usgs-dem

heye

下面是用gloable mapper转出的 usgs - dem 的文件的开头部分，请教一下：这些数据表示什么意思？

不胜感激

0 1 1 0 0 0.000000000000000 0.000000000000000 0.000000000000000 0.000000000000000 0.000000000000000 0.000000000000000 0.000000000000000 0.000000000000000 0.000000000000000 0.000000000000000 0.000000000000000 0.000000000000000 0.000000000000000 0.000000000000000 0.000000000000000 3 2 4 396000.001743399540000 126000.000348650850000 396000.001743399540000 144000.000348650850000 414000.001743399540000 144000.000348650850000 414000.001743399540000 126000.000348650850000 -65.000000000000000 3059.000000000000000 0.000000000000000 0 3.000000 3.000000 0.100000 1 6001 00 00 0 0 0 0 0 3 0 0 0 0 0 00.00 1 1 6001 1 396000.001743399540000 126000.000348650850000 0.000000000000000 503.000000000000000 1719.000000000000000 5180 5230 5300 5330 5350 5370 5390 5410 5400 5380 5400 5410 5410 5410 5420 5420 5410 5430 5430 5420 5450 5470 5450 5450 5460 5460 5470 5480 5510 5510 5520 5540 5590 5580 5580 5610 5650 5690 5720 5770 5820 5880 5910 5900 5970 6050 6060 6070 6130 6170 6200 6230 6230 6220 6230 6240 6240 6240 6150 6080 6160 6240 6260 6250 6270 6300 6320 6350 6370 6400 6470 6500 6500 6530 6570 6600 6600 6630 6630 6640 6650 6660 6670 6670 6690 6670 6660 6640 6620 6600 6600 6560 6570 6550 6540 6520 6520 6500 6510 6500 6490 6520 6540 6540 6560 6520 6510 6540 6570 6600 6620 6570 6440 6330 6270 6130 5880 5760 5730 5520 5120 5030 5040 5130 5240 5310 5390 5500 5630 5560 5550 5460 5370 5370 5480 5650 5850 5920 5890 5820 5750 5620 5760 6000 6130 6130 6310 6370 6390 6400 6390 6380 6410 6410 6410 6450 6430 6440 6450 6460 6460 6450 6460 6490 6510 6530 6550 6560 6570 6580 6600 6590 6610 6640 6670 6660 6650 6650 6650 6670 6690 6710 6720 6730 6740 6740 6740 6750 6760 6740 6730 6750 6800 6790 6800 6800 6820 6820 6820 6830 6840 6840 6860 6860 6870 6880 6890 6890 6910 6920 6920 6900 6910 6930 6940 6930 6950 6960 6970 6970 6970 6960 7000 7010 7000 7030 7080 6930 6690 6820 6950 6750 6720 7000 7040 7090 7100 7180 7210 7200 7230 7180 7120 7090 7220 7260 7060 6830 6700 6710 6520 6550 6500 6430 6470 6570 6740 6870 6950 6940 7070 7170 7350 7200 7240 7260 7200 7240 7120 6870 6680 6730 6760 6740 6580 6420 6540 6670 6550

heye

关键是这部分 数据表示什么信息
396000.001743399540000 126000.000348650850000 396000.001743399540000 144000.000348650850000 414000.001743399540000 144000.000348650850000 414000.001743399540000 126000.000348650850000 -65.000000000000000 3059.000000000000000 0.000000000000000 0 3.000000 3.000000 0.100000 1 6001 00 00 0 0 0 0 0 3 0 0 0 0 0 00.00 1 1 6001 1 396000.001743399540000 126000.000348650850000 0.000000000000000 503.000000000000000 1719.000000000000000

请赐教，非常感谢