SPATIAL PATTERNS IN TEMPERATURE AND CHLOROPHYLL ON NANTUCKET SHOALS FROM AIRBORNE REMOTE-SENSING DATA, MAY 7-9, 1981
SPATIAL PATTERNS IN TEMPERATURE AND CHLOROPHYLL ON NANTUCKET SHOALS FROM AIRBORNE REMOTE-SENSING DATA, MAY 7-9, 1981
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DOI：
10.1357/002224085788437299
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发表时间：
1985-01-01
影响因子：
0.5
通讯作者：
ESAIAS, WE
中科院分区：
文献类型：
--
作者：
CAMPBELL, JW;ESAIAS, WE
利用多种统计技术对南塔基特浅滩温度和叶绿素的4幅航空测图的空间格局进行了分析。其目的是确定统计方法是否能够提供关于浅滩浮游植物动态的洞察。统计技术包括大规模趋势的协方差分析和去势数据的频谱分析。机载遥感器提供了观察0.5-2天尺度的时间变异性所必需的同时性。叶绿素、温度和深度之间的最大相关性出现在非零滞后处，这表明浅滩上的水向西移动，浮游植物的生长存在时间滞后。在一天中的同一时间和潮汐的阶段采集的数据中的协方差模式非常相似。两个不同区域的浮游植物斑块的叶绿素功率谱形状不同。在10-25公里尺度上，影响生长速度的养分水平差异可以解释这种差异。
Spatial patterns in 4 aerial mappings of temperature and chlorophyll over Nantucket Shoals were analyzed using a variety of statistical techniques. The goal was to determine whether statistical methods could provide insight concerning phytoplankton dynamics on the Shoals. Statistical techniques included a covariance analysis of large scale trends and a spectral analysis of detrended data. Airborne remote sensors had provided the necessary synopticity in which to observe temporal variability on scales of 0.5-2 days. Maximum correlations between chlorophyll, temperature and depth occurred at nonzero lags, suggesting westward movement of water over the Shoals and a time lag in phytoplankton growth. Covariance patterns in data taken at the same time of day and phase of tide are notably similar. Power spectra of chlorophyll in 2 distinct regions of phytoplankton patches were different in shape. Horizontal variation in nutrients affecting growth rates on scales of 10-25 km could account for the differences.