https://padlet.com/kkit_cuhk/ltt56uuxhj7pcwgk en-us 2022-09-13 02:02:32 UTC 2026-01-01 22:26:11 UTC hello@padlet.com https://padlet.net/icons/png/1f914.png kkit_cuhk https://padlet.com/kkit_cuhk/ltt56uuxhj7pcwgk/wish/2293424764 It's because....]]> 2022-09-13 02:15:37 UTC https://padlet.com/kkit_cuhk/ltt56uuxhj7pcwgk/wish/2293424764 https://padlet.com/kkit_cuhk/ltt56uuxhj7pcwgk/wish/2294058883 可以吧，modis 和landsat 就可以]]> 2022-09-13 10:59:13 UTC https://padlet.com/kkit_cuhk/ltt56uuxhj7pcwgk/wish/2294058883 https://padlet.com/kkit_cuhk/ltt56uuxhj7pcwgk/wish/2294059820 2022-09-13 11:00:02 UTC https://padlet.com/kkit_cuhk/ltt56uuxhj7pcwgk/wish/2294059820 https://padlet.com/kkit_cuhk/ltt56uuxhj7pcwgk/wish/2294059946 I think the polar-orbiting satellites can do this, for example, the Landsat8, it can capture the complete earth surface after 16 days.]]> 2022-09-13 11:00:07 UTC https://padlet.com/kkit_cuhk/ltt56uuxhj7pcwgk/wish/2294059946 https://padlet.com/kkit_cuhk/ltt56uuxhj7pcwgk/wish/2294060317 The sun-synchronous satellite can do it]]> 2022-09-13 11:00:30 UTC https://padlet.com/kkit_cuhk/ltt56uuxhj7pcwgk/wish/2294060317 https://padlet.com/kkit_cuhk/ltt56uuxhj7pcwgk/wish/2294061316 Satellites can change their orbit, so
It can get. For example, Gaofen-1 satellite can achieve 15 days of global coverage and two days of re-visit to quickly acquire global images]]> 2022-09-13 11:01:32 UTC https://padlet.com/kkit_cuhk/ltt56uuxhj7pcwgk/wish/2294061316 https://padlet.com/kkit_cuhk/ltt56uuxhj7pcwgk/wish/2294062197 The polar orbiting satellite can do it.]]> 2022-09-13 11:02:28 UTC https://padlet.com/kkit_cuhk/ltt56uuxhj7pcwgk/wish/2294062197 https://padlet.com/kkit_cuhk/ltt56uuxhj7pcwgk/wish/2294062238 YES,because the polar satellite can cover several parts a day(14 orbits). If given enough time, the polar satellite could record all the global surface.]]> 2022-09-13 11:02:32 UTC https://padlet.com/kkit_cuhk/ltt56uuxhj7pcwgk/wish/2294062238 https://padlet.com/kkit_cuhk/ltt56uuxhj7pcwgk/wish/2294063043 Yes, we can capture the whole earth surface by MODIS software. ]]> 2022-09-13 11:03:11 UTC https://padlet.com/kkit_cuhk/ltt56uuxhj7pcwgk/wish/2294063043 https://padlet.com/kkit_cuhk/ltt56uuxhj7pcwgk/wish/2294064570 yes，polar-orbiting statelite can]]> 2022-09-13 11:04:07 UTC https://padlet.com/kkit_cuhk/ltt56uuxhj7pcwgk/wish/2294064570 https://padlet.com/kkit_cuhk/ltt56uuxhj7pcwgk/wish/2294064617 Polar-orbiting satellites can do this, as long as the relationship between its orbital period and the width of the field of view is adjusted well, that is, it rotates around the Earth once, the distance of the Earth's equator does not exceed the width of its field of view, the entire surface of the earth will not be missed.]]> 2022-09-13 11:04:10 UTC https://padlet.com/kkit_cuhk/ltt56uuxhj7pcwgk/wish/2294064617 https://padlet.com/kkit_cuhk/ltt56uuxhj7pcwgk/wish/2294064636 1155184711
Polar-orbiting satellites could eventually capture images of the whole globe, by moving in orbit and constantly acquiring images.]]> 2022-09-13 11:04:11 UTC https://padlet.com/kkit_cuhk/ltt56uuxhj7pcwgk/wish/2294064636 https://padlet.com/kkit_cuhk/ltt56uuxhj7pcwgk/wish/2294065454 2022-09-13 11:05:00 UTC https://padlet.com/kkit_cuhk/ltt56uuxhj7pcwgk/wish/2294065454 https://padlet.com/kkit_cuhk/ltt56uuxhj7pcwgk/wish/2294066280 because polar-orbiting can do this (like modis and landsat)]]> 2022-09-13 11:05:52 UTC https://padlet.com/kkit_cuhk/ltt56uuxhj7pcwgk/wish/2294066280 https://padlet.com/kkit_cuhk/ltt56uuxhj7pcwgk/wish/2294066453 My answer is yes, it can 
If the satellite travel around the earth in enough circle, it can get the hole image because the earth rotation west to east]]> 2022-09-13 11:06:00 UTC https://padlet.com/kkit_cuhk/ltt56uuxhj7pcwgk/wish/2294066453 https://padlet.com/kkit_cuhk/ltt56uuxhj7pcwgk/wish/2294067018 In my humble opinion, take the Landsat 8 as an example which has been talked in the Micro- module. It will cost 16 days to collect the record the reflected data. And it will pass 14 orbits and collected 740 scence in common. Besides the earth still rotates from west to east, so it will capture the whole images in some time.]]> 2022-09-13 11:06:31 UTC https://padlet.com/kkit_cuhk/ltt56uuxhj7pcwgk/wish/2294067018 https://padlet.com/kkit_cuhk/ltt56uuxhj7pcwgk/wish/2294067433 I think it can because sun synchronous orbitthe satellite orbit passes through the north and south poles of the Earth, that is, it turns vertically and perpendicular to the equator, that semicircular arc on the globe that continues into a full circle. Thus the earth rotates one week a day and it sweeps every part of the earth from north to south and from south to north twice, once during the day and once at night.]]> 2022-09-13 11:06:46 UTC https://padlet.com/kkit_cuhk/ltt56uuxhj7pcwgk/wish/2294067433 https://padlet.com/kkit_cuhk/ltt56uuxhj7pcwgk/wish/2294067940 yes. The polar orbit satellite can do it.]]> 2022-09-13 11:07:17 UTC https://padlet.com/kkit_cuhk/ltt56uuxhj7pcwgk/wish/2294067940 https://padlet.com/kkit_cuhk/ltt56uuxhj7pcwgk/wish/2294068595 2022-09-13 11:07:33 UTC https://padlet.com/kkit_cuhk/ltt56uuxhj7pcwgk/wish/2294068595 https://padlet.com/kkit_cuhk/ltt56uuxhj7pcwgk/wish/2294068826 2022-09-13 11:07:46 UTC https://padlet.com/kkit_cuhk/ltt56uuxhj7pcwgk/wish/2294068826 https://padlet.com/kkit_cuhk/ltt56uuxhj7pcwgk/wish/2294069115
1155182404]]> 2022-09-13 11:08:04 UTC https://padlet.com/kkit_cuhk/ltt56uuxhj7pcwgk/wish/2294069115