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Understanding Relative and Absolute Location Using Landmarks and Grid Systems

This educational resource explores the concept of location in geography, focusing on both relative and absolute methods. It illustrates how to express locations using familiar landmarks like "Behind Big Bazaar" or "Opposite Shiv Temple." Furthermore, it delves into the absolute location provided by grid systems, emphasizing the use of latitudes and longitudes, as well as the Eastings and Northings system. The content demonstrates how to convert these coordinates into six-figure grid references for accurate positioning, showcasing the practicality and efficiency of these systems.

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Understanding Relative and Absolute Location Using Landmarks and Grid Systems

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Presentation Transcript

  1. Book -1 Std -10

  2. Relative Location • Location expressed using landmarks • Behind Big Bazaar • Opposite Shiv Temple • Near Patel Pan • Absolute Location • Location expressed using known grid system • 19° N; 78° E

  3. Latitudes and longitudes Eastings and Northings

  4. Conclusion • Both grid systems do not overlap • System of Eastings and Northings is more accurate • System of Eastings and Northings is simpler

  5. First two digits are eastings • Next two digits are northings • By convention, lesser value is always taken

  6. PAMERA • MALGAON • 1520 • GULABGANJ • 1820 OR 1920

  7. First two digits are eastings • 3rd digit is the 10th division of eastings • Next two digits are northings • 6th digit is the 10th division of northings

  8. 0 1 2 3 4 5 6 7 8 9 9 8 7 6 5 4 3 2 1 0 EXPRESSING THE LOCATION AS A SIX FIGURE GRID REFERENCE 26 25 • 4 figure grid reference • is 2577 • Six figure grid reference of temple is 78 3 1 77

  9. 4 figure grid reference • 6 figure grid reference

  10. 25 26 78 77 EXPRESSING THE LOCATION AS A SIX FIGURE GRID REFERENCE • 4 figure grid reference • is 2577 • Six figure grid reference • A – 256778 • B – 258775

  11. 25 26 78 77 • 6 figure reference of G is • x = a / 2 • y = b / 2 • Truncate the decimals • If a = 13 mm; b = 11 mm • 6 figure grid reference is • 256775 20 mm G a b

  12. Guided practice Start working on the assignment sheet

  13. End of Presenattion

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