in example 7.11:
variables:
float n1(lat,lon);
n1:standard_name="number_of_days_with_air_temperature_below_threshold";
n1:coordinates="threshold time";
n1:cell_methods="time: minimum within days time: sum over days";
float n2(lat,lon);
n2:standard_name="spell_length_of_days_with_air_temperature_below_threshold";
n2:coordinates="threshold time";
n2:cell_methods="time: minimum within days time: maximum over days";
float threshold;
threshold:standard_name="air_temperature";
threshold:units="degC";
double time;
time:climatology="climatology_bounds";
time:units="days since 2000-6-1";
double climatology_bounds(time,nv);
data: // time coordinates translated to date/time format
time="2008-1-16 6:00";
climatology_bounds="2007-12-1 6:00", "2000-8-2 6:00";
threshold=0.;
im somewhat surprised by seeing the "threshold" variable in the
coordinates attribute. I didnt see a discussion of this at
https://cf-pcmdi.llnl.gov/trac/ticket/33
can anyone explain what this means?
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