1. FRAM SA number 1.1 FRAM STRAIT, ARCTIC: PHYSICAL OCEAN PROPERTIES
Alfred Wegener Institute
Helmholtz Centre for Polar and Marine Research
Wilken-Jon von Appen
WP leaders: Please prepare
General Assembly 2017
Vilanova i la Geltrú, Spain; 27 – 29 June 2017

2. SA 1.1- FRAM Array across Fram Strait 1997—2012
WP 10 – Service Activities
Array across Fram Strait 1997—2012
West Spitsbergen Current array
At 78°50’N until 2016
At 79°N since 2016
Yellow+green active

3. SA 1.1- FRAM Interfaced with biological measurements
WP 10 – Service Activities
Interfaced with biological measurements
Process study along 0°EW to improve spatial understanding of long-term measurements—Recirculation

4. SA 1.1- FRAM
WP 10 – Service Activities
WSC moorings include ADCPs measuring the top 250/400m since 2012/2016
2 clusters of 3 moorings each:
Traditional (up to 50m)
Surface (up to 15m)
Winch (150m to surface)
yellow-green triangles in previous slide

5. SA 1.1- FRAM Atlantic Water inflow to Arctic Ocean
WP 10 – Service Activities
Atlantic Water inflow to Arctic Ocean
Temperature increased 1997—2007, then stayed at elevated levels
Monthly and yearly average temperatures in the center of the West Spitsbergen as determined from moorings at 8°E and 7°E. The averages are taken from the surface to 350m depth. An increase in the temperature from 1997 to 2007 is seen with large variability thereafter. This record continues to 2015 as it is possible to be based on a smaller number of moorings than the transport estimates (Fig1). For various logistical reasons, not all moorings deployed in 2012 have been recovered yet.

6. SA 1.1- FRAM Deep waters in 2500m
WP 10 – Service Activities
Deep waters in 2500m
Greenland Sea Deep Water (solid) 0.11°C/decade
Eurasian Basin Deep Water (dashed) 0.05°C/decade
Same temperature expected in 2020
Raw temperature timeseries in approximately 2500m depth from several moorings across Fram Strait. The water is comprised of two end members; one from the north (Eurasian Basin Deep Water) and one from the south (Greenland Sea Deep Water) of Fram Strait. Both of these end members have been warming ( °C/decade (GSDW) and °C/decade (EBDW)). At each time, an individual measurement falls in between these end members. It is expected that in 2020, they will reach the same temperature.

7. SA 1.1- FRAM
WP 10 – Service Activities
Web-Links
PANGAEA Datasets with doi:
same datasets in OceanSITES netCDF Format: ftp://ftp.ifremer.fr/ifremer/oceansites/DATA/FRAM/
lower link provided via fixo3 SA section

8. FRAM SA number 1.2 TIME SERIES ON MEGAFAUNA DENSITY AND DIVERSITY
Alfred Wegener Institute
Helmholtz Centre for Polar and Marine Research
Melanie Bergmann, Ingo Schewe, Felix Janssen
WP leaders: Please prepare
General Assembly 2017
Vilanova i la Geltrú, Spain; 27 – 29 June 2017

9. SA 1.2- FRAM: Description
WP 10 – Service Activities
The seafloor of selected stations of the HAUSGARTEN observatory is surveyed regularly by a towed Ocean Floor Observation System (OFOS). The vertically facing camera system is used to assess large-scale distribution patterns of larger epi-benthic organisms and other objects (e.g. dropstones, garbage) at the deep seafloor.

10. SA 1.2- FRAM: Description
WP 10 – Service Activities
OFOS images are stored in the PANGAEA repository and analysed on the web interface BIIGLE by experts worldwide. The global access enables quality control of analysed images and enhances scientific exchange between experts for different taxonomic groups.
A newly developed GIS based web-viewer developed for this service activity gives also interested amateurs the opportunity to get closer insight to locations of images taken and associated results of organism abundances from the image analysis.

11. SA 1.2- FRAM: Visualisation
WP 10 – Service Activities
blue circles indicate images already analyzed
annotation are displayed per image

12. Web-Links SA 1.1- FRAM OFOS-Viewer product: http://apps3.awi.de/OFOS/
WP 10 – Service Activities
Web-Links
OFOS-Viewer product:
original PANGAEA datasets: