CAJ | 학술논문

以香港近岸海域为研究区,基于2009~2012年HJ-1A/B CCD数据和实测数据,建立悬浮固体浓度遥感反演模型,运用地统计学方法对模型反演结果进行分析,探索研究区内悬浮固体浓度空间分布及其变异特征.结果表明：香港近岸海域北部深圳湾附近常年处于悬浮固体浓度的高值区,东北部珠江入海口海域悬浮固体浓度受季节影响明显,大屿山以南的南部海域的浓度值常年处于较低水平,并具有明显的季节特征.2009~2012年的地统计数据表明,香港近岸海域悬浮固体浓度值总体处于较低水平,月均值为12.25mg/L,由北向南递减趋势明显.全年大部分时间空间变异特征明显,空间自相关性较强,其中3月份的块金值/基台值最小,仅约为0.0005.
이향항근안해역위연구구,기우2009~2012년HJ-1A/B CCD수거화실측수거,건립현부고체농도요감반연모형,운용지통계학방법대모형반연결과진행분석,탐색연구구내현부고체농도공간분포급기변이특정.결과표명：향항근안해역북부심수만부근상년처우현부고체농도적고치구,동북부주강입해구해역현부고체농도수계절영향명현,대서산이남적남부해역적농도치상년처우교저수평,병구유명현적계절특정.2009~2012년적지통계수거표명,향항근안해역현부고체농도치총체처우교저수평,월균치위12.25mg/L,유북향남체감추세명현.전년대부분시간공간변이특정명현,공간자상관성교강,기중3월빈적괴금치/기태치최소,부약위0.0005.
This article studied the spatial distribution and the variability of suspended solids concentration (SSC) in the coast water of Hongkong leveraging the HJ-1A/B CCD data of 2009~2012and the measured data. The remote sensing inversion model had been set up. Based on which, the analysis was conducted by means of the geostatistical method. SSC in the north part of the area (i.e., the Shenzhen bay) was higher than other areas all the year around;SSC in the northeast part of area (i.e., the estuary of the Pearl River) fluctuated remarkably from seasons to seasons;SSC in the south of Lautau island was relatively lower all the year around, and fluctuated from seasons to seasons. The study of data from 2009to 2012indicated that the total SSC in the area was low. Specifically, the average SSC was 12.25mg/L, and SSC was higher in the north part and lower in the south part; SSC was characterized as remarkable variation in spatial and temporal dimensions. Besides, SCC showed a strong autocorrelation in spatial dimension, where the value of nugget/sill was lowest in March (0.0005).