ung dung google earth
TRANSCRIPT
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NG DNG SN PHM GOOGLE EARTH
TRONG CNG TC IU TRA KHO ST
KH TNG THY VN
ng Thanh Bnh Phan Th Hon i Kh tng Thy vn khu vc Nam Trung B.
1. t vn
Trong bi cnh bin i kh hu , ang nh hng ti quy m ton cu v
Vit Nam l mt trong nhng nc phi chu tc ng nng n nht. i mt vi cc
hin tng tri t nng ln, nc bin dng; bn cnh l cc hin tng thi tit
thy vn xut hin ngy mt d thng hn, mc ngy mt cc oan hn.
Cng tc iu tra kho st kh tng thy vn ngy cng c ch trng, trong
khi c nhng lc nhng ni trang thit b vn cn thiu thn, vic ng dng chuyn
giao cng ngh cn hn ch; vn khai thc x dng c mt chng trnh phn
mm n gin tin ch, chnh xc cao trong lnh vc kho st v nh v a hnh l
thc s cn thit.
2. Phn mm Google Earth
* Sc mnh tm kim ca Google khng ch th hin c my tm kim quen
thuc ti website ca n. Nhm a dng ho loi hnh thng tin tm kim, nm 2004
Google mua li phn mm a cu o ni ting l Keyhole kt hp n vi nhng
tnh nng ca Google Maps. n nm 2005, sn phm ny c i tn thnh Google
Earth v chy c trn cc h iu hnh Linux, MAC OS v MS Windows.
* Google Earth l mt chng trnh mt phn mm m phng qu a cu c
tn gi gc l Earth Viewer. N v bn tri t l mt qu a cu o 3D, trn l
nhng hnh nh a l c ly t nh v tinh, cc nh chp trn khng v t h thng
thng tin a l GIS.
* C th lu du v tr, hnh dng v ton b th mc v ni dung ca th mc
vo cng my tnh ca bn. Tp hoc th mc du v tr c lu di dng tp n
l trong nh dng KML hay KMZ m bn c th m bt k lc no trong Google
Earth.
* s dng Google Earth cc bn cn ti v b ci t phn mm ny ti
website: http://earth.google.com, Google cung cp phin bn min ph l Google Earth
v cc phin bn tr ph cho cc nhu cu cao hn l Google Earth Plus v Google
Earth Pro.
* Sn phm ca Google Earth m chng ta thu c c th l: nh v a hnh
nh mt my GPS ngay ti vn phng, H ta a l c quy chun v h quc t
WGS84 vi chnh xc ti Centimet, o chiu di v din tch, Hnh nh chp chi
tit, Video clip thao tc, Gii tr bng cc tour du lch tham quan sinh ng cc danh
lam trn ton th gi, Chia s thng tin a im qua mng Internet
3. ng dng Google Earth
http://earth.google.com/ -
3.1. ng dng trong qun l
Dng chc nng nh v, t tn v nh km nh qun l li trm KTTV
trong khu vc; mt cch trc quan, khoa hc, tin ch.
3.2. ng dng trong kho st thc a
Dng chc nng d tm cc v tr trn thc t c a hnh phc tp nh: Ni
cao, o sut xc nh c kinh , v .
3.3. ng dng xc nh tiu im
Dng chc nng tia ngm ngang, thc o v bin trnh cao xc nh
cng nh qun l cc tiu im ca trm kh tng.
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3.4. ng dng thuyt minh li dn kinh, v, cao
Dng chc mng li thc o v din ton cao thuyt minh li dn
truyn kinh , v , cao .
4. Kt lun
y l sn phm cng ngh cao, ph thng, ngun m, k thut s dng n
gin, c cung cp min ph bi Google Earth. Sn phm c ng dng rng ri
ti nhiu nc tin tin trn th gii. C th chia s thng tin gia cc c quan, c
nhn c thun li v nhanh chng. ng dng trong vic kho st, xc nh chnh
xc to , xc nh s b cao , o chiu di, o din tch, tham quan du lch... Tp
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hun trong thi gian ngn l c th s dng thnh tho chng trnh. Cn c s u t
dch thut, bin tp, xut bn ti liu hng dn s dng. C th ni, Google Earth
mang li cho chng ta mt hnh thc tm kim thng tin mi, gip chng ta khm ph
v hiu hn v tri t m chng ta ang sng!
Ti liu tham kho:
1. PGS.TS Phm Vn Chuyn, 2000, Nh xut bn xy dng, Gio trnh o c;
2 Hong Xun Thnh (ch bin), 2005, i hc thy li, Gio trnh Trc a i cng;
3. Website: http://earth.google.com; 4. Website: http://www.gis.com.
http://earth.google.com/