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Open sshuttle connection to host "cluster-r730-1" (see Access FLARECAST cluster (sshuttle)).
Open http://cluster-r730-1:8001/ui in a browser.
To download sharp_720s images over a period of time you have to set the series parameter and the start and end date. Optionally, you can request the available hmi-meta data by the corresponding meta parameter, which may requires some time. After trying it out you should see the request url which you can use in your python code:
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# define the query parameter
start_date = '2015-12-11T00:00:00Z'
end_date = '2015-12-12T00:00:00Z'
incl_meta = 'false'
# retrieving list of SHARP images
print('loading SHARP list...')
sharp_listresponse = requests.get("http://cluster-r730-1:8001/HMI/hmi.sharp_720s?start=%s&end=%s&meta=%s" % (start_date, end_date, incl_meta)).json()
sharp_list = response['data']
# extract specific properties of the first SHARP image
sharp_image = 0
first_sharp_date = sharp_list[sharp_image]['date__obs']
first_sharp_urls = sharp_list[sharp_image]['urls'] |
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# define the query parameter
sharp_image = 5601499
fields = ['area', 'cmask', 'distcoef']
# retrieving list of meta data
print('loading meta data...')
meta_dataresponse = requests.get("http://cluster-r730-1:8001/HMI/hmi.sharp_720s/meta/%s?fields=%s" % (str(sharp_image), ','.join(fields))).json()
meta_data = response['data'] |
Downloading Images
With the metadata it is now possible to download the actual images. To do this we have written a tiny function which needs a url as parameter and downloads the file. The image name will be obtained from the header of the http response. The files are written in to the same folder where the script is.
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