Journal Entry

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 TeamCollection Team Foggy pathBoardwalk 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.

CollectionWorking Carefully in Cold Weather Collecting in FogCollecting in Fog

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

Temp ProbesTemperature Probes

Water samples are taken back to the lab for analysis.

Next stop was a river site.

Icy RiverIce Along River Bank

Again, water was collected for analysis.

Walking to Collection SiteWalking to Collection Site

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

Ice LayersIce Layers

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

Horsetail PlantHorsetail 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 AdriannaKatie and Adrianna

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!