GIS and Remote Sensing Tools, Tips and more ..

Earth and Moon Viewer , an Impressive site which shows orthographic views of the Earth and the Moon using a mosaic of various satellite imagery including  a full-color  image of the Earth  by day and night, a  topographical map  of the Earth, up-to-date  weather satellite imagery , or a  composite image  of cloud cover superimposed on a map of the Earth, a  color composite  which shows clouds, land and sea temperatures, and ice, or the global distribution of  water vapor .  You can view either a  map of the Earth  showing the day and night regions at this moment, or view the Earth from the  Sun , the  Moon , the  night side  of the Earth, above any location on the planet specified by  latitude, longitude and altitude , from a  satellite in Earth orbit , or above  various cities  around the globe.

Abstract Analyzing space-time variation is common in Geography. Appropriate geo-spatial visualization enables us to understand data in a precise manner. There have been numerous researches, tools, and methods in pursuit of a better visualization method for geospatial data. Here we present the sets of examples developed by us to show the benefits of the web cartography using Google Earth/Google Maps mashups to display geospatial data. Moreover, we include the practical implication of applications that are useful for visualizing geospatial world.

Satellite remote sensing provides valuable information that can be used to map infectious diseases and forecast future health risks. However, amassing and managing the geographic information from diverse datasets is difficult and time-consuming. Therefore, there is a need for a geoinformatics system that integrates the acquisition, processing, management, and analysis of geospatial data sets from various sources. Here, we present our software model for automated data capture and processing of satellite remote sensing data for public health applications.  The system incorporates land surface temperature and vegetation indices from MODIS precipitation data from TRMM, and a novel measurement of actual evapotranspiration.

FOSS4G is the global conference for Free and Open Source Software for Geospatial, organized by the Open Source Geospatial Foundation ( OSGeo ). In 2013, 2013 FOSS4G North America Conference (FOSS4G-NA) will take place May 22-24 at the Marriott City Center in Minneapolis, MN. The gathering of Open Source Geospatial Developers, Users and Leaders from North America will offer a broad program to discuss and build tools to help solve some of the world’s most pressing problems and business needs. This regional event complements the larger FOSS4G International Conference, the leading global conference organized by OSGeo focusing on Free and Open Source Software for Geospatial. 2013 marks the 10 year anniversary of the first MapServer Users Meeting in Minnesota, the immediate predecessor of the FOSS4G Conference Series. foss4g-na 2012 was held on Washington DC.  The 2013 FOSS4G International Conference   i s currently scheduled for September 17-21 in Nottingham, UK. ...

Books Pro Cons It provides solid guide to how geospatial analysis work, particularly with respect to GIS. The book emphasizes conceptual workflows and with basic math which is helpful for creating own code and also getting an understanding of what's happening under the hood in contemporary GIS. It is better to have an update because lots of changes in GIS software over last five years. This book is for typical GIS user aspiring to design good maps. It is illustrating GIS map software and throughout with map samples in color which is especially useful for those who has little prior training or experience in map making. This is acceptable book for beginners but very little information of advanced users. It hardly touches on advanced cartographic representations. This book explains the computational geometry and algorithms concisely and very readable. It emphasis on describing algori...

The International LiDAR Mapping Forum (ILMF) , taking place from February 11-13 2013 in Denver, is delighted to announce that the American Societyfor Photogrammetry and Remote Sensing (ASPRS) will be running special ‘hot topics’ sessions alongside the main conference.  ASPRS plays a vital role in the lidar industry as it is the key organization that sets data format and accuracy standards for kinematic laser scanning.  With a full morning dedicated to ASPRS on February 11, it will be sharing the results of crucial projects to benefit the lidar community; providing information to help improve accuracy and cost efficiency.         Lewis Graham, Lidar Division Director of ASPRS , will kick off the morning by revealing exciting new plans for the development of LAS validation software.  LAS is the standard data delivery format used throughout the world.  It is supported in all commercial lidar hardware and software and is...

pyKML   is an open source Python library for generating, parsing, and modifying   KML , the geo-spatial data language used by Google Earth, Google Maps and a number of other GIS platforms. pyKML helps working with large and complex KML documents by leveraging the use of basic programming constructs (looping, branching, etc.). In this regard pyKML is similar to   libkml , Google’s open source C++ library, but takes advantage of the highly readable syntax of the   Python   programming language and the processing capabilities of the popular   lxml   Python library. pyKML v0.1.0 documentation :  http://packages.python.org/pykml/ Source: Google Geo Developers Blog

Penn state has a nice collection of ArcGIS & Python programming step by step guide for their GEOG 485 students, which is also available for non-students via Penn state website.  This course’s is main aim is to make student able to use the Python scripting language to automate GIS tasks in ArcMap, assemble ArcView geoprocessing tools into models to solve GIS problems, and run the tools from scripts to automate GIS tasks.  Although n o previous programming experience is assumed, the course's target is to make a student as a GIS programmer/analyst in ArcGIS and Python environment.  The course is basically divided into four parts:

“ This book is an attempt to share the knowledge I've gained from the experts at Google. When I joined it, the KML team consisted of two engineers: Bent Hagemark and Michael Ashbridge ("Mash"). Bent and Mash's mission was to corral the existing KML into a formal XML schema, to create compelling examples that would represent good coding style, and to shepherd the language to its new and deserved status as an international standard. I was to create a website for KML and expand the existing documentation. I managed to complete that task, but it always felt as though I'd exposed only the tip of the iceberg. Well, here's The Iceberg.”          – Author "KML Handbook :Geographic Visualization for the Web" is primarily targeted for people who are curious about how to create customized presentations for an Earth browser such as Google Earth but have little or no experience with computer programming. It has step by step guidelines to create...

One of my client’s requirements was to create and open source geospatial DBMS to hold utilities and city shape files. As looking through the internet, I found PostGIS is an open source software program that adds support for geographic objects to the PostgreSQL object-relational database.  As project reference, I choose PostGIS in Action , as project accomplished successfully I realized  my judgment was excellent. PostGIS in Action is a very comprehensive introduction to PostGIS for developers of all levels of experience. Basically it is split into 3 parts: Part 1- Nice and slow startup with PostGIS. You can skip this section if you have prior knowledge about any kinds of spatial databases and geometry data types. Part 2- Put PostGIS in work. It contains technical details on proximity analysis, geocoding addresses, manipulating polygons and lines, and scaling and rotating geometries as well as efficient queries and how to tune your database and selectio...

If you are considering migrating your work to the next level of computational resources this is a great introduction to what's out there and how to get started. This year's "supercomputing in Plain English" workshop is free for audience of not just computer scientists but especially scientists and engineers, including a mixture of undergraduates, graduate students, faculty and staff. These workshops focus on fundamental issues of HPC as they relate to Computational and Data-enabled Science & Engineering, including: