Ollie Ballinger @oballinger Twitter profile | Pikagi

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Ollie Ballinger

@oballinger

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Lecturer in geocomputation @CASAUCL . PhD from @ODID_QEH . @Bellingcat tech fellow. Big fan of satellites.

London, UK

https://t.co/howdB2SOut

Joined June 2011

Don't wanna be here? Send us removal request.

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@oballinger

Ollie Ballinger

1 year

New investigation i've been working on for a while for @bellingcat , identifying almost 180 ghost ships loading grain at a sanctioned port in occupied Ukraine. This potentially ammounts to millions of tons of illicitly exported grain.

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@bellingcat

Bellingcat

1 year

New: Bellingcat has been given access to over 140 satellite images showing activity at a Crimean shipping terminal that some reports have claimed has been enabling the transportation of stolen Ukrainian grain by Russia.

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@oballinger

Ollie Ballinger

3 years

Turns out lots of missile defense radars interfere with open source satellite imagery when they're turned on. I built a tool that lets anyone monitor when and where these radars are deployed.

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Radar Interference Tracker: A New Open Source Tool to Locate Active Military Radar Systems -...

Many military radars interfere with open source satellite imagery when they're turned on. A new tool lets anyone monitor when and where these radars are deployed.

www.bellingcat.com

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@oballinger

Ollie Ballinger

11 months

Absolutely apocalyptic scenes of bombardment in #Gaza visible from space yesterday.

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@oballinger

Ollie Ballinger

4 years

@washingtonpost cars so vast they're visible from space

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@oballinger

Ollie Ballinger

3 years

Started at @CASAUCL this week as a lecturer in geocomputation! Excited to officially be a Map Guy

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@oballinger

Ollie Ballinger

1 year

Ships are required by law to broadcast their poisition and identity via the Automatic Identification System. In the image above, only four ships had their AIS turned on. To get around this, i built a tool that uses radar satellite imagery to identify ships

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@oballinger

Ollie Ballinger

1 year

Here's a guide to using the tool. It can be used to monitor maritime activity in situations where AIS is deliberately turned off.

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Peering Beyond the Clouds: A Guide to Bellingcat’s Ship Detection Tool - bellingcat

The Ship Detection Tool is a satellite imaging resource that uses Synthetic Aperture Radar (SAR) imagery to identify ships in port, at anchor or at sea.

www.bellingcat.com

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@oballinger

Ollie Ballinger

2 years

I built a tool to conduct damage assessment in Turkey: Worked with an amazing team the Economist to provide analysis for the story below. It uses an algorithm i've been developing to detect persistent changes in Sentinel-1 imagery.

@TheEconomist

The Economist

2 years

In Kahramanmaras, a Turkish city caught between the two epicentres of the quakes, districts with many tall buildings were particularly vulnerable

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@oballinger

Ollie Ballinger

1 year

Just draw a box over an area of interest, and it will show you the dates a ship was present (and even estimate the length). Here's a fun one where you can spot the sinking of the Russian cruiser Moskva, which used to be docked in Sevastopol

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@oballinger

Ollie Ballinger

1 year

As always, massive thank you to @EoghanMacguire who basically wrote both articles and @obtusatum who made sure the code works!

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@oballinger

Ollie Ballinger

2 years

Did some more analysis for @TheEconomist , this time doing damage detection across Ukraine on the anniversary of the war. Again, here is an interactive tool allowing users to explore destroyed buildings across the entire country:

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Data from satellites reveal the vast extent of fighting in Ukraine

Scars of the war can be found far beyond the front lines

www.economist.com

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@oballinger

Ollie Ballinger

10 months

I’ll be presenting at this! Come along

@bellingcat

Bellingcat

10 months

Want to learn how to carry out Bellingcat-style research? We're hosting an in-person workshop in London on November 20th-24th. Find the details and how to sign up here:

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@oballinger

Ollie Ballinger

3 years

shout out to the OG @HarelDan for making the discovery this tool is based on!

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@oballinger

Ollie Ballinger

3 years

Now have access to 3 sq meters of screen space. Look upon my chrome tabs ye mighty and despair

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@oballinger

Ollie Ballinger

4 years

How has #Lockdown in #London impacted mobility? I made some timelapses using anonymized mobile phone data from @Mapbox showing the massive drop in movement as the first lockdown was put in place:

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@oballinger

Ollie Ballinger

1 year

For those interested in the #Turkeyelections2023 , i've got 10 years' worth of ballot-box level election results i scraped from YSK, geocoded, and visualized here: @canokar @DAcemogluMIT @ragipsoylu

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@oballinger

Ollie Ballinger

4 years

just finished my second week of teaching online not realizing that i have a bookmark called "chicks" with a webcam icon next to it. How do i subtly explain next class that this is a live stream of my chickens?

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@oballinger

Ollie Ballinger

1 year

Had a blast presenting on open source climate data for environmental investigations with @wammezz at #ijf2023 ! You can watch the full workshop here:

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@oballinger

Ollie Ballinger

2 years

A project I’ve been working on for a while is out now as a CSAE working paper! It explores the relationship between droughts, irrigation, and insurgency in Southeastern Turkey. 1/11

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@oballinger

Ollie Ballinger

3 years

Also as always massive thanks to @EoghanMacguire for making this intelligible

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@oballinger

Ollie Ballinger

3 years

Been working on this one with @wammezz for a while now, finally out in @bellingcat ! We use open source data and tools to identify major sources of pollution in Iraq. Spoiler: there are a lot of them.

@bellingcat

Bellingcat

3 years

Iraq has huge oil reserves, but it has also been blighted by rapidly declining air quality & oil pollution in recent years How can open source tools help us monitor these issues & pinpoint who is responsible for pollution? New from @wammezz & @oballinger

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@oballinger

Ollie Ballinger

2 years

Just got back from @glastonbury , completely awestruck by the fact that they just build a city of 210,000 people in a field over the course of a month. Slept, showered, and headed over to @planet to make a timelapse.

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@oballinger

Ollie Ballinger

2 years

Recently got 209 old @NatGeo magazines spanning 1972-2000 (62% complete). Spent last weekend sorting/cleaning/taking out the beautiful old maps

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@oballinger

Ollie Ballinger

3 years

Neat!

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@oballinger

Ollie Ballinger

3 years

If anyone's bored and wants to spot Russian military hardware on the Ukrainian border there are a bunch of interesting signals in 2021 (red dotted lines):

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@oballinger

Ollie Ballinger

2 years

@AkinUnver

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@oballinger

Ollie Ballinger

2 years

And they’re off #CasaTreasureHunt2022 @CASAUCL

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@oballinger

Ollie Ballinger

3 years

Very good to hear BP is looking into carbon offsetting at #COP26 ! Let's have a look at what they're already doing for the planet in one of their largest production countries, Iraq

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@oballinger

Ollie Ballinger

4 years

With #Election2020 tomorrow, we're about to be bombarded with very bad maps. Here's a thread on why most election maps are misleading, and how satellite images of the earth taken at night can help fix them.

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@oballinger

Ollie Ballinger

11 months

New paper out with @wammezz in the International Review of the Red Cross! We look at how the growth in computational power and open-access data can be leveraged to protect the enviornment in conflict zones.

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Leveraging emerging technologies to enable environmental monitoring and accountability in conflict...

Leveraging emerging technologies to enable environmental monitoring and accountability in conflict zones - Volume 105 Issue 924

www.cambridge.org

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@oballinger

Ollie Ballinger

2 years

this is a reAL FIGURE PUBLISHED IN NATURE. The article is actually very good but my god i didnt know we were allowed to use the chad/virgin meme template for research purposes

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@oballinger

Ollie Ballinger

2 years

Live leaderboard in full effect. it's a dead heat #casatreasurehunt2022 @CASAUCL

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@oballinger

Ollie Ballinger

3 years

Had a shift until 8pm yesterday administering the Oxford #AstraZeneca vaccine. It is perfectly effective and safe! How safe?

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@oballinger

Ollie Ballinger

2 years

What the heck is this beam on May 3rd right next to the Azovstal plant in Mariupol? (47.114804, 37.59192) visible in @planet imagery taken at 08:20 (but not at 08:13).

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@oballinger

Ollie Ballinger

3 years

40 cases of blood clots in 17 million people who received the vaccine corresponds to odds of 1 in 425,000. The image below has 424,999 blue pixels and one red pixel. Before worrying about the odds of randomly picking the red pixel, can you even find it?

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@oballinger

Ollie Ballinger

11 months

The epicenter of the explosion appears to be almost directly on top of the Salah Al-Din road, the main evacuation route.

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@oballinger

Ollie Ballinger

2 years

A reminder that ALL @googleearth engine app source code is publicly accessible, whether or not you publish the code itself. Good to keep in mind as people build OSINT tools/projects on Ukraine.

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@oballinger

Ollie Ballinger

3 years

Great combination of our remote sensing work with the voices of communities affected by flaring in Basra

@Independent

The Independent

3 years

How oil fields are poisoning Iraq | @Beltrew

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@oballinger

Ollie Ballinger

4 years

@DLeonhardt virtually every house candidate that supported M4A won, and vice versa. This is incredibly disingenuous reporting.

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@oballinger

Ollie Ballinger

2 years

@JackDetsch @EliotHiggins will be fun to spot it when it arrives. Looks like Poland has turned on a patriot battery near the border with Ukraine, my best guess is that it's at the Rzeszów-Jasionka Airport ;

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@oballinger

Ollie Ballinger

5 years

I urge everyone to go through the state department’s bizarre Instagram feed, which has been posting extremely combative content about Iran non-stop for the past three years

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@oballinger

Ollie Ballinger

2 years

high res imagery for validation

OpenAerialMap Browser

Browse the open collection of aerial imagery.

map.openaerialmap.org

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@oballinger

Ollie Ballinger

2 years

Made a sick gif for the course i'm teaching this fall to illustrate the The Central Limit Theorem. I use individual-level U.S. income data as the "population" (i know. shh).

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@oballinger

Ollie Ballinger

4 years

@airwars @EliotHiggins @CJTFOIR here's what 259 OIR strikes in Raqqa looks like

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@oballinger

Ollie Ballinger

4 years

Everyone knows that regular #election maps are full of huge empty precincts that visually overstate rural vote shares. Here's how the 2016 map would change if we only displayed the vote shares of populated areas:

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@oballinger

Ollie Ballinger

11 months

Planes appear as red, green, and blue dots in satellite imagery because of slight differences in the timing of the imaging of each band. The plane is heading around 70 degrees north.

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Rainbow planes appear in the satellite image taken by SentinelHub.

Hi, There are planes clad in rainbow colors over the sea near Ukraine. Is this normal ? What 's going on here ? What exactly is going on here but I can’t understand. Kind regards, Thank you.

forum.sentinel-hub.com

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@oballinger

Ollie Ballinger

4 years

One thing to watch for tomorrow is how #BidenHarris2020 fare relative to Hillary in these suburban areas early on. I wrote full sentences about this here: You can play around with the maps yourself here:

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@oballinger

Ollie Ballinger

3 years

Interesting find of the day: the Kanarya neighbourhood of #Istanbul is conspicuously missing from google street view at exactly the polygon boundary for the neighbourhood. Wonder why?

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@oballinger

Ollie Ballinger

4 years

Journalists saw the precinct maps (blue coasts, red heartland) and assumed that Trump won thanks to rural voters. It took years for this to be debunked and for people to realize that his main base of support is suburban voters. This is clear in Populated Area Voteshare maps:

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@oballinger

Ollie Ballinger

2 years

Methodology paper is currently under blind peer review for a conference but will share ASAP! Also caveats: accuracy will improve as more imagery becomes available; accuracy for areas with less coverage (northern syria) probably lower than e.g. kahramanmaras

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@oballinger

Ollie Ballinger

4 years

Lets take a closer look at what's going on using Dallas as an example. The precinct map makes it look like #Trump won on the basis of rural votes. When we filter voteshare using nighttime lights, we see that Trump's "rural base" is actually suburban.

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@oballinger

Ollie Ballinger

4 years

Hey @OxfordUnion remember when you had 200 cops beat up students because you wanted to wear tuxedos and Challenge him in the Marketplace of Ideas?

@DrEricDing

Eric Feigl-Ding

4 years

WHAT THE HOLY F*CK?! Steve Bannon calls for the ***beheading*** of Dr Fauci and FBI Director Wray as a warning to federal workers. This video is real. Captured by @peltzmadeline .

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@oballinger

Ollie Ballinger

2 years

1995 issue on the “Information Revolution” foretells the horrors of the zoom meeting and google doc

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@oballinger

Ollie Ballinger

2 years

Some gems: the last map of the Soviet Union (March 1990), and the first map of “Russia and the Newly Independent Nations of the Former Soviet Union” (March 1993). Gorgeous use of transverse polyconic projection

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@oballinger

Ollie Ballinger

4 years

Built a rough tool to assess damage in #Beirut : source code below; commits/comments welcome

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@oballinger

Ollie Ballinger

3 years

Air quality in Iraq is generally abysmal-- major cities constantly blanketed by pollution from flares operated by multinational oil companies:

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@oballinger

Ollie Ballinger

5 years

In case you think your vote doesn’t matter today consider that Kensington flipped by 20 VOTES LAST TIME

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@oballinger

Ollie Ballinger

2 years

Geopolitical analysis from my Turkish mom (her side of the family lives on the Bosporus). We used to wait for Russian navy ships/subs to pass by before jumping in to swim, they made the biggest waves!

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@oballinger

Ollie Ballinger

11 months

Another interesting detail is these three dots which are probably an IAF fighter jet in the air over the location:

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@oballinger

Ollie Ballinger

2 years

thanks to @AinslieJstone @Sondreus etc. for their amazing work on this article!

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@oballinger

Ollie Ballinger

3 years

@sdbernard You can do really cool stuff using the blender-OSM plugin! I used it about this time last year to model the Beirut explosion:

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@oballinger

Ollie Ballinger

4 years

Similar trend in Nevada, where the precinct map makes it look like a Trump landslide even though Hillary actually won the state. Populated Area Voteshare shows that the whole state is mostly empty, and the real battlegrounds were Reno and Vegas

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@oballinger

Ollie Ballinger

2 years

Spooky find of the day-- the defacto standard benchmark dataset for facial recognition studies is full of junk. Working on a paper involving clustering faces across images and was getting weird accuracy statistics...

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@oballinger

Ollie Ballinger

11 months

Want to monitor air pollution from gas flaring in iraq? Detect rare earth mining in Myanmar using AI? Identify oil spills in Northern Syria from space? We run through the data sources and methods you'll need. All open-source.

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@oballinger

Ollie Ballinger

2 years

To answer this question, I collect data on topographical and climatic factors, nighttime lights, infrastructure, tribal control, >3m ballot-box level election results, conflict incidence and insurgent recruitment, and measure irrigation using satellite imagery: 4/11

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@oballinger

Ollie Ballinger

3 years

Likely geolocation of last week's #Russia - #Belarus training exercises: RIT picked up two radar signatures in the West of Belarus, both on Feb 14. Offensive military radar systems were a key component of the 2014 war in #Ukraine . May be worth keeping an eye on Belarus. 1/8

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@oballinger

Ollie Ballinger

2 years

Massive thank you to my supervisor @AdeelMalikOx for his help on this over the years!

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@oballinger

Ollie Ballinger

2 years

For each histogram, I take 10,000 samples of size n from the "population" and plot the distribution of sample means. Even though the underlying population distribution is very skewed, as sample sizes increase the distribution of sample means tends towards the normal distribution!

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@oballinger

Ollie Ballinger

4 years

Broke: aliens built the pyramids Woke: aliens invented WGS84

@davenewworld_2

Fifty Shades of Whey

@davenewworld_2

4 years

The exact coordinate for the Pyramid of Giza is 29.9792458°N and the speed of light is exactly 299,792,458 meters per second. Aliens or time travelers or coincidence?

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@oballinger

Ollie Ballinger

3 years

plt.imshow(KingsCross, cmap=“magma”)

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@oballinger

Ollie Ballinger

4 years

Whats going on here? Using the fact that populated areas are lit up at night, I isolated these areas using nighttime satellite imagery of the earth. More people=more light. This is similar to @kennethfield 's dasymetric map in @NYMag , but retains important spatial info

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@oballinger

Ollie Ballinger

2 years

@ArunFrey @pengzell @MarkDVerhagen When’s the album dropping??

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@oballinger

Ollie Ballinger

4 years

If #Beirut explosion was caused by 2750 tons of ammonium nitrate, it was probably equivalent to between 1.2 and 2.2 kilotons of TNT. ~7-14% the size of Hiroshima

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@oballinger

Ollie Ballinger

4 years

Oxford, "world leader in the fight against climate change", boldly divests from fossil fuels, putting people and planet before profi-- wait a minute

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@oballinger

Ollie Ballinger

2 years

Took a panorama of the March yesterday. @UCU as far as the eye can see ❤️ #UCUrising

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@oballinger

Ollie Ballinger

2 years

@mouthofmorrison Never forget

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The Reinhart-Rogoff error – or how not to Excel at economics

Last week we learned a famous 2010 academic paper, relied on by political big-hitters to bolster arguments for austerity cuts, contained significant errors; and that those errors came down to misuse...

theconversation.com

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@oballinger

Ollie Ballinger

2 years

Stunning picture from the August 1992 issue on Kurds in which Christopher Hitchens spends three months in the mountains interviewing Öcalan, Barzani, and Talabani.

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@oballinger

Ollie Ballinger

5 years

400,000 railway union workers (and black bloc) in the streets of Paris today protesting Macron’s pension cuts #manifestation9janvier #reformedesretraites

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@oballinger

Ollie Ballinger

2 years

With another round of @ucu strikes coming up next week, a reminder from the ghost of Christmas future about what happens when academic labor isn’t organised and casualisation is allowed to go unchecked

@EricDirnbach

Eric Dirnbach ⁉️

2 years

How is this real? "The Department of Chemistry and Biochemistry at UCLA seeks applications for an Assistant Adjunct Professor on a without salary basis. Applicants must understand there will be no compensation for this position."

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@oballinger

Ollie Ballinger

4 years

@jstnbraaten @ImageMagick @GoogleColab @gena_d actually wrote an amazing package that adds timestamps directly in ee! (‘Users/gena/packages:text’) highly recommend

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@oballinger

Ollie Ballinger

2 years

An important caveat: this effect is wiped out in areas with highly unequal land tenure. Areas such as Batman actually see *increased* conflict following irrigation, as rival Kurdish clans compete over a new source of rents 10/11

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@oballinger

Ollie Ballinger

3 years

big shoutouts to @EoghanMacguire for somehow turning this into a coherent article, @gena_d for the awesome date counter module in @googleearth engine, and @sdbernard for documenting his @FT wildfire smoke map which inspired the SO2 figure!

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@oballinger

Ollie Ballinger

10 months

Come work with us!!

@NeaveOClery

Neave O'Clery

10 months

Are you an experienced researcher in spatial data science (broadly defined) with exceptional organisational skills? We have a grade 8 fixed term lecturer opening @CASAUCL to run the dissertation module with guidance from me. Apply by 26 Nov/start ASAP:

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@oballinger

Ollie Ballinger

2 years

lmfao i used the twitter API to download tweets containing the N-word in the past 10 days and surprise surprise!! Number of N-word containing tweets per hour increased >10x since elon tweeted "the bird is freed"

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@elonmusk

Elon Musk

2 years

the bird is freed

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@oballinger

Ollie Ballinger

10 months

@trbrtc In case any are interested in more advanced satellite imagery analysis!

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@oballinger

Ollie Ballinger

5 years

@CDCgov i believe i have made an important discovery

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@oballinger

Ollie Ballinger

2 years

If LaTex error messages were more informative we would have cured cancer by now.

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@oballinger

Ollie Ballinger

5 years

@SimuChigudu @terrefebiruk @ezraklein @CHAPOTRAPHOUSE I too wish they were longer

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@oballinger

Ollie Ballinger

2 years

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@oballinger

Ollie Ballinger

3 years

Here's an optical timelapse of flares west of the city

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@oballinger

Ollie Ballinger

2 years

More caveats: Is industrial monoculture farming sustainable? Is flooding villages and heritage sites good? Can the PKK simply be irrigated away? No. Is shielding Kurdish farmers from drought a better strategy to win hearts and minds than setting villages on fire? Probably. 11/11

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@oballinger

Ollie Ballinger

5 years

Buttigieg won more counties in Texas than @ewarren .

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@oballinger

Ollie Ballinger

1 year

@auonsson @ElsevierConnect Zotero is open source and imo wayyy Better than mendeley ever was!

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@oballinger

Ollie Ballinger

4 years

@wammezz I made a GEE app a while back that puts VIIRS/S2 IR/S2 NC together to spot/verify burning wells: . may be of interest! Here's the full blog post about IS attacks on oil infrastructure:

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@oballinger

Ollie Ballinger

2 years

I estimate the impact of irrigation on conflict using two sets of models; a cross-sectional instrumental variables approach exploiting exogenous topographic variation in the placement of irrigation schemes, and spatial panel models that rely on the timing of irrigation. 5/11

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@oballinger

Ollie Ballinger

3 years

@MapMakinMeyers been looking through your open data catalogue, amazing work! I've got some village-level shapefiles for Pakistan kicking about if you want em:

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@oballinger

Ollie Ballinger

2 years

@CarmenCabArn The key is to run at least 15 minutes over time. Hold them hostage.

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@oballinger

Ollie Ballinger

2 years

is halal

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@oballinger

Ollie Ballinger

4 years

@a_vallay Bad vobs

@peterdaou

Peter Daou

4 years

OBAMA DEFEATS TRUMP On deportation numbers. (via @jacobsoboroff @kishineff )

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@oballinger

Ollie Ballinger

3 years

@_RHResearch @sophiecdyer @sashacakes @ConversationUK @RoyalHolloway @RHULGeography @andymaclachlan new workshop idea for RS??

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