1 2000 138 20 1
1989-12-26 2004-8-28 1997-01-01 2007-10-28 2002-08-29 1998-04-29 2004-08-28 1997-01-01 1994-12-01 2006-9-19 [2000]38 2000-11-26 1995-05-04 2002-10-01 2000 2008-06 2002-11 GB50298-1999 GB/T 14529-93 GB/T18971 2003 1996 2
1. 2. 3. 4. GPS 3
1. 3 2. 2000 77 ( ) 4
( ) 1. 5
2. 3. 50 80 6
1. 2. * * * * ( ) * * * * * 7
* * 3. 3-5 4. 5. 6. 1. 2. 3-5 3. 8
* * * WebGIS 5-8 3-5 9
, 2 1 2 1 10
2 20km 1/5000-1/10000 21-100km 1/10000-1/25000 101-500km 1/25000-1/50000 500km 1/50000-1/100000 3 1 2 3 1 5 4 GPS 5 6 7 11
8 GPS 9 10 11 138 ( ) 12
13 2008.5 1 2 3 1. 4 5 6 7 2. 8 9 10 11 3. 12 4. 13 14 15 5. 16 17 6. 18 19 7. 20 8.21
14 9. 22 10. 23 24 25 11. 26 27 28 29 ( ) 30 12. 31 32 33 13. 34 14. 35 U
15 36 37 38 15. 39 40 16. 41 17. 42 43 18. 44 45 19. 46 20. 47 21. 48 49 22. 50 23. 51 52 53 54 24. 55
16