نتایج جستجو برای: regional modeling

تعداد نتایج: 587367  

Journal: :The Journal of Global Positioning Systems 2017

Journal: :Bulletin of Earthquake Engineering 2018

2010
Laura K. Schmitt Anne R. Kapuscinski Kris A. Johnson Peter B. Reich Brian Stenquist Kathryn J. Draeger

Both scenario visioning and participatory system dynamics modeling emphasize the dynamic and uncontrollable nature of complex socio-ecological systems, and the significance of multiple feedback mechanisms. These two methodologies complement one another, but are rarely used together. We partnered with regional organizations in Minnesota to design a future visioning process that incorporated both...

2002
Y. Gao

The ionosphere affects the electromagnetic waves that pass through it by inducing an additional transmission time delay. The ionosphere influence has now become the largest error source in GPS positioning and navigation after the turn-off of the Selective Availability (SA). In this paper, methods of 2D gridbased and 3D tomography-based ionospheric modeling are developed based on regional GPS re...

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