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15

Annual Report 2016

SAMCoT

DATA COLLECTION AND PROCESS MODELLING

More than 20 years of extensive experimental investigations on Svalbard, the Barents and

Kara Seas regions back up the work done by this Work Package. Numerous researchers,

MSc and PhD students have worked together with the aim of providing the experimental

basis for PhD students over the years. Field studies in the regions of the Russian Arctic

are also carried out with the cooperation of Moscow State University (MSU) and Krylov

State Research Centre.

The researchers’ main goal is to collect and analyze field data on sea ice, icebergs, and

coastal permafrost working with these data on the necessary models for further research.

COMPARISON OF SEA ICE PRODUCTS AND DATA OF DRIFTING

BUOYS IN THE BARENTS SEA

Several institutions and agencies around the world

provide “Sea Ice Products”, in other words data that

contain valuable information on, for example, mean ice

motion vectors derived from passive microwave sensors,

visible and infrared sensors and other sources.

Researcher Nataly Marchenko compared Sea Ice Produ-

cts data from the Barents Sea. The Barents Sea is a very

interesting region for SAMCoT’s research due to its loca-

tion and to the presence of sea ice that is representative

of sea ice trends observed widely. Sea ice is a key factor

in marine operations and navigation in the Arctic. An

evident decrease in the ice cover in relation to both area

and thickness has been determined. The thinning of the

ice cover leads to more broken ice. This broken ice is

an important factor to take into account during offshore

activities in these waters. How this broken ice affects

these activities is not yet well-known. Furthermore, the

amount of multi-year ice has reduced significantly.

The ice conditions in the Barents Sea are representative

of the new trends we see in the Arctic ice, including

the prevalence of glacial ice (icebergs). Thus, the

Barents Sea is a good study area for SAMCoT containing

all these components as well as being a prosperous

area for present and future oil and gas exploitation.

N. Marchenko obtained relevant data from the French

Research Institute for Exploitation of the Sea (IFREMER),

the Ocean and Sea Ice Satellite Application Facility (OSI

SAF), the National Snow and Ice Data Center (NSIDC),

the Anistiamo Space Systems Finland, and TOPAZ

(Towards an Operational Prediction system for the North

Atlantic European coastal Zones) for comparison with

data from WP1 drifting buoys (ice trackers) deployed on

sea ice over the period 2008 – 2015.

Using these data, N. Marchenko defined ice drift lines

for various regions of the Barents Sea under years

and time-period parameters. She analyzed 20 cases

where WP1 data showed stable buoys movement. The

comparison of the different data sets available for these

20 cases revealed that the Sea Ice Products mostly

show similar trajectories to the buoys’ data in the Arctic

basin, but in marginal zones, such as the Barents Sea,

important trajectory differences were found. From the

different Sea Ice Products services, NSIDC showed the

highest coincidence (75 % of cases).

IFREMER gave 40 % coincidence for open Barents Sea

water. The worst coincidence was observed when using

the regional Sea Ice Products Antistiamo and TOPAZ.

In addition to other activities, N. Marchenko is respon-

sible for the WP1 data storage and GIS system. Data

obtained in 2016 are now available in ArcGIS including

data from two drifting buoys installed by Aleksey

Marchenko during the 2016 Lance expedition. This year,

for the first time since the beginning of SAMCoT, the

buoys also transferred wind data.

SAMCoT GEOGRAPHIC

INFORMATION SYSTEM (GIS)