Low frequency astrophysics from space

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Henry S.F. Cooper, Jr

An account of the Voyager missions past Saturn details the rendezvous of the two spacecraft with Saturn and the dramatic discoveries about Saturn, with a collection of photographs from Voyager.

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V. B. H. (Gini) Ketelaar

This book covers a unique combination of scientific research and the practical demand for subsidence monitoring techniques focused on the satellite radar interferometry technique (InSAR). It covers the topic in a generic way: both precision and reliability of InSAR as a measurement technique, and the estimation of earth surface deformation in the presence of multiple deformation causes are addressed. It provides a review of existing subsidence estimation methodologies using geodetic measurements, explains Persistent Scatterer InSAR (PSI), and proposes a new method for reliability assessment: multi-track datum connection. The presented methodologies are demonstrated for the entire northern part of the Netherlands and a part of Germany (covering ~15.000 km2), using multi-track SAR observations from ESA’s ERS and Envisat satellites. The capability of PSI for wide-scale monitoring of subsidence rates of several millimeters per year in a rural area (which implies a low PS density) is shown. Additionally, methodologies for a better discrimination of the deformation signal of interest, subsidence due to hydrocarbon production, are assessed. Essential for operational use, the performance of PSI with respect to the leveling technique is quantified. It is shown that the high spatial and temporal observation density of PSI moreover contributes to the understanding of subsurface processes. For example, subsidence due to gas extraction and subsequent uplift due to underground gas storage is clearly detected. Audience: This book will be of interest to scientists and professionals in geodesy and geophysics working with Radar Interferometry, studying displacements, subsidence, earthquakes, or volcanoes.

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Pnina Werbner and Tariq Modood

Cultural hybridity has become one of the key buzz words of late twentieth century critical theory, cited and celebrated as a space of resistance and protest, on the one hand, and tolerance, cosmopolitanism and multiculturalism, on the other. But what are the limits of cultural hybridity? Why is it such a difficult - at times almost impossible - challenge to negotiate differences across cultures? In what ways does racism strike at the foundations of multiculturalism to create pathological cultural hybrids and ambivalences? This pathbreaking new book deconstructs established approaches and discloses why anti-racism and multiculturalism are hard roads to travel. It contains chapters by leading European sociologists and anthropologists.

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Larry Dane Brimner

Simple facts about the Red Planet such as its orbit, atmosphere, and terrain, as well as the outcomes of explorations such as the Pathfinder Mission.