Search Results - "Johannessen, O.M."

A possible generation mechanism for internal waves near the edge of a submesoscale eddy by Chunchuzov, I.P., Johannessen, O.M., Marmorino, G.O.

“…Recently, it has been shown for the first time by observations that an anticyclonic mesoscale eddy can generate internal waves (wavelengths of 0.4 to 1 km)…”
Get full text

Observations of internal waves generated by an anticyclonic eddy: a case study in the ice edge region of the Greenland Sea by Johannessen, O.M., Sandven, S., Chunchuzov, I.P., Shuchman, R.A.

“…Internal waves in the ocean play an important role in turbulence generation due to wave-breaking processes and mixing of the ocean. Airborne radar images of…”
Get full text

Multisensor approach to automated classification of sea ice image data by Bogdanov, A.V., Sandven, S., Johannessen, O.M., Alexandrov, V.Yu, Bobylev, L.P.

“…A multisensor data fusion algorithm based on a multilayer neural network is presented for sea ice classification in the winter period. The algorithm uses…”
Get full text

SAR-retrieved wind in polar regions-comparison with in situ data and atmospheric model output by Furevik, B.R., Johannessen, O.M., Sandvik, A.D.

“…European remote sensing (ERS) satellites synthetic aperture radar (SAR) wind retrievals using CMOD-IFR2 are, for the first time, retrieved in the marginal ice…”
Get full text

Hotspots in ambient noise caused by ice-edge eddies in the Greenland and Barents Seas by Johannessen, O.M., Sagen, H., Sandven, S., Stark, K.V.

“…Mesoscale eddies are frequently observed in the Greenland and Barents Seas' marginal ice zone (MIZ). The objective of this study was to investigate the…”
Get full text

The Challenge of Long-Term Climate Change by Hasselmann, K., Latif, M., Hooss, G., Azar, C., Edenhofer, O., Jaeger, C. C., Johannessen, O. M., Kemfert, C., Welp, M., Wokaun, A.

“…Climate policy needs to address the multidecadal to centennial time scale of climate change. Although the realization of short-term targets is an important…”
Get full text

Satellite-based wind maps as guidance for siting offshore wind farms by Furevik, B. R., Espedal, H. A., Hamre, T., Hasager, C. B., Johannessen, O. M., Jørgensen, B. H., Rathmann, O.

“…Offshore wind farms have started to contribute important supplies of renewable energy. The energy production of a wind farm depends upon the local wind climate…”
Get full text

Multi year sea ice concentration mapping using passive and active microwave satellite data by Shalina, E.V., Johannessen, O.M.

“…Though changes of the full ice cover in the Arctic are well described due to availability for processing SMMR/SSMI passive microwave data, changes of the…”
Get full text

Greenland ice sheet elevation change from 1992 to 1999 derived from ERS-1 and ERS-2 satellite altimeter measurements by Khvorostovsky, K.S., Bobylev, L.P., Johannessen, O.M.

Get full text

Ice Edge Motion During Mizex'87 by Sandven, S., Johannessen, O.M.

Get full text

Ice-Edge Eddies in the Fram Strait Marginal Ice Zone by Johannessen, O. M., Johannessen, J. A., Svendsen, E., Shuchman, R. A., Campbell, W. J., Josberger, E.

“…Five prominent ice-edge eddies in Fram Strait on the scale of 30 to 40 kilometers were observed over deep water within 77° N to 79° N and 5° W to 3° E. The use…”
Get full text

A comparative analysis of data on multiyear sea ice distribution in the Arctic as retrieved from satellite passive microwave radiometer and radar images by Alexandrov, V.Y., Johannessen, O.M., Samsonov, I.V., Bobylev, L.P., Kloster, K.

“…This study deals with a comparison of estimates on multiyear sea ice distribution in the Arctic, derived from SSM/I data using NORSEX algorithm and from…”
Get full text

Arctic ice transformations: multiyear ice changes in comparison with summer minima by Shalina, E.V., Johannessen, O.M., Miles, M.W.

“…Passive satellite microwave data provide an extended time series for long-term monitoring of polar processes. Though the Arctic ice cover is composed of…”
Get full text

Wind energy mapping from synthetic aperture radar by Johannessen, O.M., Espedal, H., Bjorgo, E.

“…Satellite based synthetic aperture radar (SAR) measurements from, e.g. ERS-1/ERS-2 can be used for wind energy mapping in coastal regions for wind mill siting…”
Get full text

Two decades of microwave satellite observations of arctic sea ice variability and trends by Johannessen, O.M., Miles, M.W., Shalina, E.V.

“…Passive microwave satellite data are effective for monitoring the polar sea ice cover. Two decades of data have now been obtained from the Scanning…”
Get full text

COASTWATCH'95: modeling of ocean fronts imaged by SAR by Johannessen, O.M., Espedal, H., Akimov, D.B.

“…In order to interpret SAR images of marine processes, it is necessary to have available suitable models which can retrieve from SAR images quantitative…”
Get full text

Near-real-time sea ice monitoring in the northern sea route using ERS-1 sar and DMSP SSM/I microwave data by Johannessen, O.M., Sandven, S., Pettersson, L.H., Miles, M., Kloster, K., Melentyev, V.V., Bobylev, L.P., Kondratyev, K.Ya

“…Active and passive microwave sensor data from satellites are useful for studies of the sea ice in the polar regions, including the Eurasian Arctic. Their…”
Get full text

Coastal wind field retrievals from ERS SAR images by Korsbakken, E., Johannessen, J.A., Johannessen, O.M.

“…A unique series of ERS-1/2 C-band SAR images was obtained off the southern coast of Norway during the COAST WATCH'95 experiment in September 1995. In this…”
Get full text

Time series analysis of SMMR and SSM/I data for climate change detection by Johannessen, O.M., Miles, M.W., Bjorgo, E.

“…Sea ice is a sensitive component of the climate system, such that reductions in the Arctic and Antarctic sea ice covers could be indicative of greenhouse…”
Get full text

Natural films in coastal waters by Espedal, H.A., Johannessen, O.M., Knulst, J.

“…Mesoscale ocean phenomena such as eddies are often depicted by characteristic film patterns. Surface slicks dampen out the centimetre-scale surface waves,…”
Get full text