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NV5 Geospatial Blog

Each month, NV5 Geospatial posts new blog content across a variety of categories. Browse our latest posts below to learn about important geospatial information or use the search bar to find a specific topic or author. Stay informed of the latest blog posts, events, and technologies by joining our email list!



Not All Supernovae Are Created Equal: Rethinking the Universe’s Measuring Tools

Not All Supernovae Are Created Equal: Rethinking the Universe’s Measuring Tools

6/3/2025

Rethinking the Reliability of Type 1a Supernovae   How do astronomers measure the universe? It all starts with distance. From gauging the size of a galaxy to calculating how fast the universe is expanding, measuring cosmic distances is essential to understanding everything in the sky. For nearby stars, astronomers use... Read More >

Using LLMs To Research Remote Sensing Software: Helpful, but Incomplete

Using LLMs To Research Remote Sensing Software: Helpful, but Incomplete

5/26/2025

Whether you’re new to remote sensing or a seasoned expert, there is no doubt that large language models (LLMs) like OpenAI’s ChatGPT or Google’s Gemini can be incredibly useful in many aspects of research. From exploring the electromagnetic spectrum to creating object detection models using the latest deep learning... Read More >

From Image to Insight: How GEOINT Automation Is Changing the Speed of Decision-Making

From Image to Insight: How GEOINT Automation Is Changing the Speed of Decision-Making

4/28/2025

When every second counts, the ability to process geospatial data rapidly and accurately isn’t just helpful, it’s critical. Geospatial Intelligence (GEOINT) has always played a pivotal role in defense, security, and disaster response. But in high-tempo operations, traditional workflows are no longer fast enough. Analysts are... Read More >

Thermal Infrared Echoes: Illuminating the Last Gasp of a Dying Star

Thermal Infrared Echoes: Illuminating the Last Gasp of a Dying Star

4/24/2025

This blog was written by Eli Dwek, Emeritus, NASA Goddard Space Flight Center, Greenbelt, MD and Research Fellow, Center for Astrophysics, Harvard & Smithsonian, Cambridge, MA. It is the fifth blog in a series showcasing our IDL® Fellows program which supports passionate retired IDL users who may need support to continue their work... Read More >

A New Era of Hyperspectral Imaging with ENVI® and Wyvern’s Open Data Program

A New Era of Hyperspectral Imaging with ENVI® and Wyvern’s Open Data Program

2/25/2025

This blog was written in collaboration with Adam O’Connor from Wyvern.   As hyperspectral imaging (HSI) continues to grow in importance, access to high-quality satellite data is key to unlocking new insights in environmental monitoring, agriculture, forestry, mining, security, energy infrastructure management, and more.... Read More >

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App Update Check - Coming soon in IDL 8.6 and ENVI 5.4

Jim Pendleton

First, a dose of nostalgia.

In the early days of commercial IDL, new drops of the application occurred when new features were added and as bugs were fixed for important customers. It was not unusual for there to be a couple different releases per month, a release cycle concept not dissimilar to that of most of today's smart phone apps.

The new releases were signaled through an update to a README-type of text file that was available on a node on a computer network called DECNET, shared by many universities and national labs in the days before the internet as we know it today.

At the organization where I worked, I had a nightly batch job that would alert me to the availability of a new version of IDL. It was a highlight of my week when new features appeared in IDL. Yes, I had that sort of a life back then. Frequent updates, from a customer point of view, kept the buzz alive with the products.  

Here we are about 30 years later and this functionality to check for updates is now built into the upcoming releases of both IDL 8.6 and ENVI 5.4. By default, IDL will check once a week automatically for updates when a new session is started.

Additionally, with the click of a single "Help/Check for Updates..." menu button in the IDL Workbench or from the ENVI UI, you can ensure that you, too, are enjoying the freshest and best we have to offer.

If your version is current, you will receive a dialog assuring you all is well.

To check that your ENVI version is current, find the menu item in the main application user interface.

You will need an internet connection to the commercial world for the status check to complete successfully.

Extra "80s-throwback" credit if you use a packet sniffer to find the syntax of the request and write a script that will automatically launch a WGET query each time you start a new IDL session.

Does this new feature signal a return to more frequent application updates? Have we gone back to the future? Only time will tell.

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