我正在使用MODISTools
R 中的包下载一些数据,但我遇到了错误。有时我的代码有效,有时则无效。我反复收到此错误,但找不到任何有关其含义的信息。这是我运行的代码:
coords <- c(lat = 38.4, lon = -121.0)
fPAR <- mt_subset(product = "MCD15A3H",
lat = coords[1],
lon = coords[2],
band = "Fpar_500m",
start = '2004-01-01',
end = '2010-01-01',
km_lr = 0,
km_ab = 0,
internal = TRUE,
progress = TRUE)
这是我运行代码后的错误:
Error: 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
或者代码运行后的错误:
Downloading chunks:
|============================================================================================ | 90%
Warning message:
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
然后它在下载整个数据集之前暂停执行。
我试过弄乱我的坐标、日期等的格式,但似乎没有任何效果。这些错误似乎非常随机。
任何想法将不胜感激!