[Original. Data visualization series of five] "Sade" system defense diagram of Korea

Since July 8, when the United States and South Korea jointly announced the deployment of the Sade anti-missile system in South Korea, the domestic controversy over the matter and the strong dissatisfaction of some countries in the region continued to ferment. "Sade" (THAAD), the "last High Altitude Zone defense system", is the U.S. Missile Defense Bureau and the United States Army under the land-based war zone antimissile system. South Korea, ignoring the interests of China, Russia and other regional countries, insisted on the introduction of "Sade" to South Korea, the reasons for its claim to defend national security concerns. But "Sade" is not only unhelpful to South Korea's security, but also as the "specter of the Cold War" generally threaten peace and stability in Northeast Asia.

Now, we use the data visualization method to look at the scope of the detection of Sade, the impact on civil aviation and the scope of defense, so you will understand the purpose of the United States to deploy the Sade system.

Sade system using X-band radar, we assume that the earth is a sphere, ignoring the height of the mountain, then the detection range of 2000 km or so of the Sade system, the detection range is basically covered in Guangzhou, Chongqing, Lanzhou, east of the vast majority of China's land, think is quite scary data, you a country most high-altitude activities, Are looked at in the eyes of others; the same Russian, part of the Far East is also being stared at. So what is the height of the object he detects at a distance of 2000 kilometres? The radius of the earth is 6371KM, at a distance of 2000 km we use the Pythagorean theorem to find the height: h= (6371^2+2000^2)-6371. Height approx. 307KM. Generally this height, is the missile, the satellite flight height;

Let's add a circle to indicate the range of detection:

　　

        var Redpoints=createcirle ({x:128.60178999999994,y:35.87269},2000000,306547);        var redLine = Mainxiu.viewer.entities.add ({        name: ' Glowing blue Line on the surface ',        polyline: {            positions : Cesium.Cartesian3.fromDegreesArrayHeights (redpoints),//cesium.cartesian3.fromdegreesarray (redpoints),            Width:10,            material:new cesium.polylineglowmaterialproperty ({                glowpower:0.2,                color: (Cesium.Color.GREEN            }),                   }    });

　　　　

So how much did he influence civil aviation? Civil aviation aircraft fly at a height of 12KM (12000 m), likewise using the Pythagorean theorem to seek the height of the h=sqrt ((6371+12) ^2-6371^2). The distance is about 391M; If you are deployed in Daegu, Korea, Pyongyang is under your eyelids, flying from Pyongyang airport flies can not escape your eyes, three fat, although you are the universe's most NB Gen Y, but your back vest is sweating?

We'll add a circle to indicate the scope of civil aviation detection:

 var  Redpoints=createcirle ({x:128.60178999999994,y:35.87269},        391000,12000);  var  redLine = ' glowing blue line on the surface '  // cesium.cartesian3.fromdegreesarray (redpoints),  WIDTH:10
     
      , Material: 
      new   Cesium.polyline  Glowmaterialproperty ({glowpower:  0.2, Color: Cesium.Color.GREEN});  

However, the flood control of Sade is 200KM range, if deployed in Daegu, [email protected], even Seoul are not in your defensive circle. What the hell are you doing?

We add a ball to indicate the defensive range:

var redsphere = mainxiu.viewer.entities.add ({            ' Red sphere with black outline ',            position : Cesium.Cartesian3.fromDegrees (128.60178999999994, 35.87269, -10000.0),            ellipsoid: {                  New cesium.cartesian3 (200000.0, 200000.0, 200000.0),                Material:Cesium.Color.RED.withAlpha (0.2 ),                false,                OutlineColor:Cesium.Color.BLACK            }        });

Look:

Now that you're done, what do you think of the American map? Korea map What? That's clear.

[Original. Data visualization series of five] "Sade" system defense diagram of Korea