop was a river site.

    Icy River
    Ice Along River Bank

    Again, water was collected for analysis.

    Walking to Collection Site
    Walking to Collection Site

    Layers of ice hang to the river banks. Green ice is clearly seen despite the foggy day.

    Ice Layers
    Ice Layers

    Horsetail plants grow along the rocky bank. Horsetails are one of the first plants to appear on earth.

    Horsetail Plant
    Horsetail Plant

    I'm impressed with the dedication and enthusiasm of the researchers here. This is a great group. No wonder that they are leaders in their fields.

    Katie and Adrianna
    Katie and Adrianna

    Date
    Weather Summary
    Cool, rainy, foggy
    Temperature
    5.5ºC

    Comments

    Bruce Taterka

    Hi Regina -Great thunderstorm video! Looks like you had fun sampling in the fog. Are you getting used to life at Toolik?
    - Bruce

    Betsy Wilkening

    Which water tests are done in the field are what is done in the lab on the water samples? Can you tell us how they do the tests?

    Regina Brinker

    Hi, Bruce,
    Thanks for the nice comments. Yes, I'm getting used to being here,
    although the days blend together. Seems that field camp is a cycle of
    work interrupted by sleep. Fog is lifting, so feeling optimistic about
    getting outside today without getting wet.

    Regina Brinker

    Field tests include pH,conductivity, temp
    turbidity

    In the lab, the microbe group is finding microbial DNA, and correlating
    this to the amount of CO2 found at specific water sites.

    In lab: CO2, O2, nitrates, chlorphyll, dissolved organic and inorganic
    compounds, organic matter (color and fluorescence using a spectrometer)
    and other things.

    Both groups are measuring amount of CO2 in water from various sites.
    The researcher I am working with measures light using a C-OPS monitor.
    (http://www.biospherical.com/index.php?option=com_content&view=article&i…)

    I brought along a Vernier pyronometer probe to also measure light
    (in kW/m2) and Dr. Cory feels that this instrument would work well in a
    classroom setting. The light influences release of CO2 from water.

    I'm looking for a way to duplicate some of the research locally,
    thinking of students doing independent research projects. I'll let you
    know what I come up with!