Postcards from The Field

Sentinel For A Great Lakes Estuary Dear

Sentinel for a Great Lakes Estuary

Dear Everyone,

We are out tending the Muskegon Lake Observatory buoy (MLO).  Muskegon Lake is an urbanized Great Lakes estuary connecting Michigan’s 2nd largest watershed to Lake Michigan, the 2nd largest Laurentian Great Lake.  MLO provides time-series weather, water quality and water circulation data from multiple depths, and is on its 6th year of deployment.  Over the years, MLO has been revealing stunning time-lapse details of underwater phenomena such as mixing, stratification, hypoxia and cyanobacterial blooms in this dynamic coastal ecosystem.  MLO data are freely available on the buoy website ( 

Bopi Biddanda, Anthony Weinke, and Scott Kendall  Annis Water Resources Institute, Grand Valley State

Greetings From The Alaskan Arctic We Are Sampling

Greetings from the Alaskan Arctic! We are sampling iron rich soil waters across the tundra to determine role of iron in carbon cycling in the Arctic soil waters. During the survey we can easily spot iron- rich rivers and standing water pools by their characteristic orange color as seen on the picture. 


Adrianna Trusiak, Ph.D. student at the University of Michigan

Greetings Enjoying A View Of The The Underwater


Enjoying a view of the the underwater realm from the point of view of a brook trout in Shenandoah National Park as we assess changes to fish communities in response to changes in stream pH.


Christine May

Department of Biology, James Madison University

Time Travelling In The Sinkholes Of Lake Huron

Time-travelling in the Sinkholes of Lake Huron

Dear everyone,

Here we are diving in the cool waters of the sinkholes in the Thunder Bay National Marine Sanctuary, Lake Huron, in July 2016 (  In this photo, NOAA archaeologist John Bright is grabbing cores of purple cyanobacterial mats that cover the lake floor as part of a collaborative research project with several academic institutions trying to understand life in these low-oxygen, high-sulfur ecosystems.  Could modern-day microbial mats like this have oxygenated our planet during life’s turbulent childhood?

Phil HartmeyerMaritime ArcheologistThunder Bay National Marine Sanctuary

Dear Science Enthusiasts Here Is Our Camp In

Dear Science Enthusiasts,

Here is our camp in northern Nevada, USA, where we are taking sediment cores for an NSF-sponsored palaeoclimate study of the last 3000 years. This part of the world seems to be a transition zone for shifts in northern hemisphere circulation regimes, and we are obtaining samples with array of sites which should provide insight into the spatial and temporal behaviour of major climate transitions in the region.

The dark skies of the Great Basin offer capital stargazing, and we wanted to share this view with you! When the sun comes up, we are back to getting wet and muddy.


Scotty Strachan

Department of Geography, University of Nevada, Reno

Greetings Everyone Im Here At False Cape State

Greetings everyone!

I’m here at False Cape State Park, VA, surveying dunes and grasses using kite aerial photography. This a great spot because two common East Coast dune-building grasses grow side by side–you just have to watch out for the cottonmouths and heat. 


Elsemarie deVries

Did Someone Mention Vintage Clothing Here I Am

Did someone mention vintage clothing?  Here I am making geomagnetic measurement in Daskyleion archaeological site. Summer fashion in 2010, good old days…


Greetings From Cool Morning In Gökçeada Turkey We

Greetings from cool morning in Gökçeada-Turkey. We are not the only early birds while recording magnetic field.

Ebru. Researcher at Canakkale Onsekiz Mart University.

Ahoy Folks During Our Most Recent Expedition We

Ahoy folks,

during our most recent expedition, we arrived at famous Elephant Island 99 years and 11 months after the epic landfall of Sir Ernest Shackleton and his men. We chose to commemorate this event by staging one of his (earlier) photos.

From the left, top: Frank Wild, Sir Ernest Shackleton, Eric Marshall & Cpt. Jameson Adams (©AdP, S4F No.49); bottom: Simon, Me, Marc and Sascha of R/V Polarstern expedition PS97.