Big Data GIS
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Geospatial big data management tools, topics, and trends
Curated by Dahl Winters
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Mining social media can help improve disaster response efforts

Mining social media can help improve disaster response efforts | Big Data GIS | Scoop.it
Leveraging publicly available social media posts could help disaster response agencies quickly identify impacted areas in need of assistance, according to a team of researchers.
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Blazing Fast Big Data Visualization Over Maps

Blazing Fast Big Data Visualization Over Maps | Big Data GIS | Scoop.it
Visualize and analyze big data faster over maps. Moonshadow visualizes big datasets in online geospatial environments at speeds not previously possible!
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CityPlanner WebGL Editor Teaser

Preview of the upcoming CityPlanner WebGL Editor. View massive 3D-city models, add points of interest, 3D CAD-models, GIS-data sources, survey forms and more...

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Improving Disaster Relief Efforts With GIS - InformationWeek

Improving Disaster Relief Efforts With GIS - InformationWeek | Big Data GIS | Scoop.it

RippleNami's GIS is helping NGOs and other aid organizations make the most of relief efforts by offering multiple layers of insight into an affected area.

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Full Waveform LiDAR Sample Data Now Available For Free - GIS Resources

Full Waveform LiDAR Sample Data Now Available For Free - GIS Resources | Big Data GIS | Scoop.it
The NEON Airborne Observation Platform (AOP) full waveform LiDAR sample data is now available on the Airborne Data page.
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NGA Geowave - Scalable alternative to PostGIS using Apache Accumulo

NGA Geowave - Scalable alternative to PostGIS using Apache Accumulo | Big Data GIS | Scoop.it

GeoWave is an open source set of software that:

- Adds multi-dimensional indexing capability to Apache Accumulo

- Adds support for geographic objects and geospatial operators to Apache Accumulo

- Contains a GeoServer plugin to allow geospatial data in Accumulo to be shared and visualized via OGC standard services

- Provides Map-Reduce input and output formats for distributed processing and analysis of geospatial data

 

Basically, GeoWave attempts to do for Accumulo as PostGIS does for PostgreSQL.

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10 Open Source Remote Sensing Software Packages - GIS Geography

10 Open Source Remote Sensing Software Packages - GIS Geography | Big Data GIS | Scoop.it
There is an abundance of choice for open source remote sensing software. This list of 10 free applications describes what each one brings to the table.
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Favorite Maps of 2014 - Visualization Inspiration

Favorite Maps of 2014 - Visualization Inspiration | Big Data GIS | Scoop.it
Here are some of the maps we came across this year that captivated us with their brains, their beauty, and in many cases, both.
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Holiday Lights From Space: Satellite Sees Cities Brighten (Photos) - Space.com

Holiday Lights From Space: Satellite Sees Cities Brighten (Photos) - Space.com | Big Data GIS | Scoop.it
City lights across the United States blaze 20 to 50 percent more brightly in December than they do the rest of the year, and some cities in the Middle East brighten by more than 50 percent during the Muslim holy month of Ramadan, researchers said.
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Future of geo-spatial technology - Government 2020

Future of geo-spatial technology - Government 2020 | Big Data GIS | Scoop.it

Future of geo-spatial technology, Location becomes an integral dimension of data, allowing information patterns and decisions to be viewed through the lens of place.

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White House Launches Open Data Disaster Portal

White House Launches Open Data Disaster Portal | Big Data GIS | Scoop.it
RT @CntrClimSec: White House Launches Open Data Disaster Portal http://t.co/BUC03k0DGI via @EmergencyMgtMag
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How a Flying Laser Built a 3-D Map of a Massive Alaskan Forest | WIRED

How a Flying Laser Built a 3-D Map of a Massive Alaskan Forest | WIRED | Big Data GIS | Scoop.it
This summer, a team of scientists mapped carbon storage in a massive Alaskan forest using airborne sensors.
Dahl Winters's insight:

Every second = 150,000 laser beams and 75 camera frames

For five weeks = over 25 TB of data

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Applied Spatial Data Science with R

Applied Spatial Data Science with R | Big Data GIS | Scoop.it
Applied Spatial Data Science with R Introduction I recently started working on my Ph.D dissertation which utilizes a vast amount of different spatial data types. During the process, I discovered that there were a lot of concepts about using...
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Philip Knight's curator insight, January 28, 2016 5:54 AM

Tutorial on using R for spatial data analysis. 

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Case Study: Combining Remote Sensing & Cloud technology is the future of farming - Geoawesomeness

Case Study: Combining Remote Sensing & Cloud technology is the future of farming - Geoawesomeness | Big Data GIS | Scoop.it

According to the FAO, the growth rates of global agricultural production and crop yields have slowed in the last couple of years, raising fears that the world may not be able to grow enough food and other commodities to ensure ...

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How Geospatial Data Can Enrich Your Customer Experience | SmartData Collective

How Geospatial Data Can Enrich Your Customer Experience | SmartData Collective | Big Data GIS | Scoop.it

Geospatial data is data that identifies a geographic location on Earth, such as natural or constructed features, oceans, and more. The data is generally stored as coordinates and topology and can be mapped.

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The Challenges of Drone Mapping | GIS Cloud | E...

The Challenges of Drone Mapping | GIS Cloud | E... | Big Data GIS | Scoop.it

Utilizing Drone Imagery - From Spatial Data to Spatial Knowledge Contemporary mapping landscape is changing rapidly. Over the last few decades, most of the | Everything is related to everything else

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8 excellent open source data visualization tools

8 excellent open source data visualization tools | Big Data GIS | Scoop.it

Data visualization is the mechanism of taking tabular or spatial data and conveying it in a human-friendly and visual way. In this article we look at eight open source tools that can help you to create useful and informative graphs.

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Finding farmland: New maps offer a clearer view of global agriculture - 2015 - IIASA

Finding farmland: New maps offer a clearer view of global agriculture - 2015 - IIASA | Big Data GIS | Scoop.it
The study also presents the first ever global field size map—an important proxy for mechanization and human development. This map was based entirely on crowdsourced data collected through IIASA’s Geo-Wiki project, a crowdsourcing initiative that relies on a global network of citizen scientists, who have looked at thousands of high-resolution images of land cover to determine whether cropland was present or not.
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Open-Source Geospatial Toolkit at Scale

Open-Source Geospatial Toolkit at Scale | Big Data GIS | Scoop.it

The National Geospatial-Intelligence Agency (NGA) recently released an application that will allow the public to benefit from the agency’s collaboration with DigitalGlobe on a project that simplifies and economizes the storage and processing of large-scale raster data, reducing the time it takes analysts to search, download, preprocess and format data for analysis.

MapReduce Geo, or MrGeo, is a geospatial toolkit designed to provide raster-based geospatial capabilities performable at scale by leveraging the power and functionality of cloud-based architecture.

Releasing MrGeo helps further the agency’s goal of increasing and streamlining co-creation efforts in software and unclassified data, said Rasmussen. Sharing the application with the open source community helps accelerate its potential to become the standard for storing, enriching and analyzing massive amounts of raster data in a distributed cloud environment.

Dahl Winters's insight:

Great application applying MapReduce to help scale geospatial image processing. Open-sourced on Github.

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The First Ecological Land Units Map of the World

The First Ecological Land Units Map of the World | Big Data GIS | Scoop.it

The US Geological Survey (USGS) and Esri are pleased to announce the publication of the most detailed global ecological land units map in the world. This exciting new global data set provides a science platform for better understanding and accounting of the world’s resources.  Scientists, land managers, conservationists, developers, and the public will use this map to improve regional, national, and global resource management, planning, and decision making.

 


Via Kim Frye
Dahl Winters's insight:

This dynamic online map is at 250 meter resolution and covers the globe.

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Geospatial Big Data - 5 billion square kilometers of imagery and information

Geospatial Big Data is a living digital inventory of the surface of our planet derived from over 5 billion square kilometers of current and historical imagery and information. This inventory...
Dahl Winters's insight:

Starring my coworker Shay Har-Noy in another excellent video describing exciting possibilities for geospatial big data.

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On the usefulness of non-linear indices for remote sensing image classification

On the usefulness of non-linear indices for remote sensing image classification | Big Data GIS | Scoop.it
Not long ago, after a presentation about satellite image time series classification for land cover map production, someone asked me about the real interest of using non-linear radiometric indices a...
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Empowering GIS with Big Data - GIS Lounge

Empowering GIS with Big Data - GIS Lounge | Big Data GIS | Scoop.it
Analysis of Big Data in a geographic context has empowered organizations and businesses faced with huge amount of data and diverse technologies. The integration of maps with multiple layers of information tells the full story behind the data.
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The Huge, Unseen Operation Behind the Accuracy of Google Maps | WIRED

The Huge, Unseen Operation Behind the Accuracy of Google Maps | WIRED | Big Data GIS | Scoop.it
The Google Maps team refines their maps and keeps them up to date with a combination of computer vision algorithms and meticulous manual labor
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