【摘要】：針對(duì)近海區(qū)域海潮變化復(fù)雜且海潮負(fù)荷效應(yīng)顯著,而全球海潮模型在近海區(qū)域精度較低的問(wèn)題,該文提出了將全球海潮模型NAO.99b和區(qū)域模型osu.chinasea.2010相結(jié)合,分析海潮對(duì)中國(guó)大陸及周邊地區(qū)IGS站的影響。使用GAMIT軟件解算IGS站實(shí)測(cè)數(shù)據(jù),通過(guò)海潮負(fù)荷計(jì)算軟件SPOTL對(duì)解算結(jié)果進(jìn)行改正,并對(duì)改正效果進(jìn)行對(duì)比和分析。結(jié)果表明,海潮負(fù)荷對(duì)中國(guó)及周邊區(qū)域站點(diǎn)的影響主要體現(xiàn)在垂直方向,對(duì)一些站點(diǎn)的影響可以達(dá)到厘米級(jí);海潮負(fù)荷對(duì)站點(diǎn)坐標(biāo)的改正效果明顯,特別是日本的種子島站改正效果接近30%;站點(diǎn)改正效果從沿海到內(nèi)陸逐漸減弱。
[Abstract]:In order to solve the problem that the variation of sea tide is complex and the effect of tidal load is significant in offshore area, the global tidal model (NAO.99b) is combined with the regional model (osu.chinasea.2010) to solve the problem of low accuracy of global tidal model in offshore area. The influence of sea tide on IGS stations in and around China is analyzed. The GAMIT software is used to calculate the measured data of IGS station, and the result is corrected by the sea tide load calculation software SPOTL, and the correction effect is compared and analyzed. The results show that the influence of tidal load on the stations in China and its surrounding areas is mainly in the vertical direction, and the influence on some stations can reach centimeter level. The correction effect of sea tide load on the coordinates of the station is obvious, especially the correction effect of the Zeidao station in Japan is close to 30%, and the correction effect of the station gradually weakens from the coast to the inland.
【作者單位】： 中南大學(xué)地球科學(xué)與信息物理學(xué)院;
【基金】：國(guó)家自然科學(xué)基金項(xiàng)目(41404013,U1531128)
【分類(lèi)號(hào)】：P228.4;P731.23

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