Preindustrial-to-present-day radiative forcing by tropospheric ozone from improved simulations with the GISS chemistry-climate GCM D. T. Shindell, G. Faluvegi, and N. Bell NASA Goddard Institute for Space Studies, and Center for Climate Systems Research, Columbia University, New York, New York, USA Received: 22 May 2003 – Accepted: 4 July 2003 – Published: 28 July 2003 Correspondence to: D. T. ...

Comprehensive knowledge and understanding of the breakdown behavior solid-gas interfaces are important for development, optimization, coordination insulation in practical high-voltage (HV) gas-insulated systems (GISs) that widely used power pulsed industries. However, despite significant research efforts focused on characterization parameters properties complex gas-filled HV systems, basic mech...

A federated GIS is a collection of heterogeneous GIS that collectively act as a single source of geographical information. Spatial metadata plays an important role in accessing information from a federated GIS and furthermore, is seen as the key to achieving interoperability. Metadata usually conforms to a standard such as the Australia New Zealand Land Information Committee (ANZLIC) standard; ...

We investigate the issue of “dangerous humanmade interference with climate” using simulations with GISS modelE driven by measured or estimated forcings for 1880– 2003 and extended to 2100 for IPCC greenhouse gas scenarios as well as the “alternative” scenario of Hansen and Sato (2004). Identification of “dangerous” effects is partly subjective, but we find evidence that added global warming of ...

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Natural language interface to spatial databases have not received a lot of attention in computational linguistics, in spite of the potential value of such systems for users of Geographical Information Systems (GISs). This paper presents a controlled language for GIS queries, solves some of the semantic problems for spatial inference in this language, and introduces a system that implements this...

Sensitivity studies of oxidative changes in the troposphere in 2100 using the GISS GCM J. L. Grenfell , D. T. Shindell, and V. Grewe 3 NASA Goddard Institute for Space Studies and Center for Climate Systems Research, Columbia University, New York, USA Present address: Stratosphärengruppe, Institut für Meteorologie, Freie Universität Berlin, Germany Present address: DLR-Institut für Physik der A...