Geographic - Disaster Risk Reduction Knowledge Service

query browse

2017-05-02

Instructions for use An online query tool developed for topographic map framing standards. At present, the query of the new versio...

solar height angle solar azimuth

2017-05-02

Instructions for use This application is often encountered in geography. The function of online calculation [solar altitude ] (/wi...

longitude latitude

2017-05-02

App Description The earth equator wraps around the earth for a total of 40075.04 kilometers, while @ a circle is divided into 360...

earth distance

2017-05-02

On the equator of the earth, it takes a circle of 40075.04 kilometers around the earth, and @ circle is divided into 360°. And eve...

planar vector angle

2017-05-02

Planar vector angle online calculator \(|a|=√[x1^2+y1^2]\) \(|b|=√[x2^2+y2^2]\) \(a \times b=(x1,y1)(x2,y2)=x1x2+y1y2\) \(cos=a \t...

geodetic coordinate system Gauss

2017-05-02

The geodetic coordinate system is converted into a Gaussian plane rectangular coordinate system online conversion tool (multiple ...

mass force

2017-05-02

APP description The formula of centripetal force centrifugal force: Centripetal centrifugal force: \(f= \frac {mv^2}{r} \) Radius:...

Map coordinates

2017-05-02

Instructions for use An application based on online latitude and longitude coordinates developed by [OpenStreetMap] (/wiki/OpenSt...

Ground Information

2017-05-02

Satellite antenna azimuth and elevation online calculator. Simply enter the longitude and latitude of the ground station, then th...

latitude and longitude location

2017-05-02

Calculate the location map number based on the latitude and longitude. The frame number given here is the new number. Through the...