You are browsing the archive for expedition Archives - AGU Blogosphere.
18 July 2017
Caught in the Storm By Robert Emberson Sampling landslides in the field varies in difficulty; some are high up on hillslopes or in the headwaters of steep catchments, while others tumble into easily accessed river valleys. When planning for such sampling, we had mainly anticipated that the weather would not be the biggest obstacle, but that’s what transpired for a major portion of our fieldwork in central Taiwan. The typical …
29 June 2017
Yesterday we were investigating marine volcanism via underwater fumaroles, and today we’re exploring the terrestrial side of Dominica! Scott Brame, a professor at Clemson University, took us to some of the most interesting geological features this volcanic island has to offer.
26 June 2017
Welcome to Dominica, the Nature Island! Located in the Lesser Antilles of the Caribbean Sea, Dominica (not to be confused with the Dominican Republic) is a tropical island with nine active volcanic centers and is a great place to study geology.
23 June 2017
I’ve been in Alaska’s second-largest city for a few days now, resupplying for the trip north as I hike with my dog on the path of the Trans-Alaska pipeline. Three hundred fifty miles down, 450 to go.
30 May 2017
I realised how lucky I am to have observed the glacier in 1972/73 and to have photographed the glacier extensively then so that I was able to show to others one of the demonstratable effects of climate change.
29 May 2017
The weather was still excellent for our final day for departure. I was tempted to stay one day longer but one should not tempt ‘fate’ even if the weather on Monday was going to be good.
26 May 2017
When I walked this same path 20 years ago, I averaged six miles each day. After a few weeks in 2017 of hiking the path of the Trans-Alaska Pipeline, it seems easy to do 10 miles a day. Back then, sometimes my backpack weighed 60 pounds. I’m trying to keep it half that weight now. I started from Valdez with a load of 32 pounds. Most of the reduction is due to clever people who have engineered lighter gear because consumers wanted it, and because of breakthroughs in materials available to designers.
First excursion in the morning was by Marcos and Olaf to Level II Finger Lower Cairn to measure its position using the Survey GPS. After that they moved to Level I Finger Lower Cairn to repeat the survey activity.
25 May 2017
The plan on Friday was conduct Mavic drone flying from the middle of Level II on the glacier. So at 0945, all five of us set off to point ‘403’.
24 May 2017
Day three started the same as day two. Clear sky, moon providing the illumination before dawn, a sharp frost and no wind! Johnny, Olaf and Mark remained in camp to try to get the X8 drone up and flying.
23 May 2017
Each morning’s activity started with Martin getting up at about 0730 to light the cookers. The ground and glacier were frosted. As soon as we left the tent, the condensation inside the tent also turned to ice which fell onto our sleeping bags and mattresses as we entered the tent again to get items required during the day.
19 May 2017
The team was arriving. Meanwhile snow was falling with it settling down to 500 m above sea level (absl). Had winter started early?
18 May 2017
I walked around the chain-link fence of Pump Station 12 of the Trans-Alaska Pipeline, apprehensive about the human encounter to come. It was time to send a weekly column. I needed a Wi-Fi signal or a cellular bar or two. I had walked more than a week through air devoid of communications waves.
Over the next six years, the plan emerged following discussions with Olaf Wündrich of ColibriVentura and others. The major requirement was to find a helicopter able to undertake the flights.
5 May 2017
My wife Kristen looked at the Valdez forecast on her phone as we drove to our take-off point. “It says wintery mix of snow and rain the next few days,” she said. “No one likes a wintery mix.”
28 April 2017
Twenty years ago, I was 34 when I walked away from a chain-link fence near Port Valdez and headed east. Those were the first steps on a summer-long trip across Alaska. In a few days, I will begin to retrace those steps.
16 March 2017
NASA Scientists return to land on Schmidt Ocean Institute’s research vessel Falkor after making important observations of phytoplankton with new technology to support current and future satellite observations.
14 March 2017
The mapped region is almost the size of the state of Connecticut and falls within the recently expanded boundaries of a U.S. marine protected area. The area is populated with high-density deep-sea corals and sponges and is of great interest to researchers who view it as a stepping-stone between distinct marine ecosystems in the Northwestern Hawaiian Islands and the Central and South Pacific.
13 March 2017
The diversity of shapes and sizes in phytoplankton is overwhelming and beautiful. I was able to see the actual individuals that were in the sea surrounding us all the way across the Pacific. Seeing them first-hand made me realize how interrelated all things are on this planet: they may be invisible, but they are important. We are dependent on them and they on us.
16 February 2017
As the bright yellow line and blinking strobe slip slowly down into the heaving waves, I feel a familiar sense of unease. Even though I have seventeen successful deployments of free-drifting, neutrally-buoyant sediment traps (or NBSTs) under my belt, it never feels quite normal to see the gray and orange float with its payload of painstakingly-prepared sample collectors sink away from the comparatively safe, solid deck of the ship.