本文選題：衛(wèi)星測高　切入點：潮汐模型　出處：《海洋科學(xué)進(jìn)展》2016年03期

【摘要】：針對應(yīng)用高度計數(shù)據(jù)建立的海潮模型在淺海海域精度較低的現(xiàn)狀,提出采用移去-恢復(fù)技術(shù)聯(lián)合利用19a T/P、Jason-1衛(wèi)星原始軌道、變軌軌道高度計數(shù)據(jù)建立南海淺海海域高精度潮汐模型的方法。處理衛(wèi)星高度計數(shù)據(jù)時以平均海平面為基準(zhǔn)面,按緯差0.1°間隔采用沿跡分析提取南海海域原始軌道2 184個正常點和變軌軌道1 626個正常點;分別對原始軌道、變軌軌道正常點進(jìn)行調(diào)和分析以及響應(yīng)分析,得到潮汐主要分潮調(diào)和常數(shù);進(jìn)一步建立網(wǎng)格潮汐模型,討論了不同分辨率潮汐模型的精度差異�；隍灣闭緮�(shù)據(jù)集結(jié)果運用移去-恢復(fù)技術(shù)對所建潮汐模型進(jìn)行改進(jìn),改進(jìn)后潮汐模型4個最主要分潮O(jiān)_1,K_1,M_2和S_2的RMS分別提高至7.76,9.40,13.86和8.51cm,RSS達(dá)到20.32cm,表明移去-恢復(fù)技術(shù)能夠明顯改善潮汐模型在淺海海域的精度。
[Abstract]:In view of the low accuracy of the ocean tide model established by using altimeter data in shallow waters, a joint use of removing-recovery technique to utilize the original orbit of the 19a T / P Pfi-Jason-1 satellite is proposed.The method of establishing a high accuracy tidal model in the shallow sea area of the South China Sea by using the orbital altimeter data.In processing the satellite altimeter data, the mean sea level is taken as the datum, and the original orbit of the South China Sea area is extracted by track analysis from the original orbit of 2,184 normal points and the orbiting orbit of 1,626 normal points according to the latitude difference of 0.1 擄, respectively, for the original orbit,The harmonic analysis and response analysis of the normal point of the orbit are carried out to obtain the main tidal harmonic constants and the grid tidal model is established and the accuracy difference of the tidal model with different resolution is discussed.Based on the results of tidal station data set, the moving-recovery technique is used to improve the tidal model.The RMS of the four main tide-compartments of the improved tidal model, O _ S _ 1 / K _ T _ 2 and S _ s _ 2, are increased to 7.76 ~ 9.40 ~ 13.86 and 8.51 cm ~ (-1) respectively, which indicates that the moving-recovery technique can obviously improve the accuracy of the tidal model in the shallow sea area.
【作者單位】： 山東科技大學(xué)測繪科學(xué)與工程學(xué)院;國家海洋局第一海洋研究所;
【基金】：中央級公益性科研院所基本科研業(yè)務(wù)費專項資金資助項目——基于GNSS浮標(biāo)的衛(wèi)星高度計定標(biāo)技術(shù)研究(2014G21) 國家海洋局科技司專項業(yè)務(wù)費項目——開展衛(wèi)星海洋測繪應(yīng)用(WX0316005) 國家國際科技合作專項——自主星載高度計海面在軌絕對定標(biāo)關(guān)鍵技術(shù)研究(2014DFA21710)
【分類號】：P731.23

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