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.

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

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/