Resonant Absorption as Mode Conversion? II. Temporal Ray Bundle

A fast-wave pulse in a simple, cold, inhomogeneous MHD model plasma is constructed by Fourier superposition over frequency of harmonic waves that are singular at their respective Alfven resonances. The pulse partially reflects before reaching the resonance layer, but also partially tunnels through to it to mode convert to an Alfven wave. The exact absorption/conversion coefficient for the pulse is shown to be given precisely by a function of transverse wavenumber tabulated in Paper I of this sequence, and to be independent of frequency and pulse width.Comment: 6 pages, 4 figures, accepted (15 Nov 2010) by Solar Physics. Ancillary file (animation) attache

Mapping API’s: Leaflet - Getting Started

Welcome to the Essential ArcGIS Task Sheet Series. This series supplements the Iowa State University GIS Geospatial Technology Training Program short course series. The task sheets are designed to provide quick, easy instructions for performing mapping tasks.https://lib.dr.iastate.edu/extension_pubs/1173/thumbnail.jp

Mapping API’s: Google Maps API v3 - Getting Started

Welcome to the Essential ArcGIS Task Sheet Series. This series supplements the Iowa State University GIS Geospatial Technology Training Program short course series. The task sheets are designed to provide quick, easy instructions for performing mapping tasks.https://lib.dr.iastate.edu/extension_pubs/1176/thumbnail.jp

Creating Random Points

Welcome to the Essential ArcGIS Task Sheet Series. This series supplements the Iowa State University Geospatial Technology Training Program short course series. The task sheets are designed to provide quick, easy instructions for performing mapping tasks.https://lib.dr.iastate.edu/extension_pubs/1120/thumbnail.jp

QGIS: Projections & Enabling on the Fly Projection

A projection is a way to translate the curved surface of the earth (3D) onto a flat map (2D). The challenge is that every map projection has distortion because the spherical nature of the globe cannot be perfectly represented in a two dimensional map. The picture below illustrates similarities and differences of three map projections. This image powerfully demonstrates the importance of defining the projection. For example, if you were working with data in Washington State you may have very different results working in Mercator or Lambert Conformal Conic. Knowing the projection of your data is important especially when working with data that is part of a dataset that is larger than just your county or state. This tasksheet will cover how to change the projection of an existing file as well as enabling on the fly projection in QGIS.https://lib.dr.iastate.edu/gis_tasksheets/1022/thumbnail.jp

Mapping API’s: Google Maps API v3 - Adding Markers

Welcome to the Essential ArcGIS Task Sheet Series. This series supplements the Iowa State University GIS Geospatial Technology Training Program short course series. The task sheets are designed to provide quick, easy instructions for performing mapping tasks.https://lib.dr.iastate.edu/extension_pubs/1175/thumbnail.jp

Mapping API’s: Leaflet - Getting Started with Turf.js

Turf.js is an open source JavaScript library for advanced geospatial analysis that allows for spatial operations to be preformed in the browser. Turf will help you analyze, aggregate, and transform data in order to visualize it in new ways and answer spatial questions. This task sheet with get you getting started with Turf.js and demonstrate the midpoint measurement and linestring helper functions. You can find the completed code for this task sheet at https://github.com/ISUEOGTP/GISTaskSheets/tree/master/Leaflet-Tutorials/turf-midpoints.html.https://lib.dr.iastate.edu/gis_tasksheets/1002/thumbnail.jp

Exporting Maps as Interactive PDFs

Welcome to the Essential ArcGIS Task Sheet Series. This series supplements the Iowa State University GIS Geospatial Technology Training Program short course series, “Essential ArcGIS Tutorial Series.” The task sheets are designed to provide quick, easy instructions for performing specific tasks in GIS.https://lib.dr.iastate.edu/extension_pubs/1184/thumbnail.jp

Online Mapping with CartoDB

Welcome to the Essential ArcGIS Task Sheet Series. This series supplements the Iowa State University Geospatial Technology Training Program short course series. The task sheets are designed to provide quick, easy instructions for performing mapping tasks.https://lib.dr.iastate.edu/extension_pubs/1149/thumbnail.jp

Mapping API’s: Leaflet - Custom Div Markers

Welcome to the Essential ArcGIS Task Sheet Series. This series supplements the Iowa State University GIS Geospatial Technology Training Program short course series. The task sheets are designed to provide quick, easy instructions for performing mapping taskshttps://lib.dr.iastate.edu/extension_pubs/1166/thumbnail.jp