(1) after choose to hycom data set, choose NetcdfSubset download interface is a link to the page, such as below:
This page can only choose scattered data download, if you want to download a year or years of data, always can't a a dot,
(2) so I choose to use python file download more selenium, and about the specification of the selenium and the corresponding browser driver download on the https://blog.csdn.net/shiaohan/article/details/108834770 post made it very clear, after installed the corresponding library, as the chart, you can begin to write:
(3) fill in the corresponding address, in case one thousand added behind the driver. Implicitly_wait (time) for a period of waiting for
driver=webdriver. Chrome (' D: \ \ chromedriver \ \ chromedriver exe ') # Optional argument, if not specified will search path.
Driver. The get (' http://ncss.hycom.org/thredds/ncss/grid/GLBv0.08/expt_53.X/data/2008/dataset.html ')
Driver. Implicitly_wait (20) (4) then there is a web page other box selection, basic it is not difficult, when choosing the output format here appeared a drop-down selection box, is I use the select function, this function is explained in this https://www.cnblogs.com/w770762632/p/8745261.html has very good,
# click ele
Driver. Find_element_by_xpath ('//* [@ id="form"]/table/tbody/tr [1] [1]/td/blockquote/input [2] '). Click ()
# click S, T, U, V
Driver. Find_element_by_xpath ('//* [@ id="form"]/table/tbody/tr [1] [1]/td/blockquote/input [6] '). Click ()
Driver. Find_element_by_xpath ('//* [@ id="form"]/table/tbody/tr [1] [1]/td/blockquote/input [7] '). Click ()
Driver. Find_element_by_xpath ('//* [@ id="form"]/table/tbody/tr [1] [1]/td/blockquote/input [8] '). Click ()
Driver. Find_element_by_xpath ('//* [@ id="form"]/table/tbody/tr [1] [1]/td/blockquote/input [9] '). Click ()
Driver. Implicitly_wait (5)
# click Disable horizontal subsetting
Driver. Find_element_by_xpath ('//* [@ id="disableLLSubset"] '). Click ()
# input lat, lon
Driver. Find_element_by_xpath ('//* [@ id="latlonSubset"]/div [1]/input [1] '). The clear ()
Driver. Find_element_by_xpath ('//* [@ id="latlonSubset"]/div [1]/input [1] '). The send_keys (' 18 ')
Driver. Find_element_by_xpath ('//* [@ id="latlonSubset"]/div [2]/input [1] '). The clear ()
Driver. Find_element_by_xpath ('//* [@ id="latlonSubset"]/div [2]/input [1] '). The send_keys (' 105 ')
Driver. Find_element_by_xpath ('//* [@ id="latlonSubset"]/div [2]/input [3] '). The clear ()
Driver. Find_element_by_xpath ('//* [@ id="latlonSubset"]/div [2]/input [3] '). The send_keys (' 115 ')
Driver. Find_element_by_xpath ('//* [@ id="latlonSubset"]/div [3]/input [1] '). The clear ()
Driver. Find_element_by_xpath ('//* [@ id="latlonSubset"]/div [3]/input [1] '). The send_keys (' 9 ')
Driver. Implicitly_wait (1)
# click vertical stride
Driver. Find_element_by_xpath ('//* [@ id="inputVerticalStride"]/span '). Click ()
Driver. Implicitly_wait (1)
# click to add lat/lon variables
Driver. Find_element_by_xpath ('//* [@ id="form"]/table/tbody/tr [1] [2]/td/div [12]/input '). Click ()
# choose the output format
S=driver. Find_element_by_name (' accept ')
Select (s). Select_by_value (' netcdf ')
(5) after get the basic options, then there is the use cycle write time for batch download, considering the factors such as network fluctuation, I here is the monthly download,
# click single time, and the input data_time
N=0
For I in range (1, 31) :
N=n + 1
N=STR (I). Zfill (2)
='2008-01 -' keys + N + 'T12:00:00 Z'
Print (keys)
Driver. Find_element_by_xpath ('//* [@ id="singleTimeSubset"]/input '). The clear ()
Driver. Find_element_by_xpath ('//* [@ id="singleTimeSubset"]/input '). The send_keys (keys)
Driver. Implicitly_wait (10)
# click to submit
Driver. Find_element_by_xpath ('//* [@ id="form"]/table/tbody/tr [3]/td/input [1] '). Click ()
Time. Sleep (120)
(6) END