1.해발고도와GPS고도의 개념해설

##해발고도와GPS고도의 개념해설## <img width="610" class="txc-image" id="tx_entry_68243_" style="clear: none; float: none;" src="https://t1.daumcdn.net/cfile/cafe/2176A94258FD909244" border="0" vspace="1" hspace="1" data-filename="수준원점표시.jpg" exif="{}" actualwidth="610" id="A_2176A94258FD909244B27C"/> <table width="70" style="width: 53pt; border-collapse: collapse;" border="0" cellspacing="0" cellpadding="0"><colgroup><col width="70" style="width: 53pt;"><tbody><tr height="26" style="height: 19.2pt;"><td width="70" height="26" style="border: 0px black; border-image: none; width: 53pt; height: 19.2pt; background-color: transparent;"> <table width="700" style="width: 530pt; border-collapse: collapse;" border="0" cellspacing="0" cellpadding="0"><colgroup><col width="70" style="width: 53pt;" span="10"><tbody><tr height="23" style="height: 17.4pt;"><td width="70" height="23" style="border: 0px black; border-image: none; width: 53pt; height: 17.4pt; background-color: transparent;">해발고도</td><td width="70" style="border: 0px black; border-image: none; width: 53pt; background-color: transparent;"></td><td width="70" style="border: 0px black; border-image: none; width: 53pt; background-color: transparent;"></td><td width="70" style="border: 0px black; border-image: none; width: 53pt; background-color: transparent;"></td><td width="70" style="border: 0px black; border-image: none; width: 53pt; background-color: transparent;"></td><td width="70" style="border: 0px black; border-image: none; width: 53pt; background-color: transparent;"></td><td width="70" style="border: 0px black; border-image: none; width: 53pt; background-color: transparent;"></td><td width="70" style="border: 0px black; border-image: none; width: 53pt; background-color: transparent;"></td><td width="70" style="border: 0px black; border-image: none; width: 53pt; background-color: transparent;"></td><td width="70" style="border: 0px black; border-image: none; width: 53pt; background-color: transparent;"></td></tr><tr height="23" style="height: 17.4pt;"><td height="23" style="border: 0px black; border-image: none; height: 26px; background-color: transparent; mso-ignore: colspan;" colspan="8">해발고도는 각 나라마다 다른 해발고도 측정을 위한 기준수면을 가지고 있다</td><td style="border: 0px black; border-image: none; height: 26px; background-color: transparent;"></td><td style="border: 0px black; border-image: none; height: 26px; background-color: transparent;"></td></tr><tr height="23" style="height: 17.4pt;"><td height="23" style="border: 0px black; border-image: none; height: 17.4pt; background-color: transparent; mso-ignore: colspan;" colspan="8">우리나라는 4군데의 기준수면을 가지고 있는데, 육지는 인천앞바다가 기준이다 </td><td style="border: 0px black; border-image: none; background-color: transparent;"></td><td style="border: 0px black; border-image: none; background-color: transparent;"></td></tr><tr height="23" style="height: 17.4pt;"><td height="23" style="border: 0px black; border-image: none; height: 17.4pt; background-color: transparent; mso-ignore: colspan;" colspan="10">바닷물은 밀물,썰물에 따라 변하지만 몇 년에 걸쳐 측정을하여 평균을 내어 그수면을 0m의 기준수면 이라한다</td></tr><tr height="23" style="height: 17.4pt;"><td height="23" style="border: 0px black; border-image: none; height: 17.4pt; background-color: transparent; mso-ignore: colspan;" colspan="8"> 그다음 이 기준을 육지에 옳겨놓아야 하는데 이것을 "수준원점"이라고 한다</td><td style="border: 0px black; border-image: none; background-color: transparent;"></td><td style="border: 0px black; border-image: none; background-color: transparent;"></td></tr><tr height="23" style="height: 17.4pt;"><td height="23" style="border: 0px black; border-image: none; height: 17.4pt; background-color: transparent; mso-ignore: colspan;" colspan="8">우리나라 는 인천"인하대학교 교정에 26.6871m의 수준원점"을 설치되어있다</td><td style="border: 0px black; border-image: none; background-color: transparent;"></td><td style="border: 0px black; border-image: none; background-color: transparent;"></td></tr><tr height="23" style="height: 17.4pt;"><td height="23" style="border: 0px black; border-image: none; height: 17.4pt; background-color: transparent; mso-ignore: colspan;" colspan="6">이 수준원점을 기준으로 전국 모든지점에 높이를 측정한다.</td><td style="border: 0px black; border-image: none; background-color: transparent;"></td><td style="border: 0px black; border-image: none; background-color: transparent;"></td><td style="border: 0px black; border-image: none; background-color: transparent;"></td><td style="border: 0px black; border-image: none; background-color: transparent;"></td></tr><tr height="23" style="height: 17.4pt;"><td height="23" style="border: 0px black; border-image: none; height: 17.4pt; background-color: transparent; mso-ignore: colspan;" colspan="8">참고로 다른세군데의 기준원점은  제주도, 울릉도,독도 이렇게 설치되어 있다</td><td style="border: 0px black; border-image: none; background-color: transparent;"></td><td style="border: 0px black; border-image: none; background-color: transparent;"></td></tr></tbody></table></td></tr></tbody></table> <table width="770" style="width: 583pt; border-collapse: collapse;" border="0" cellspacing="0" cellpadding="0"><colgroup><col width="70" style="width: 53pt;" span="11"><tbody><tr height="23" style="height: 17.4pt;"><td width="70" height="23" style="border: 0px black; border-image: none; width: 53pt; height: 17.4pt; background-color: transparent;">GPS고도</td><td width="70" style="border: 0px black; border-image: none; width: 53pt; background-color: transparent;"></td><td width="70" style="border: 0px black; border-image: none; width: 53pt; background-color: transparent;"></td><td width="70" style="border: 0px black; border-image: none; width: 53pt; background-color: transparent;"></td><td width="70" style="border: 0px black; border-image: none; width: 53pt; background-color: transparent;"></td><td width="70" style="border: 0px black; border-image: none; width: 53pt; background-color: transparent;"></td><td width="70" style="border: 0px black; border-image: none; width: 53pt; background-color: transparent;"></td><td width="70" style="border: 0px black; border-image: none; width: 53pt; background-color: transparent;"></td><td width="70" style="border: 0px black; border-image: none; width: 53pt; background-color: transparent;"></td><td width="70" style="border: 0px black; border-image: none; width: 53pt; background-color: transparent;"></td><td width="70" style="border: 0px black; border-image: none; width: 53pt; background-color: transparent;"></td></tr><tr height="23" style="height: 17.4pt;"><td height="23" style="border: 0px black; border-image: none; height: 17.4pt; background-color: transparent; mso-ignore: colspan;" colspan="8">먼저 GPS(Global Positioning System)란 미국 정부가 운용하는 군사용 인공위성들을 </td><td style="border: 0px black; border-image: none; background-color: transparent;"></td><td style="border: 0px black; border-image: none; background-color: transparent;"></td><td style="border: 0px black; border-image: none; background-color: transparent;"></td></tr><tr height="23" style="height: 17.4pt;"><td height="23" style="border: 0px black; border-image: none; height: 17.4pt; background-color: transparent; mso-ignore: colspan;" colspan="9">1983년 대한항공 007편 격추 사건이 일어나자 이후 민간에도 개방되어 현재에 이르렸다</td><td style="border: 0px black; border-image: none; background-color: transparent;"></td><td style="border: 0px black; border-image: none; background-color: transparent;"></td></tr><tr height="23" style="height: 17.4pt;"><td height="23" style="border: 0px black; border-image: none; height: 17.4pt; background-color: transparent; mso-ignore: colspan;" colspan="10"> GPS기기가 나타내는 GPS고도는 우리나라의 경우 정확하지 않다 대개 해발고도와 20~30m 오차가 난다</td><td style="border: 0px black; border-image: none; background-color: transparent;"></td></tr><tr height="23" style="height: 17.4pt;"><td height="23" style="border: 0px black; border-image: none; height: 17.4pt; background-color: transparent; mso-ignore: colspan;" colspan="11">GPS고도의 기준면은 지구 질량의 중심점에 기준점을 두고 설정한 지오이드면을 지준면으로 삼고 고도를 측정한다</td></tr></tbody></table> <table width="350" style="width: 265pt; border-collapse: collapse;" border="0" cellspacing="0" cellpadding="0"><colgroup><col width="70" style="width: 53pt;" span="5"><tbody><tr height="23" style="height: 17.4pt;"><td width="140" height="23" style="border: 0px black; border-image: none; width: 106pt; height: 17.4pt; background-color: transparent; mso-ignore: colspan;" colspan="2">기압고도(압력고도)</td><td width="70" style="border: 0px black; border-image: none; width: 53pt; background-color: transparent;"></td><td width="70" style="border: 0px black; border-image: none; width: 53pt; background-color: transparent;"></td><td width="70" style="border: 0px black; border-image: none; width: 53pt; background-color: transparent;"></td></tr><tr height="23" style="height: 17.4pt;"><td height="23" style="border: 0px black; border-image: none; height: 17.4pt; background-color: transparent; mso-ignore: colspan;" colspan="5">손목에차는 기압고도 등도 있으나 오차가 많음</td></tr></tbody></table> <img width="1024" class="txc-image" id="tx_entry_50665_" style="clear: none; float: none;" src="https://t1.daumcdn.net/cfile/cafe/221B0E3F58FD916D01" border="0" vspace="1" hspace="1" data-filename="태복산해발고도.png" exif="{}" actualwidth="1024" id="A_221B0E3F58FD916D0196E5"/> <img width="1024" class="txc-image" id="tx_entry_71393_" style="clear: none; float: none;" src="https://t1.daumcdn.net/cfile/cafe/225E2C3F58FD91712A" border="0" vspace="1" hspace="1" data-filename="태복산GPS고도.png" exif="{}" actualwidth="1024" id="A_225E2C3F58FD91712A5F10"/> <table width="770" style="width: 583pt; border-collapse: collapse;" border="0" cellspacing="0" cellpadding="0"><colgroup><col width="70" style="width: 53pt;" span="11"><tbody><tr height="23" style="height: 17.4pt;"><td width="70" height="23" style="border: 0px black; border-image: none; width: 53pt; height: 17.4pt; background-color: transparent;">연습)</td><td width="70" style="border: 0px black; border-image: none; width: 53pt; background-color: transparent;"></td><td width="70" style="border: 0px black; border-image: none; width: 53pt; background-color: transparent;"></td><td width="70" style="border: 0px black; border-image: none; width: 53pt; background-color: transparent;"></td><td width="70" style="border: 0px black; border-image: none; width: 53pt; background-color: transparent;"></td><td width="70" style="border: 0px black; border-image: none; width: 53pt; background-color: transparent;"></td><td width="70" style="border: 0px black; border-image: none; width: 53pt; background-color: transparent;"></td><td width="70" style="border: 0px black; border-image: none; width: 53pt; background-color: transparent;"></td><td width="70" style="border: 0px black; border-image: none; width: 53pt; background-color: transparent;"></td><td width="70" style="border: 0px black; border-image: none; width: 53pt; background-color: transparent;"></td><td width="70" style="border: 0px black; border-image: none; width: 53pt; background-color: transparent;"></td></tr><tr height="23" style="height: 17.4pt;"><td height="23" style="border: 0px black; border-image: none; height: 17.4pt; background-color: transparent; mso-ignore: colspan;" colspan="9">위의 지도의 태복산정상 해발고도는 253.4m, GPS고도는 229m(오록스로 체크) 인것을 알수있다 </td><td style="border: 0px black; border-image: none; background-color: transparent;"></td><td style="border: 0px black; border-image: none; background-color: transparent;"></td></tr><tr height="23" style="height: 17.4pt;"><td height="23" style="border: 0px black; border-image: none; height: 17.4pt; background-color: transparent; mso-ignore: colspan;" colspan="9">약24m차이가 나는데 이두 모두 맞다는 것이다 다만 우리나라에는 해발고도를 사용한다</td><td style="border: 0px black; border-image: none; background-color: transparent;"></td><td style="border: 0px black; border-image: none; background-color: transparent;"></td></tr><tr height="23" style="height: 17.4pt;"><td height="23" style="border: 0px black; border-image: none; height: 17.4pt; background-color: transparent; mso-ignore: colspan;" colspan="11">그렇기때문에 GPS(오록스등)에 사용하는고도와 우리나라 지도에 사용하는 고도는 약20~30m정도 차이가 난다</td></tr><tr height="23" style="height: 17.4pt;"><td height="23" style="border: 0px black; border-image: none; height: 17.4pt; background-color: transparent;"> <table width="840" style="width: 636pt; border-collapse: collapse;" border="0" cellspacing="0" cellpadding="0"><colgroup><col width="70" style="width: 53pt;" span="12"><tbody><tr height="23" style="height: 17.4pt;"><td width="70" height="23" style="border: 0px black; border-image: none; width: 53pt; height: 17.4pt; background-color: transparent;"> 결론)</td><td width="70" style="border: 0px black; border-image: none; width: 53pt; background-color: transparent;"></td><td width="70" style="border: 0px black; border-image: none; width: 53pt; background-color: transparent;"></td><td width="70" style="border: 0px black; border-image: none; width: 53pt; background-color: transparent;"></td><td width="70" style="border: 0px black; border-image: none; width: 53pt; background-color: transparent;"></td><td width="70" style="border: 0px black; border-image: none; width: 53pt; background-color: transparent;"></td><td width="70" style="border: 0px black; border-image: none; width: 53pt; background-color: transparent;"></td><td width="70" style="border: 0px black; border-image: none; width: 53pt; background-color: transparent;"></td><td width="70" style="border: 0px black; border-image: none; width: 53pt; background-color: transparent;"></td><td width="70" style="border: 0px black; border-image: none; width: 53pt; background-color: transparent;"></td><td width="70" style="border: 0px black; border-image: none; width: 53pt; background-color: transparent;"></td><td width="70" style="border: 0px black; border-image: none; width: 53pt; background-color: transparent;"></td></tr><tr height="23" style="height: 17.4pt;"><td height="23" style="border: 0px black; border-image: none; height: 17.4pt; background-color: transparent; mso-ignore: colspan;" colspan="12">우리나라에서의 고도는 해발고도를 사용하기 때문에 지도에 있는 해발고도를 사용 하면된다</td></tr><tr height="23" style="height: 17.4pt;"><td height="23" style="border: 0px black; border-image: none; height: 17.4pt; background-color: transparent; mso-ignore: colspan;" colspan="7">다만 상대고도 즉 A지점과B지점은 높이차는 GPS고도를 사용해도 무방하다.</td><td style="border: 0px black; border-image: none; background-color: transparent;"></td><td style="border: 0px black; border-image: none; background-color: transparent;"></td><td style="border: 0px black; border-image: none; background-color: transparent;"></td><td style="border: 0px black; border-image: none; background-color: transparent;"></td><td style="border: 0px black; border-image: none; background-color: transparent;"></td></tr><tr height="23" style="height: 17.4pt;"><td height="23" style="border: 0px black; border-image: none; height: 17.4pt; background-color: transparent; mso-ignore: colspan;" colspan="6">사실 이것을 해결하기위한 앱도 나와있으나 정확하지 않다</td><td style="border: 0px black; border-image: none; background-color: transparent;"></td><td style="border: 0px black; border-image: none; background-color: transparent;"></td><td style="border: 0px black; border-image: none; background-color: transparent;"></td><td style="border: 0px black; border-image: none; background-color: transparent;"></td><td style="border: 0px black; border-image: none; background-color: transparent;"></td><td style="border: 0px black; border-image: none; background-color: transparent;"></td></tr><tr height="23" style="height: 17.4pt;"><td height="23" style="border: 0px black; border-image: none; height: 38px; background-color: transparent;"> ~웰빙~</td></tr></tbody></table></td></tr></tbody></table>