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Also Visit:  Weather Observation Station 19 Solution

Problem

Consider P1(a, c) and P2(b, d) to be two points on a 2D plane where (a, b) are the respective minimum and maximum values of Northern Latitude (LAT_N) and (c, d) are the respective minimum and maximum values of Western Longitude (LONG_W) in STATION.

Query the Euclidean Distance between points P1 and P2 and format your answer to display 4 decimal digits.

Input Format

The STATION table is described as follows:

where LAT_N is the northern latitude and LONG_W is the western longitude.

Solution – Weather Observation Station 19

MySQL Code

SET @r = 0;

SELECT ROUND(AVG(Lat_N), 4)

FROM (SELECT (@r := @r + 1) AS r, Lat_N FROM Station ORDER BY Lat_N) Temp WHERE

    r = (SELECT CEIL(COUNT(*) / 2) FROM Station) OR

    r = (SELECT FLOOR((COUNT(*) / 2) + 1) FROM Station)

Weather observations

Basic weather observation instruments include thermometers, rain gauges, barometers, and anemometers (wind speed meters).

What are the four types of weather observations?

There are four types of weather observations: surface, upper air, radar, and satellite.

What is weather observation stations?

A weather station is a facility, either on land or sea, with instruments and equipment for measuring atmospheric conditions to provide information for weather forecasts and to study the weather and climate.

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