Plot temperature patterns from NC files

조회 수: 6 (최근 30일)
Giulia
Giulia 2023년 2월 21일
답변: Ajay Gajulapally 2023년 3월 1일
I need to look at temperature patterns within a season (April till September). So far I have downloaded CMEMS NC files showing temperature data for the whole month of April (30 nc files total), as downloading it for the whole season takes enourmous time. Each nc files contains:
Variables:
time
Size: 24x1
Dimensions: time
Datatype: double
Attributes:
axis = 'T'
standard_name = 'time'
long_name = 'Validity time'
calendar = 'Gregorian'
units = 'seconds since 1970-01-01T00:00:00Z'
lat
Size: 1240x1
Dimensions: lat
Datatype: single
Attributes:
axis = 'Y'
standard_name = 'latitude'
units = 'degrees_north'
nav_model = 'grid_T'
cell_methods = 'longitude: mean'
long_name = 'latitude'
lon
Size: 958x1
Dimensions: lon
Datatype: single
Attributes:
axis = 'X'
standard_name = 'longitude'
units = 'degrees_east'
nav_model = 'grid_T'
cell_methods = 'latitude: mean'
long_name = 'longitude'
thetao
Size: 958x1240x33x24
Dimensions: lon,lat,depth,time
Datatype: int16
Attributes:
_FillValue = -32768
missing_value = -32768
scale_factor = 0.001
add_offset = 25
standard_name = 'sea_water_potential_temperature'
long_name = 'Sea Water Potential Temperature'
units = 'degrees_C'
valid_min = -30000
valid_max = 30000
depth
Size: 33x1
Dimensions: depth
Datatype: single
Attributes:
axis = 'Z'
standard_name = 'depth'
units = 'm'
positive = 'down'
long_name = 'depth'
I think the evolution of temps at the mooring location through a year would be a good place to start. You could then look at e.g., weekly means for a transect through the mooring location from spring to autumn.
I am aiming to select a specific location within the lat and lon space, then observe temperature patterns (e.g. daily and weekly surface to bottom temperature difference, SSTs, bottom temps).
My question is how do I group all the temperature data for the month (or for the season later) into one file; and what plot function should I use to observe temperature patterns?
New to matlab so all help will be extremely appreciated!
Thanks a lot!!

답변 (1개)

Ajay Gajulapally
Ajay Gajulapally 2023년 3월 1일

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