0

Your Cart is Empty

GeoNode open source geospatial content management system, GIS and Geospatial podcast

GeoNode - Open Source Geospatial Content Management System

by Daniel ODonohue 5 min read

GeoNode is an open-source geospatial platform, catalog, and content management system (CMS). The general functionality can be most likened to ArcGIS Online. Users can create filtered searches for their choice of geospatial data, by using keywords, and even filtering locations by selecting a bounding box on a map.
Read More
mapping drones, LiDAR from Drones, geospatial data collection from drones

LiDAR From Drones

by Daniel ODonohue 6 min read

Drones generate a lot of data. So much data, that the software intended to process it needs for it to be thinned before it can be used. It can be tricky to dumb the data down, intelligently. You may be needing to reduce 300 points in a 1x1m square, down to a single point. Generally, these complicated decisions will be streamlined through use of algorithms that can help smooth the overall data.
Read More

Hiring And Being Hired For Geospatial Jobs

Hiring And Being Hired For Geospatial Jobs

by Daniel ODonohue 6 min read

Crafting a quality application for a job you really want takes time, so you do not want to spread yourself too thin. When constructing your CV, it is important to keep your audience in mind. Realistically, the first set of eyes will likely be a computer algorithm, scraping the submitted CVs for certain keywords.

Read More
Personal branding for geospatial people

Building A Personal Brand In The Geospatial Industry

by Daniel ODonohue 5 min read

Social media and the internet have made it easier than ever to get your name out there, but not all publicity is good publicity. The key is not just consistently creating content, it is in creating quality content that attracts a consistent community.
Read More

Geospatial podcast about GIS, remote sensing, earth observation and the mapping industry

The Problem With Satellite Data Is That It Is Not A Commodity

by Daniel ODonohue 6 min read

 A commodity is a standard, interchangeable product or good which may be used as the input for creation of another product or service. While imagery absolutely satisfies the second part of this definition, we will see that it is far from standardized, or interchangeable. In short, no,satellite imagery is not a commodity.

Read More
GIS and Being A Conservation Planner

GIS and Being A Conservation Planner

by Daniel ODonohue 5 min read

GIS and the environmental and conservation fields have had a love affair since the beginning. Maps provide the perfect medium for communicating changes in the landscape to stakeholders, making GIS a solid investment for a conservancy looking to maximize their impact. 
Read More

Open Drone Map, podcast about mapping drone software

Open Drone Map

by Daniel ODonohue 7 min read

OpenDroneMap is an open-source application with the goal of making it more accessible to process, view, and manipulate aerially collected imagery cohesively
Read More
First job in GIS geospatial , early stage GIS geospatial professional

Being an Early Stage GIS Professional

by Daniel ODonohue 6 min read

GIS is a wonderfully flexible field in that it encompasses applications in many other fields. For those that wish to get their foot in the door, it is invaluable to begin preparing early.
Read More

MapStore, podcast episode about open source geospatial products

MapStore

by Daniel ODonohue 5 min read

MapStore is a front-end, open-source, client-side web GIS application. It can be described as both a product, and a framework.  As a product, it can be used out of the box to perform analysis, and create visualizations, geoportals, dashboards, GeoStories, and web applications sourcing data from your preferred geospatial server.
Read More
GIS geospatial freelancer, starting your own GIS geospatial consultancy

Starting Your Own Geospatial Consultancy

by Daniel ODonohue 6 min read

Ditching the predictability and security of full-time work is a truly intimidating step for professionals of any industry. A venture into the unknown. For some though, the risk is worth the independence and flexibility they come to enjoy in their work, and home lives. While the idea of not having a boss, or a set 9-5 schedule is appealing to nearly everyone, this does not mean that the remaining responsibilities of self-employment are for everyone.
Read More

Streamable Geospatial data, GIS geospatial podcast

Streamable Data And Geospatial Web Applications

by Daniel ODonohue 6 min read

The introduction of the web browser as a geospatial tool has become less of a novelty over the years, and for good reason. High-speed internet coverage has increased and spread across the globe, allowing more people than ever to access quality geospatial information and processing with minimal taxing of machine resources. 
Read More
PDAL - Point Data Abstraction Library

PDAL - Point Data Abstraction Library

by Daniel ODonohue 8 min read

To put it simply, point clouds are a collection of XYZ points that represent some real world object of nearly any scale.They can be generated in a few ways. As geospatial scientists, we mostly work with LAS/LAZ data collected by aerial LiDAR (light detection and ranging) scanners at varying scales, from landscapes, down to project sites. We may also derive point clouds from highly detailed orthoimagery of an area, such as from the products of a drone flight. 

Read More

geospatial data science, a career in data science

Being A Data Scientist

by Daniel ODonohue 12 min read

As a data scientist, you don’t just go in and solve problems. You make recommendations to multi-faceted issues so that you get a fantastic model in the end. You’ll also be advocating a better use and understanding of the data while you do that.

Read More
Geospatial podcast episode introducing Geoserver - tutorial

Geoserver

by Daniel ODonohue 14 min read

It’s an open source product developed in Java, using enterprise Java architecture, that allows you to take your geospatial data (shapefiles, special DBMS like post GIS) and publish it to the web. You get good-looking maps or other types of services where you can directly access your data.
Read More

Urban Estimation, Earth Observation and Deep Learning

Urban Estimation, Earth Observation and Deep Learning

by Daniel ODonohue 13 min read

Interferometrics, or InSAR, is taking stacks of radar data and looking at it over a certain timescale and seeing how the slight changes in elevation occur. It’s used for subsidence analysis and for understanding when there’s a risk — karstification or possible landslide. It’s looking at where there are minor changes in the movement of the Earth’s surface.
Read More
Being A Graduate Geospatial Consultant

Being A Graduate Geospatial Consultant

by Daniel ODonohue 11 min read

Some people might say that GIS is not a profession. I’d sayit’s like a toolkit; we use and apply it to different industries — a geographer might use it to do a map or analysis, for example. Once you have a toolkit and the skills, you candevelop them to be adaptable.The opportunities in the future are endless. You can do anything you wanted to.
Read More

An Introduction To Artificial Intelligence for GIS and Geospatial people

An Introduction To Artificial Intelligence

by Daniel ODonohue 17 min read

If you think AI solves every problem, then you’re overestimating its utility and where we’re at. However, on the other side, if you’re a business of any size, operating at least some type of technology, and you think AI can solve none of your problems — you’re also mistaken.

Read More
Being Visible In The Geospatial Community

Being Visible In The Geospatial Community

by Daniel ODonohue 9 min read

 The first couple of criticisms I received were hard to take and difficult to comprehend. Especially when they were not a critique of a particular fact, but more on personal opinions, such as “I don’t believe in the future you envision,” or “It’s not as rosy or complicated as you envision it.” When you hear such thoughts as an early-stage professional, you can’t help but feel imposter syndrome. You wonder if you’re out of your league? Are you talking about things you should not be talking about?

Read More

GDAL - Geospatial Data Abstraction Library. GIS / Geospatial podcast and blog

Geospatial Data Abstraction Library - GDAL

by Daniel ODonohue 18 min read

GDAL stands forGeospatial Data Abstraction LibraryYou will find people pronouncing it variably asgee-dal, orgoo-dle. I come back to goo-dle frequently because it trips off the tongue a little more easily than gee-dal.Goo-dle was the original pronunciation. The founder of the GDAL project pronounced it goo-dle for many years. When he stopped being the maintainer of the project, he took a job with Google and found it difficult to say he worked at Google and was the founder of the GDAL project. 

Read More
Counting Animals Using Satellite Imagery

Counting Animals Using Satellite Imagery

by Daniel ODonohue 15 min read

Commercial imagery resolution is down to 30 centimeters.With modern interpolation techniques, you can produce images with a 15-centimeter resolution equivalent. You canidentify features in pastures that otherwise would not have been visible. Counting livestock is important on several levels — for animal disease control and for inventory.

Read More

Access to spatial data, geospatial podcast for spatial people

Access to spatial data - making room for unexpected contributors

by Daniel ODonohue 18 min read

Are we making data available to those unexpected contributors? And are we making it available at a resolution sharp enough or high enough for the Dr. John Snows to have found that well?
Read More
Geospatial innovation

Geospatial Innovation - what it might look like

by Daniel ODonohue 12 min read

The applications of the satellite systems are endless and we separate them into different market segments. For example,agriculture,location-based services (mainly phones),transport usages (navigation on roads, rail or maritime), andaviation (landing procedures heavily rely on EGNOS).Thegeomatics market is important; it’s a segment that’s usually the first adopter because they need the highest precision locationing.

Read More

Super Resolution - smarter upsampling

Super Resolution - smarter upsampling

by Daniel ODonohue 13 min read

Super-resolution originates from the computer vision domain.The quality of an image is defined by its resolution. Super-resolution gives you a better image by applying an algorithm — to get a higher resolved image. It’s like upsampling, just smarter.

Read More
OpenStreetMap GIS geospatial mapping communities

OpenStreetMap is a community of communities

by Daniel ODonohue 11 min read

OpenStreetMap is so much more than a map and a database — it’s a global community of mappers. A while ago, OSM passed a significant milestone — the 100 millionth changeset was uploaded to it.This milestone represents a collective contribution of nearly 1 billion features globally in the past 16 plus years by a diverse community of over 1.5 million mappers.
Read More

Open geospatial standards, open GIS data formats

Open Geospatial Standards

by Daniel ODonohue 11 min read

Geospatial standards, like any standard, are what we agree on as a community. It’s a way to describe how we model geospatial data, exchange it, subset it, process it, visualize it, or reference it. We need standards because we share and integrate data, and we solve complex problems.

Read More
Google earth engine, an introduction for earth observation scientists, remote sensing and geospatial people

Introducing Google Earth Engine

by Daniel ODonohue 15 min read

Google Earth Engine is acloud computing platform for scientificanalysis andvisualization of geospatial data sets. It isfree to use for research, education, and nonprofit. Google Earth Engine is essentially streaming data. You don’t need to go online to download the data — you just need a browser, and you can access the entire Google Earth Engine data catalog and a bunch of tools to do the analysis and visualization.

Read More

Geospatial career path, job path in GIS and Geo

Getting Where You Want To Go In Your Geospatial Career

by Daniel ODonohue 12 min read

Coaches ask questions framed to help you clarify your own mind and come up with your own solutions and ideas. It’s powerful because, as the studies show, if you help anyone generate their own ideas and solutions, they’re more likely to implement them and succeed at them.

Read More
Scanning The Earth's Surface Before Its Too late

Scanning The Earth's Surface Before Its Too late

by Daniel ODonohue 12 min read

One of those light bulbs appeared over the top of my head. This is like a microcosm of what’s happening globally with the climate crisis and dramatic earth system changes. We have a limited time to record the Earth as it exists now for future generations. I realized we could use LIDAR to create a permanent digital record of what the Earth’s land surface looks like today to preserve it for future generations.

Read More

Introduction to Synthetic-aperture Radar (SAR) earth observation and remote sensing

Introduction to Synthetic-aperture Radar SAR

by Daniel ODonohue 18 min read

 

Instead of one long antenna that sends one big pulse at one time and then collects the pulses that come back, SAR have a much smaller antenna that sends lots of pulses in quick succession over time as the satellite goes through space.It “listens” to the pulses that come back to it when it moves through its orbit.That’s why the name synthetic is applied to the radar.

Read More
From GIS Analyst to Software Engineer, programming for GIS analysts

From GIS Analyst to Software Engineer

by Daniel ODonohue 17 min read

I liked the geospatial component of things. I enjoyed solving a problem and then seeing the result. It wasn’t just a Microsoft Excel model or some database table. It was something I could visualize in GIS software. If there had been a path to becoming a more in-depth GIS analyst at this company, I might have stayed on it.

Read More

4d voxel model of the world, building a digital twin of the planet

Building a 4D Digital Twin of the Planet

by Daniel ODonohue 14 min read

What is a voxel?. It’s a 3D volumetric pixel, a cubeBut voxels are nothing new. They’ve been used extensively in two key areas within computing. Computer games render worlds and use voxels instead of polygons. Minecraft is a good example — it’s a voxel rendered world. Gaming companies love voxels for their multi-resolution capability over polygons. Robotics uses voxels for image processing to reduce the size of LIDAR point clouds and to create small dynamic maps — or what we call VOG (Voxel Occupancy Grid) — for robots.

Read More
GIS Skills, leadership and mentorship in the geospatial community

GIS Skills Leadership Mentorship and the Geospatial Community

by Daniel ODonohue 15 min read

Geospatial experts need to have a wide variety of skills. They have to link up with other systems and understand those other systems, like Tableau. It’s not enough to know your desktop or application. How will they interface with the other systems and integrate into the greater enterprise system?

Read More

Navigating The Past, Present And Future Of GNSS

Navigating The Past, Present And Future Of GNSS

by Daniel ODonohue 11 min read

Satellites are getting better, and the number of constellations is increasing. Still, many people are not using GNSS terminology — they call it GPS, which is the American GNSS.There is Galileo (European), GLONASS (Russian), or BeiDou (Chinese). Back in 2000, there were 40 GNSS satellites. Fast forward to 2021, and we now have over 100.

Read More
Mapping the ocean floor, seabed 2030

Mapping The Ocean Floor

by Daniel ODonohue 16 min read

Most of the data seafloor bathymetry data — it’s from inversion from gravity. They measure gravity, rather ingeniously, using satellite altimetry and looking at the slope of the sea water’s surface. Imagine a flat chunk of ocean with a perfectly flat sea bottom. If you stick a sea mountain on the bottom, gravity pulls the water a little closer to it, and there’ll be a little hill of water sitting over that sea mountain.

Read More

Being A Professional Geographer

Being A Professional Geographer

by Daniel ODonohue 14 min read

There is a distinction in GIS between the people who use the tools with their knowledge and the people who develop those tools with a view on how the client will use them. I started out developing GIS products and environments for people and professionals to use.  Then, I became more interested inwhy they used that data andhow they were using my tools in those ways.

Read More
geospatial augmented reality

geospatial augmented reality

by Daniel ODonohue 15 min read

Figuring out the viewpoint of the camera is a big part of augmenting reality. The camera has six degrees of freedom.The first three are straightforward — xyz coordinates. Or latitude, longitude, and elevation. Those give you a point in space.For a camera we also need to define the Euler angles — the yaw, the pitch, and the roll — especially if we care about what the camera is pointed at.This is the full six degrees of freedom state, also referred to as the pose.

Read More

Satellite-based Augmentation System, GPS base station in the sky

Satellite-based Augmentation System - A base station in the sky

by Daniel ODonohue 14 min read

SBAS stands for Satellite-Based Augmentation System to standard GPS or GNSS signals. It’s a service that improves the quality of positioning from GPS — from multiple meters down to sub-meter level.SBAS uses similar technologies to other high-precision correction services people might be familiar with. It leverages an entire network of continuously operating reference stations around the ground area.

Read More
Openlayers - Geospatial JavaScript

Openlayers - Geospatial JavaScript

by Daniel ODonohue 9 min read

OpenLayers is a fully grown-up programming language. It runs both in the client and on the server, such as when you visit modern websites where you can edit documents or spreadsheets.
Read More

Why start a geospatial podcast?

Why start a geospatial podcast?

by Daniel ODonohue 9 min read

I got introduced to GIS and Earth observation (or remote sensing), which honestly, I hated. I took a few classes but couldn’t warm to it. Still, I had to pass the semester. As I was preparing for the exams, going through my notes, reading the required reading—slowly but surely, the usefulness of it all dawned on me
Read More
GRASS GIS probably doesn’t get the attention it deserves

GRASS GIS probably doesn’t get the attention it deserves

by Daniel ODonohue 10 min read

GRASS isnot limited to academia. It’s for anyone who needs simple to complex geospatial processing in whatever format or data model—raster, vector, 2D, 3D, and time series.  Awide variety of businesses are using GRASS for data extraction, and provision of conclusions or analysis on top of extensive data.
Read More

Machine learning and object detection for the rest of us

Machine learning and object detection for the rest of us

by Daniel ODonohue 9 min read

You train a detector by teaching the machine learning model what you’re looking for by giving it examples. You give examples and see how it does. If it doesn’t do well, you give it more examples. You iterate until you get good enough results.
Read More
Raster Frames, spatial imagery in apache spark

Raster Frames - Making imagery a first class citizen of apache spark

by Daniel ODonohue 12 min read

Commercial satellite providers produce somewhere between 100 and 200 terabytes of imagery a day ̶ a monstrous amount of information. Sentinel 2 has five years of daily refresh data. We have 40+ years of Landsat data. It’s a massive amount, particularly in the temporal dimension, where you can do longitudinal studies. Apache Spark and Raster Frames might just be the tools we need to handle this much data.

Read More

GIS education and training

GIS education and training, online and in-person

by Daniel ODonohue 11 min read

With the open data movement, there’s an ubiquity of data. We can let students pick their own data on topics that interest them. They find their own data for a geographic area they’re interested in, perhaps where they live or where they’d love to travel. They make connections to their own interests and lives. The more they’ll see the relevance of what they’re learning, the more they’re motivated.

Read More
cloud detection

cloud detection

by Daniel ODonohue 9 min read

The biggest value you get from satellite images is that you can see what’s on the ground. If there is too much water vapor in front of the satellite imaging sensors, it obscures the Earth’s surface, and you might lose all value of the platform.
Read More

Open source GIS business, QGIS geospatial software

Business Built On Open Source GIS

by Daniel ODonohue 10 min read

WHAT IS OPEN SOURCE SOFTWARE? It’s software thatshares the actual instruction code, and the binary you run on your computer. There are different versions and variants of how that sharing happens. Essentially, you get access to the underlying recipe of the software. You can modify it and adapt it for your needs. This episode is all about building a business based on open source GIS software.

Read More
location Privacy and Data Ethics

location Privacy and Data Ethics

by Daniel ODonohue 8 min read

On one side, we have the promise of personalization of being seen and understood, provided we share our data about how we interact with the world. That data can be used to make things better. On the other side, we risk being exposed or being manipulated and treated like a product instead of the customer. In terms of data privacy, location plays a massive role. We, the geospatial community, play a role in this conversation.

Read More

Communicating with maps - The art of cartography

Communicating with maps - The art of cartography

by Daniel ODonohue 9 min read

Artists, mathematicians, and scientists think about their work as a structure that already exists. Their job is to chip away at the detritus. They clear the noise and the content that distracts. They dig up the bones of a fossil and work on revealing a structure that’s already there.

Take Michelangelo, who, by his own admission, was onlyfreeing David from the surrounding marble.

Mapmakers let the geographic content ̶ the data and the layers ̶ communicate.

Read More
Self Employed In The Earth Observation Sector

Self Employed In The Earth Observation Sector

by Daniel ODonohue 15 min read

If you're going freelance or self-employed in the earth observation sector, then youneed to have confidence in yourself and your ability to deal with the things that might get thrown at you. Its also important to remember that your confidence will increase with time.
Read More

Spatial SQL - GIS without the GIS

Spatial SQL - GIS without the GIS

by Daniel ODonohue 15 min read

What is SQL? - It's a structured query language. Putting it into terms of the history of languages, it's a language to query language. It's what computer scientists call a fourth-generation language.
Read More
Elastic Search

Elastic Search

by Daniel ODonohue 9 min read

What Elasticsearch can do for geospatial users, How it’s different from Postgres? Who should use it? Why it’s a special subset of NoSQL databases? All these answers and more i this episode of the MapScaping Podcast!

Read More


1 2 3 Next