The generated netCDF file should be CF-compliant

[hans-permana]

A check has been performed in one of the generated data cube files using an online checker (http://puma.nerc.ac.uk/cgi-bin/cf-checker.pl) and there are a couple of warnings:

CHECKING NetCDF FILE: /tmp/10715.nc
=====================
WARNING: Cannot determine CF version from the Conventions attribute; checking against latest CF version: CF-1.6
Using CF Checker Version 2.0.9
Checking against CF Version CF-1.6
Using Standard Name Table Version 30 (2015-12-03T08:05:16Z)
Using Area Type Table Version 3 (8 July 2015)

WARNING (2.6.1): No 'Conventions' attribute present

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Checking variable: lat
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WARNING (3): No standard_name or long_name attribute specified

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Checking variable: start_time
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WARNING (3): No standard_name or long_name attribute specified
INFO: attribute 'calendar' is being used in a non-standard way

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Checking variable: BurntArea
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ERROR (8.1): BurntArea must be of type byte, short or int

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Checking variable: lon
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WARNING (3): No standard_name or long_name attribute specified

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Checking variable: end_time
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WARNING (3): No standard_name or long_name attribute specified
INFO: attribute 'calendar' is being used in a non-standard way


ERRORS detected: 1
WARNINGS given: 6
INFORMATION messages: 2

[forman]

@hans-permana: check if we can automate CF-compliancy checks