Harel Dan: “There’s no reason not to share your work and ideas with the geo community”

Harel Dan
Harel Dan
Harel Dan is a GIS and Remote Sensing analyst based in Israel, and the GIS Coordinator at HaMaarag - Israel's National Nature Assessment Program. Twitter / Website


Q: You’re the GIS Coordinator at HaMaarag, Israel’s National Nature Assessment Program. What is HaMaarag, and how does GIS factor into the program?

A: HaMaarag is a consortium of organizations that manage open landscapes, that was set up to provide evidence-based knowledge to managers and decision makers. We run several long-term projects that take place all over the country, in varying biomes and their ecotones, from evergreen Sclerophyllous woodlands to hyper-arid shrubs, monitoring several classes like Mammals, Birds, Reptiles, as well as vegetation. As such, the entire process of planning out, sampling and analysing the data is dependent on locations. Be it precise measurement of monitoring plot corner pegs with GPS, or creating spatially-balanced sampling methods. My job also entails collecting and processing spatial data from other organizations, with their peculiarities and errors.

Q: You do a mix of technical work, coordination with other agencies, and field work. That sounds like an interesting mix – could you describe a typical day in the life?

A: 6:00 AM, Phone rings, ornithologist on the line, asks me to explain to him how to load the background layer to the Fulcrum monitoring app. 8:30 AM, Log on computer, answer email from chief scientist of the nature and parks authority. 10:00 AM, Run the script that scrapes data from that website. 11:45 AM, Finish that map and send it to graphic design. 13:37 PM, Coffee. 14:03 PM, Back in office after wandering around the labs in the Steinhardt Museum of Natural History, where our offices are. 15:00 PM, Finish a call with the Open Landscapes head at ministry of environmental protection. 16:00 PM, Send drone orthos segmentation results to the botanist for assessment. 17:30 PM, Put kids to sleep. 19:00 PM, Goof around on whatever personal project distracts me these days.

Q: Based on your Twitter account and website, it seems you also take on a good amount of personal projects. What do you look for in a personal project? Any favorites you’d be willing to share?

A: My personal projects are a mix of disciplines and topics that on the one hand interest me, and on the other can be used as an excuse or reason to delve into something new; a concept, a programming language, a tool, etc. Furthermore, as a Geographer, I think I can bridge the gap between the analytical aspect and the human story it tells. For instance, over the summer I’ve made and published a constantly-updated map of fire damage in the south. I saw that there was a lack of connection between news reports and the scale of the damage that was creating misconceptions and lack of understanding. So telling this story was a chance to try out new internet tools to help streamline the work and be easy to read and comprehend for the general public.

Q: What inspired you to publish your analysis of SAR data to identify military radars? Were you nervous at all about the sensitivity of the subject matter?

A: I was intrigued by a peculiar image artifact when I was trying to incorporate Sentinel-1 data in my landcover classification mapping, which happened to appear mostly over broad-leaves and coniferous forests. After tweaking a Google Earth Engine script I’ve noticed that these artifacts converged over a single constant source, so I’ve figured out what these were. After a year or so of hesitance, asking around what should be the preferred action, and actually getting in touch with the Army, I had a job interview for a company that does SAR analysis, so I knew this would be a perfect time to publish the story. So with a tongue-in-cheek image alluding to some issues publicising the location of the radars in my country (It was a PNG image I made in MS Paint that read [REDACTED], you won’t believe how many people over-analysed this), I posted my findings on social media.

I got the job btw, but declined to take it as the conditions weren’t manageable from my perspective.

Q: You’ve successfully had your work featured in multiple publications. What advice do you have for other geohipsters out there looking to get more exposure?

A: Hustle. Made something interesting? Think you’re onto something? Post it on social media. If your career is not dependent on the number of publications in peer-reviewed journals, there’s no reason not to share your work and ideas with the geo community, no matter how half-baked they are.

Q: What do you do in your spare time? Any hobbies?

A: I have a garden with some fruit trees that I tend to when it’s not too hot, but other than that, I’m wholly immersed in being a full time parent to two small kids. Whatever spare time I have, it’s used to wind down and relax with techie reading material, or go on twitter and see what others are up to and engage in the war on Shapefile and banter on that other GIS software.

Q: Are you a geohipster? Why or why not?

A: I tick about a dozen or so results in the GeoHipster poll tally, so I guess I’m on the geohipster spectrum, even though I never got into the laptop stickers and pin badges fad. Besides, the backside of my laptop screen has velcro strips which I use to firmly attach dongles, chargers and an external drive full of hoarded geodata to reduce desktop clutter, this way I have room to place old printed atlases, a working sextante, PostGIS cheatsheet… OY MY GOD I’ve just realised I’m a geohipster.

Q: Any final words of wisdom for our global readership?

A: Don’t use Twitter’s Bing-based translation tool, it’s horrendous.