Python directly read in USGS flow by given site number

Python packages are very powerful. Here is an example for hydrological data analysis. This small piece of code reads USGS flow by a given site number and store it as pandas DataFrame. You need to install “ulmo” first.

Original post is from here

import pandas as pd
import numpy as np
import ulmo

def importusgssite(siteno):
    sitename = {}
    sitename = ulmo.usgs.nwis.get_site_data(siteno, service="daily", period="all")
    sitename = pd.DataFrame(sitename['00060:00003']['values'])
    sitename['dates'] = pd.to_datetime(pd.Series(sitename['datetime']))
    sitename.set_index(['dates'],inplace=True)
    sitename[siteno] = sitename['value'].astype(float)
    sitename[str(siteno)+'qual'] = sitename['qualifiers']
    sitename = sitename.drop(['datetime','qualifiers','value'],axis=1)
    sitename = sitename.replace('-999999',np.NAN)
    sitename = sitename.dropna()
    #sitename['mon']=sitename.index.month
    return sitename

d = importusgssite('12472800');
d.plot(style='r', linewidth=1.0)

flowseries.png

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