Menentukan Titik Koordinat, Menghitung Jarak Dan Waktu ( Contoh soal ) Part II

Summary

The transcript outlines a detailed tutorial on solving a search and rescue (SAR) case, specifically on locating a missing hiker. It covers the process of determining the hiker's last known position (LKP), mapping the SAR team's starting coordinates, calculating the distance from the LKP to the starting point, and estimating the time required for the SAR team to reach the LKP. The instructor uses geographic coordinates, map readings, and calculations based on scale and terrain to demonstrate how to solve the problem, providing practical insights into SAR operations in challenging conditions.

Takeaways

• 😀 The scenario involves a search and rescue (SAR) operation for a missing hiker last seen at an elevation of 44 meters.
• 😀 The SAR team departs from a specific set of coordinates: 01° 13' 07.2" S and 116° 51' 12.97" E.
• 😀 The main task is to determine the last known position (LKP) of the missing hiker based on map coordinates.
• 😀 The map is scaled at 1:5000, and the exact location is found by carefully reading the coordinates on the map.
• 😀 The coordinates for the LKP of the hiker are 01° 12' 25.94" S and 116° 50' 24.32" E.
• 😀 The SAR team's initial position is plotted using their provided coordinates and accurately mapped on the scale.
• 😀 Distance calculation from the LKP to the SAR team's starting position is done by measuring the map's distance (8 cm) and converting it into real-world distance.
• 😀 The scale of the map is 1:25,000, meaning 1 cm on the map represents 25,000 cm (or 250 meters) in reality.
• 😀 Using the map’s scale, the real-world distance between the LKP and SAR team's starting position is 2 km.
• 😀 Time for the SAR team to reach the LKP is calculated using the formula: time = distance / speed. Given the speed of 1 km/h, the time required is 2 hours.

Q & A

What is the scenario described in the script?

The script describes a search and rescue (SAR) operation conducted by a joint SAR team after receiving a report about a missing adventurer. The last known location of the victim was at a height of 44 meters.

How is the last known position (LKP) of the victim determined?

The last known position of the victim is determined by using coordinates found on a map. The coordinates are calculated by measuring the latitude and longitude, with a scale of 1:5000 on the map.

What is the process for determining the victim's latitude and longitude on the map?

The latitude and longitude are determined by measuring the position of the victim's last known location on the map. The values are read from the map, and the measurements are then converted into coordinates, with additional details such as minutes and seconds.

What is the importance of using a scale of 1:5000 on the map?

A scale of 1:5000 helps to accurately measure distances on the map. It allows the coordinates to be translated into real-world measurements by converting map distances into actual distances using the specified scale.

What does 'kecepatan satu KPJ' refer to in the script?

'Kecepatan satu KPJ' refers to the speed of the SAR team, which is set at 1 kilometer per hour (KPJ). This speed is considered typical for the challenging terrain the team is navigating.

How is the distance between the last known position and the SAR team's starting point calculated?

The distance is calculated by measuring the distance on the map between the LKP and the SAR team's starting point. The map scale is used to convert this measurement into the actual distance in kilometers.

What is the formula used to calculate the time it takes for the SAR team to reach the LKP?

The time is calculated using the formula: Time = Distance / Speed. Given the distance between the LKP and the starting point (2 kilometers) and the speed of 1 km/h, the SAR team would take 2 hours to reach the victim.

What factors can affect the actual time it takes for the SAR team to reach the victim's location?

The actual time can be affected by various factors such as the terrain's difficulty, weather conditions, and the SAR team's experience and equipment. The script mentions that the calculation assumes an ideal situation.

How is the '30-second grid' used to calculate coordinates on the map?

The 30-second grid is a tool used to measure finer details on the map. It helps to convert fractional measurements into actual coordinates by calculating how many seconds a point is from a reference line on the map.

Why is it important to understand the difference between 'latitude' and 'longitude' when reading coordinates?

Understanding the difference is crucial because latitude and longitude represent two different axes on the globe. Latitude measures distances north or south of the equator, while longitude measures distances east or west of the Prime Meridian. Correctly identifying these ensures accurate positioning on the map.