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The AccessDPRK blog is dedicated to exposing North Korea via satellite imagery. Discussing domestic, economic and military locations and helping to uncover this hermit kingdom.
2020 brought three typhoons and massive flooding to North Korea. The combined effects of typhoons Bavi, Maysak, and Haishen destroyed large numbers of homes and thousands of hectares of farmland. The scale of the recovery efforts redirected labor and material away from large national projects like the Pyongyang General Hospital and the Tanchon Hydroelectric Project.
With a 2020 estimated population of 39,000, the city of Yonsa sits among the Hamgyong Mountain Range and is bisected by the Yonmyonsu River as it flows toward the Tumen River. This gives the city a beautiful natural landscape, but also places it at risk for floods.
In 2016 major flooding occurred along all of northern North Korea, affecting over 600,000 people and even damaged the important border cities of Hoeryong and Mansu.
Yonsa was one of the places affected by the flooding. The river spilled its banks and destroyed the stadium, damaged the earthen flood barriers that line the riverbanks within the town, and caused other damaged along its whole course (mostly flooding farmland).
Prior to the flood, the Yonmyonsu River and its Kuunsu River tributary joined together at the terminus of a long peninsula. After the flood, that peninsula had been severed and became an island 1.58 km long and 100 acres in area. The confluence now happens at the southern end of the island instead of the northern point of the former peninsula.
In response to the damage, the authorities used the event to rebuild large parts of the town and to build more modern apartment blocks. The new island was left detached, but work was done to shore up its defenses and rebuild destroyed properties.
The apartments were constructed in two sections of town. Twelve were built in the "downtown" area and on the northern end of town, on the east bank of the river, thirteen other apartment blocks were built. These, along with seventeen other multi-family homes were constructed where a large neighborhood once stood, comprised of scores of small one- and two-family dwellings.
Several other apartments and homes were built up and down the river valley. On top of this, over 10 km of new and repaired flood barriers were built, including around the new island. Unfortunately, when their first major test came only three years later, they failed spectacularly.
Fast-forward to the 2020 Typhoon Season. In rapid succession, the country got hit by the remains of typhoons Bavi, Maysak, and Haishen. Taking a page out of his grandfather's playbook, Kim Jong Un could be seen traveling the countryside and guiding rebuilding projects.
Some of the damage to Yonsa included half of the marketplace getting washed away, the railway bridge was broken, the flood barriers built after 2016 were breached in multiple places, and 44 acres of a cooperative farm and forest management facility were flooded. Additionally, some of the apartment buildings constructed after the 2016 flood were close to having been washed away; their lower floors likely needing some repair.
While Yonsa was one of the damaged cities, Kim didn't visit. Nonetheless, clean-up and rebuilding efforts began almost immediately.
On the Oct. 27, 2020 Google Earth image, four-five dozen family homes can be seen being constructed across the southern riverbank. More work has undoubtedly taken place since then. The question is, will the new work survive any better the next time it floods than before?
One bit of very good news is that despite two large flooding events, the Sinyang Dam 10.2 km upriver, never failed. If it had, the release of its 448-acre reservoir (at least 16.3 million gallons) could have destroyed far more of the town, plus all the small houses that line the riverbanks on the way to Yonsa.
Whether or not any storm or set of storms can be attributed directly to climate change is up for debate. What isn't debatable is that the long-term impact of a changing climate is more extreme and less predictable weather. If the three relatively mild storms (none were greater than Category 1 when they hit the country) can cause so much damage that it disrupts activities going on nationwide, North Korea needs to begin planning for even worse catastrophes in the future.
In the meantime, Yonsa's small stadium has never been rebuilt.
I would like to thank my current Patreon supporters: Amanda O., Anders O., GreatPoppo, Joel Parish, John Pike, Kbechs87, Planefag, and Russ Johnson.
--Jacob Bogle, 1/23/2021
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This past year has been challenging for just about everyone in one way or another, but thanks to your continued readership and for the support of my Patreon supporters, the AccessDPRK project was able to carry on and have another good year.
Quick Overview
For 2020, I was able to write 24 articles for the project and discuss over 200 analyzed images on Twitter. The AccessDPRK site now has 121 published posts representing 759 pages worth of material. While the blog has been around since 2013, nearly 33% of all traffic to it has been from 2020. Traffic growth from 2019 to 2020 was up 81% as well.
Some social media stats include over 420,000 impressions on Twitter and the addition of 331 new followers. That's three times the number of gained followers in 2019. The project's Facebook page is also slowly growing.
This year's most read article was "North Korea's Underground Navy", closely followed by "Wollo-ri: Much Ado About Something". The article on underground naval facilities also caught the attention of media and was discussed in the International Business Times, Radio Free Asia, and others.
I was also able to make my contributing debuts to 38 North, Asia Times, and National Interest this year.
Lastly, for the third year in a row, RAND Corp. used information from this project to help create one of their reports. For 2020, it was North Korean Conventional Artillery: A Means to Retaliate, Coerce, Deter, or Terrorize Populations.
AccessDPRK 2021 Map
The biggest thing to happen since 2017 was that I completed the mapping process for the upcoming 2021 map. The map will be published in two versions, a Free version and a Pro version.
The Free version will have over 60,000 places marked and will be the most comprehensive map of North Korea ever freely released to the general public.
The Pro version (which will need to be purchased) will have over 1,500 additional sites including detailed maps of North Korea's missile bases and prison camps, hundreds of kilometers of former and new railway, suspected military bases, and more. There will also be a lot of added information throughout the file. I want it to serve as a kind of "one-stop shop" for English-language information relating to North Korea.
To accomplish this, there will be scores of links to relevant information from reputable think tanks, news organizations, NGOs, and others. Part of that task will also be the addition of links from AccessDPRK articles in the various placemarks. For example, the marker for KPA Farm No. 1116 will have a link to the AccessDPRK article about the farm, simplifying research. The same will be done for every mapped site that I have written about.
Related information from CSIS, Arms Control Wonk, 38 North, NK News, CNN, etc. will all be included where necessary.
The Pro version will also have construction dates and other details added to well over a thousand other sites. Cell towers, dams, military bases, new housing developments, mines, etc. will have these extra bits of information when and where I can find them.
I am still considering pricing for the Pro version. I want to make it as accessible as possible, so I may offer the full version but also allow people to purchase item categories themselves. There are over 80 specific types of places mapped. If someone is only interested in the country's electrical grid, then it makes sense to let them purchase those individual files instead of having to buy the entire KMZ map.
I have some extra work left to do to split up the two versions, so I am not sure when I will officially publish the maps, but it will be no later than March. I'll make a separate post giving all of the details.
Finally, I want to mention that Open Nuclear Network reached out to me a few months ago and was able to acquire an early copy of the full map. It's because of their interest that I was able to speed the process up considerably in completing the mapping portion of the project.
Looking to 2021
With the map basically finished and soon the be released, it's time to set new goals.
I already have a few smaller mapping projects in mind that will extend to things like geographic features as well as human structures, but I will mostly be focusing on mining the now completed database for new areas of research and new things to write about.
There's also dozens of places of interest that I will continue to review, as well as keeping up with any new developments elsewhere in the country and news stories. There will definitely be continued posts on here as well as articles written for other sites.
Additionally, I plan to start branching out from North Korea and begin work on China and Iran. I won't be making giant maps like the one for North Korea, but they will cover various military infrastructure and important economic developments. While creating the DPRK map was largely a personal project of mine, I would be happy to work with others already working on Chinese and Iranian matters.
I can announce that the biggest single project for the foreseeable future will be: working on a book! I plan to take much of 2021 to research the book and do some initial work on it. That'll mean needing to buy lots of books, access journals, and digging into various archives. I've had the idea for a book for a few years, but I wanted to finish the primary mapping work before beginning the book work.
I am going to keep the topic a little secret for now, but I will say that it is often brought up when writing about North Korea, but rarely do people go into detail about something that touches on so many aspects of the country.
Patreon
I set up a Patreon account in 2020 and have gained some great supporters. Currently, you can help support the project for $3, $5, $10, $15, and $20 monthly, each coming with their own rewards.
I am constantly thinking about new rewards to add, one of them being that I am working on a kind of virtual tour of the country. But you can already get early access to new articles, monthly digests, you can have me analyze places you're interested in, and get access to exclusive datasets. Plus, blog and Twitter mentions for any support at $3 or more.
If you believe in sharing facts-based information with the public about all aspects of North Korea (defense, culture, economy) as well as China and Iran (upcoming), please think about helping out. Every dollar really does help make this possible.
With that, I want to give a huge THANK YOU to my current Patreon supporters: Amanda O., Anders O., GreatPoppo, Joel Parish, John Pike, Kbechs87, Planefag, Russ Johnson, and ZS.
And I want to wish everyone a wonderful upcoming year.
The Demilitarized Zone that separates the two Koreas is a bit of a misnomer. The super thin strip of land 4 km wide was created as part of the 1953 Armistice and aimed to keep both militaries apart and to create a safe, clear buffer zone. However, immediately on either side of the DMZ lies the bulk of both nations' armies.
And while the United Nations' stipulated boundary (on paper) hasn't really changed over the years, the physical boundary itself has (as defined as the fences both sides use). Indeed, the path of the electric fence that runs for 250 km across the peninsula has changed more than once, and the small guard huts are constantly being built, torn down, relocated, and then moved again.
The effective border between the two countries is a line drawn in the center of the DMZ called the Military Demarcation Line. On each side of that is a narrow "no-man's land", penned in by the inner row of fences, and then a second line of fencing about half a kilometer from the first. This is supposed to create the 4 km-wide demilitarized zone, roughly 2 km on the north side of the MDL and 2 km on the southern side. However, the actual real-world width can vary considerably as both sides have tried to take advantage of the hilly terrain. In some places from the second line fence in North Korea to the second line fence in South Korea, the distance is 3.5 km, while in other spots it's nearly 6 km.
This variation in the "practical" DMZ has led me to use a line that's roughly 4 km from the MDL to serve as the DMZ zone of immediacy. This isn't the 4 km of official DMZ width, but 4 km starting at the MDL and moving north into North Korea.
The zone of immediacy not only includes the truly demilitarized no-man's land, but also the rows of guard towers (which are manned by soldiers), and numerous artillery and other military positions that form the country's first line of defense as a clearly connected set of military sites that stand apart from other defensive lines farther inland. It is within the DMZ-proper and the zone of immediacy that this article covers.
CHANGES TO DMZ FENCES
While the demarcation line doesn't change and the official layout of the DMZ doesn't either, the practical boundaries are created by two rows of electrified fences. The fences are guarded by hundreds of observation posts and even have machine gun nests constructed along the entire length of the DMZ; roughly one every 60-100 meters. Of course, those positions aren't manned and would only be used during a conflict.
Over the decades, the fence positions have been modified to take better advantage of the terrain and to allow for the best defensive posture while needing the fewest resources. One of the most recent examples of this is a 660-meter stretch at 38.065069° 126.847214°. It was built in late 2018-early 2019 and adjusts the fence's path slightly to the north. The original anti-tank ditch still exists but the old fence has been removed.
An example of a planned change that was never carried out can be found at 38.355133° 127.592494°. Sometime prior to 2007, the regime cleared a path 1.3 km long and ~12 meters wide along a hillside. They also dug machine gun emplacements. However, they never completed the new fence, and today the original fence remains while the 2007 path and emplacements sit largely unused; although, it does appear to have been kept clear of new brush growth.
One of the largest changes in recent years actually lies at the end of the official DMZ and at the beginning of the Northern Limit Line, the maritime boundary between the two countries. The DMZ itself ends south of Kaesong, as the Han River and its estuary form a natural boundary. But both sides have those coastlines heavily fortified as well, and the double line fencing system carries on for another 53 km, until it reaches the Ryesong River.
That fencing originally ended at a pier on the river at 37.925110° 126.393169°. Around 2013, however, the regime extended one line of fencing up the river for a further 3.4 km. It now ends at a small mining village located at 37.952588° 126.392990°. The rest of the country's coast is fenced off as part of an anti-migration barrier.
CHANGES TO OBSERVATION POSTS
In 2018, North and South Korea demolished ten guard posts each on their respective sides of the DMZ as a show of good faith during a period of diplomacy. This was the first time such an action had been taken and it was met with widespread international praise.
Unfortunately, as has happened for decades, each time the two sides try to work together, the diplomatic efforts quickly wane and grand schemes for cooperation and peace fade as new cycles of provocation begins again.
While the destruction of the posts may have been the most public demonstration of guard posts changing (either being removed or built), it happens fairly regularly as part of routine DMZ "maintenance," as each side finds better spots to place new posts, removes redundant ones, etc.
In the 2021 version of the AccessDPRK map, I was able to locate 544 stand-alone observation posts along the DPRK side of the DMZ. These small positions are usually manned by 2-3 soldiers, keeping an eye out for any unusual activity coming from the other side and to stay alert for any North Korean soldiers attempting to cross and defect. At least 18 new posts have been constructed since 2015, including at least four that were constructed during or after the joint demolition of guard posts in 2018.
Examples of this newer construction is a guard post that was built in 2018 at 38.344391° 127.593518° and one that was built in 2019 at 38.323211° 127.461832° (pictured below).
HARDENED ARTILLERY SITES (HARTS)
By some estimates, North Korea keeps 60% of its artillery deployed within 100 km of the DMZ. But over the years, the disposition of that artillery has changed. Their deployments, types, and numbers have all varied over time. Of particular concern is their hardened artillery sites (HARTS).
These medium and long-range artillery positions are very often hidden behind hills or are otherwise obscured from direct line-of-sight (known as defilade) and can hold some of North Korea's largest artillery systems, including self-propelled guns and multiple rocket launchers (MLRs).
Within 100 km of the DMZ are at least 608 identified HARTS locations, each with multiple artillery pieces. (This figure agrees with the higher-end estimates noted in public sources). Between 2009 and 2017, 126 new locations were constructed, representing 20.7% of all HARTS in the region.
Almost all of these new sites are within 10 km of the Military Demarcation Line and several are within the zone of immediacy.
According to RAND Corp., a single barrage along the entire length of the DMZ of all artillery pieces (not just the newest HARTS batteries) could fire as many as 385,000 rounds in an hour and kill over 205,000 people.
Due to the overlapping nature of each artillery piece, the following map shows the areas held most at risk by the greatest number of new guns, with some areas being within range of over 30 distinct batteries (each with 4-6 individual artillery pieces).
Downtown Seoul is in range of at least 30 new batteries but the area just to the north is within range of 47, which is why most of Seoul is not highlighted on the density map.
FINAL THOUGHTS
Other changes occur within and around the DMZ as well, though not necessarily as important as the ones described above. Many places within the DMZ (on both Northern and Southern sides) are routinely burnt to get rid of underbrush and create optimal observation conditions. What environmental impact this burning has on what has become an "accidental wildlife paradise", is little known. This also leads to increase erosion and will speed up the natural change in topography over time.
What began with the intention of being a temporary border has turned into a permanent feature of Korean division that has spanned three generations. The DMZ and the area around it have shaped the lives and destinies of millions and has become a sort of distant backdrop on which their lives play out, but it is certainly not a static feature. Lives are still lost and hopes are raised on this backdrop, but for as long as the peninsula is divided, it will stubbornly remain a symbol and a threat; one that can drastically change with the ebbs and flows of inter-Korean relations.
I would like to thank my current Patreon supporters: Amanda O., Anders O., GreatPoppo, John Pike, Kbechs87, Planefag, and Russ Johnson.
The Tanchon Hydroelectric Project is the largest hydroelectric project in North Korean history in terms of its complexity. Using a system of tunnels running for 60 km, it takes water from the Hochon River in Ryanggang Province (drawing from the Samsu Reservoir) and redirects it to the Tanchon hydroelectric generating stations in the small village of Sinhung, S. Hamgyong Province. Once completed, it will be the fulfillment of nearly a century of planning.
Construction of the enormous project began in 2017 and continued through 2018, but work began to slow down in 2019 and that has carried on this year, particularly at the generating stations, as this update reveals.
Tunneling work, on the other hand, appears to have made substantial progress.
Near the end of 2018, you can clearly see one of the over sixty access points to the main water tunnel, where small sections of the tunnel are excavation.
Almost exactly two years later, that one pile has become two very large piles.
The two piles cover a total of over 6,400 sq. meters. While not every access point has piles as large, they have all grown substantially, giving evidence to the size of the main water tunnel.
Part of the project is the Sinhung Dam, located less than 2 km from the generating site.
Looking at Power Station No. 6, there has been a lot of progress since 2018 (when almost nothing existed), but little else new can be seen since Sept. 2019.
One of the most obvious changes is the addition of a roof over the generating hall. The outward appearance of Power Station No. 6 suggests that it is completed. However, it is unknown if the turbines and other equipment have been installed. Although, depending on their size, the turbines may indeed have been installed prior to the rood addition, and the power station could be ready to become operational.
Until Power Station No. 1 is completed, the Tanchon project won't be able to produce but a fraction of its planned capacity. The slight progress made in the last year could be due to several factors.
The year 2020 has been especially difficult for North Korea's economy, and they were forced to limit the number of projects of national importance from 15 down to just 5. The economic and trade effects of COVID-19 have become more pronounced, and it is likely that the virus has indeed entered the country. On top of that, three typhoons hit North Korea and caused severe flooding across the country, and exchange rates between the DPRK won and US dollar have fallen.
It's possible that the project will receive some added assistance as part of the flood recovery efforts in the region, but it is just as likely that it won't be completed for another year as other major projects (the Pyongyang General Hospital and the Wonsan resort area) have also blown passed their planned completion deadlines and are still under construction.
I would like to thank my current Patreon supporters: Amanda O., Anders O., GreatPoppo, John Pike, Kbechs87, Planefag, and Russ Johnson.