Browsing Nansen Environmental and Remote Sensing Center (NERSC) by Issue Date
Now showing items 1-20 of 62
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Microwave Study programs of Air-Ice-Ocean interactive processes in the Seasonal Ice Zone of the Greenland and Barents Seas
(Geophysical Monograph 68, Chapter, 1992)Describes the use of satellite ice data into a working technology for the satellite data sets of the recent past and immediate future. Chapters cover basic observations, modeling, geophysical interpretation, and using data ... -
Using the Extended Kalman Filter with a Multilayer Quasi-Geostrophic Ocean Model
(Journal article, 1992-11-15)The formulation of the extended Kalman filter for a multilayer nonlinear quasi-geostrophic ocean circulation model is discussed. The nonlinearity in the ocean model leads to an approximative equation for error covariance ... -
Open Boundary Conditions for the Extended Kalman Filter With a Quasi-Geostrophic Ocean Model
(Journal article, 1993-05-18)The formulation of consistent boundary conditions for the quasi-geostrophic (QG) model with an extended Kaiman filter in a data assimilation scheme is discussed. To form a well-posed boundary value problem for the QG model, ... -
Modelling of deep-sea gravity currents using an integrated plume model
(Geophysical Monograph Series; 85, Chapter, 1994) -
Sequential data assimilation with a nonlinear quasi-geostrophic model using Monte Carlo methods to forecast error statistics
(Journal article, 1994-05-15)A new sequential data assimilation method is discussed. It is based on forecasting the error statistics using Monte Carlo methods, a better alternative than solving the traditional and computationally extremely demanding ... -
Inverse Methods and Data Assimilation in Nonlinear Ocean Models
(Journal article, 1994-10-01)An overview is given of the current status of inverse methods and data assimilation for nonlinear ocean models. The inverse theory for time dependent dynamical models is formulated and the most promising solution methods ... -
An ERS 1 synthetic aperture radar image of atmospheric lee waves
(Journal article; Peer reviewed, 1994-11-15)An ERS 1 synthetic aperture radar (SAR) image of the island Hopen shows a distinct 7.6-km wavelength wave phenomenon near the island. This wave phenomenon is interpreted as the surface imprint on open water of atmospheric ... -
Satellite detection of natural films on the ocean surface
(Journal article; Peer reviewed, 1996-11-01)Natural films on the ocean surface influence air-sea fluxes of momentum, heat, and gas. It is therefore essential to be able to map the geographical extent and variability of such films to determine the resulting impact ... -
Data assimilation for coastal zone monitoring and forecasting
(Elsevier oceanography series. (EuroGOOS publication no. 7), Chapter, 1997) -
Analysis of merged SMMR-SSMI time series of Arctic and Antarctic sea ice parameters 1978-1995
(Journal article; Peer reviewed, 1997-02-15)The most consistent means of investigating the global sea ice cover is by satellite passive microwave sensors, as these are independent of illumination and cloud cover. The Nimbus 7 Scanning Multichannel Microwave Radiometer ... -
Parameter Estimation Solving a Weak Constraint Variational Formulation for an Ekman Model
(Journal article, 1997-06-15)A weak constraint variational formulation is used for inverse calculations and parameter estimation in a one-dimensional Ekman model. When parameters in the model are allowed to contain errors, the inverse problem becomes ... -
Cover ERS-1/2 SAR monitoring of dangerous ice phenomena along the western part of Northern Sea Route
(Journal article; Peer reviewed, 1997-08-01) -
Coastal wind field retrievals from ERS synthetic aperture radar images
(Journal article; Peer reviewed, 1998-04-15)A unique series of European Remote Sensing Satellite (ERS) 1 and 2 C band synthetic aperture radar (SAR) images was obtained off the southern coast of Norway during the Coast Watch’95 experiment in September 1995. In this ... -
Greenland Sea Odden sea ice feature: Intra-annual and interannual variability
(Journal article; Peer reviewed, 1998-06-15)The “Odden” is a large sea ice feature that forms in the east Greenland Sea that may protrude eastward to 5 °E from the main sea ice pack (at about 8 °W) between 73° and 77 °N. It generally forms at the beginning of the ... -
Barents Sea seasonal ice zone features and processes from ERS 1 synthetic aperture radar: Seasonal Ice Zone Experiment 1992
(Journal article; Peer reviewed, 1999-07-15)Sea ice features and processes in the Barents Sea were studied during the Seasonal Ice Zone Experiment 1992 (SIZEX92), a dedicated ERS 1 satellite synthetic aperture radar (SAR) field campaign carried out in March 1992. ... -
Two-phase, near-field modeling of purposefully released CO2 in the ocean
(Journal article; Peer reviewed, 2001-01-15) -
Ocean release of fossil fuel CO2: A case study
(Journal article; Peer reviewed, 2001-07-01)The natural ocean uptake of the greenhouse gas CO2 can be accelerated by collecting and liquefying the gas from point sources, and by pumping it into the ocean at appropriate locations and at sufficient depths. Results ... -
Sea ice investigations in the Laptev Sea area in late summer using SAR data
(Journal article; Peer reviewed, 2001-10)The Laptev Sea area, including the Vilkitsky Strait, is an important part of the Northern Sea Route where the presence of sea ice makes navigation difficult even in the summer season. The objective of this study was therefore ... -
Observing the Ocean from Space: Emerging Capabilities in Europe
(Chapter, 2001-12)During the first decade of the 21st century Earth observation from satellites will be faced with two major demands: provision of continuity missions and launch of new exploratory missions. This paper addresses European ... -
Earth science – oceanography
(Chapter, 2002)Satellite oceanography began with the Gemini XII flight in November 1966. From a Hasselblad camera mounted in the pilot’s window large internal waves in the eastern tropical Atlantic were photographed via sunglitter for ...