Search for dissertations about: "downward"

Showing result 1 - 5 of 145 swedish dissertations containing the word downward.

  2. 1. Geoid determination over Ethiopia with emphasis on downward continuation of gravity anomailes

    Author : Addisu Hunegnaw; KTH; []
    Keywords : geoidal height; modified stokes formula; downward continuation; phillips-tikhonov regularization; wavelet analysis; lateral density variations;

    Abstract : .... READ MORE

  4. 2. Regional Geoid Determination Methods for the Era of Satellite Gravimetry : Numerical Investigations Using Synthetic Earth Gravity Models

    Author : Jonas Ågren; Lars E. Sjöberg; Zdenek Martince; KTH; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Earth sciences; geoid determination; GOCE; synthetic earth gravity models; kernel modification; downward continuation; Geovetenskap; Earth sciences; Geovetenskap;

    Abstract : It is the purpose of this thesis to investigate different regional geoid determination methods with respect to their feasibility for use with a future GOCE satellite-only Earth Gravity Model (EGM). This includes investigations of various techniques, which involve different approximations, as well as the expected accuracy. READ MORE

  5. 3. The Evaluability Hypothesis : The Syntax and Semantics of Polarity Item Licensing in Swedish

    Author : Johan Brandtler; Svenska; []
    Keywords : HUMANIORA; HUMANITIES; downward entailment; long-distance; wh-questions; edge-feature; Spec-CP; negation; NPIs; PPIs; veridicality; term logic;

    Abstract : This dissertation is concerned with the empirical and theoretical aspects of polarity item licensing in Swedish. I argue that polarity items are semantically sensitive to evaluability, a concept that refers to the possibility of accepting or rejecting a clause as true in a communicative exchange. Clauses are either evaluable or non-evaluable. READ MORE

  6. 4. An Isostatic Earth Crustal Model : and Its Applications

    Author : Mohammad Bagherbandi; Lars E. Sjöberg; Martinec Zdeněk; KTH; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Crustal thickness; inverse isostatic problem; isostasy; isostatic compensation; Moho depth; Moho density contrast; downward continuation; Earth sciences; Geovetenskap;

    Abstract :  The Mohorovičič discontinuity (Moho), which is the surface separating the Earth’s crust from the mantle, is of great interest among geoscientists. The Moho depth can be determined by seismic and gravimetric methods. READ MORE

  7. 5. Auroral Electric Fields From Satellite Observations and Numerical Modelling

    Author : Tomas Karlsson; KTH; []
    Keywords : Satellite measurements; electric fields; ionosphere; magnetosphere; diverging electric fields; downward current region; black aurora; westward travelling surge; auroral bulge; subauroral ion drifts SAID ; subauroral electric fields SAEF ; mid-latit; TECHNOLOGY; TEKNIKVETENSKAP;

    Abstract : This thesis is about electrodynamics of thehigh-latitude/auroral region of near-Earth space. The work ismainly based on electric field measurements made by the doubleprobe instrument on the Freja satellite at altitudes ofapproximately 800-1700 km, together with measurements fromother instruments on the same satellite, and ground-basedinstrumentation. READ MORE