When I explore the document of WeatherData
of wolfram document center. It is said that WeatherData
has properties of visibility. But when I doing it in mathematica, it seems can not get the value of different places.
In[5] := WeatherData["Singapore", "Visibility"]
Out[5] = Missing["NotAvailable"]
In[6] := WeatherData["Singapore", "Pressure"]
Out[6] = Quantity[1011, "Millibars"]
In[7] := WeatherData["Singapore", "Temperature"]
Out[7] = Quantity[30., "DegreesCelsius"]
In[8] := WeatherData["Shanghai", "Visibility"]
Out[8] = Missing["NotAvailable"]
In[9] := WeatherData["Beijing", "Visibility"]
Out[9] = Missing["NotAvailable"]
In[10]:= WeatherData["Beijing", "Temperature"]
Out[10] = Quantity[22., "DegreesCelsius"]
In[11] := WeatherData["NewYork", "Visibility"]
Out[11] = Missing["NotAvailable"]
In[12] := WeatherData["NewYork", "Temperature"]
Out[12] = Quantity[20., "DegreesCelsius"]
So the data of visibility seems to be missing for variable cities. Is it removed from the current version of Mathematica or can anyone get the visibility data of these cities?
I am using Mathematica version 10.0.1