Estimation of surface currents using optical satellite imagery of Kelvin wakes

Ocean currents play a crucial role in many scientific and industrial applications. Contemporary measurement techniques are limited in spatial coverage or spatial resolution. This study presents a proof-of-concept for a new measurement principle that merges optical satellite imagery of Kelvin wakes with data from the Automatic Identification...

DopSCA, Scatterometer-based Simultaneous Ocean Vector Current and Wind Estimation

Satellite wind scatterometers like the MetOp SG (Second Generation) SCA of Eumetsat are not designed to measure ocean currents, yet if they could, it would improve the wind vector product and provide important additional information to the oceanographic community for various applications. Previous publications showed this possibility, but only...

Validation of Oceanic Mass Changes derived from GRACE Gravimetry: A comparison with independent data from Bottom Pressure Recorders in the Southern Ocean

The satellite mission GRACE (Gravity Recovery and Climate Experiment) provides monthly solutions of the global gravity field of the Earth. Temporal variations in gravity reflect mass redistributions over the Earth. Those mass movements are caused by physical phenomena such as ice sheet dynamics, accumulation of hydrological masses over land, the...

Geomorphological analysis of a beach and sandbar system

Earth oriented space research at Delft University of Technology 1990-1993

Image analysis of surf zone hydrodynamics

Het voorkomen van het subtropisch tussenwater voor de noordkust van Zuid-Amerika

Oceanographic observations were made during Autumn 1970 and Spring 1971. Special attention is given to the salinity maximum at about 100 m depth, resulting from the subtropical intermediate water possibly from both northern and southern origin. To obtain an insight in the spreading of these water types isentropic analysis according to Montgomery...

Diep water langs de noordkust van Zuid-Amerika

Results of CICAR-investigations off the northern Southamerican coast during autumn 1970 and spring 1971 are given, concerning the water below the 10oC-isotherm. Topographies of the sigma rt =27.3 and 27-4 surfaces indicate a motion of the Subantarctic Intermediate Water mass along the continental rise. This motion being far from regular gives an...

Invloed van de Amazone rivierafvoer op de westelijk tropische Atlantische Oceaan

Observations were made of temperature, salinity, currents and meteorology in the ocean off the northern coast of South America, during autumn 1970 and spring 1971. The observed salinity distributions in the surface layer reflect the seasonal variation in the trade winds. Besides, very strong vertical current shear waS found over the layer...