Unverified Commit 8df0e487 authored by David Hoese's avatar David Hoese
Browse files

Copy ceilometer code from old subversion repos

parent af5bc944
"""This module holds all directory/path/URL information for metobs.ceilo
packages. This file should be the only place that holds this static information.
This file should not do any file manipulation at all, only return strings or pass
other static information such as what plot number goes with what data.
This module will check for environment variables to create constants of PATHS
and URL bases. It also has functions for getting file locations for any file
for a specified day.
"""
import os
import re
from datetime import datetime, timedelta
from metobs.util import RODict, CONFIG as c
CEILO_INCOMING_DIR = os.environ.get( 'CEILO_INCOMING_DIR', '/beach/incoming/Instrument_Data/METOBS/RIG/Ceilo/raw')
CEILO_PRAW_DIR = os.environ.get( 'CEILO_PRAW_DIR', '/beach/raw/aoss/ceilo')
CEILO_CACHE_DIR = os.environ.get( 'CEILO_CACHE_DIR', '/beach/cache/aoss/ceilo')
CEILO_LATEST_DIR = os.environ.get( 'CEILO_LATEST_DIR', '/beach/cache/aoss/ceilo')
CEILO_DIR_FORMAT = os.environ.get( 'CEILO_DIR_FORMAT', '%Y/%m')
CEILO_ASCII_LOC = os.environ.get( 'CEILO_ASCII_LOC', '/beach/cache/aoss/ceilo')
CEILO_NC_LOC = os.environ.get( 'CEILO_NC_LOC', '/beach/cache/aoss/ceilo')
CEILO_IMG_LOC = os.environ.get( 'CEILO_IMG_LOC', 'http://metobs.ssec.wisc.edu/pub/cache/aoss/ceilo')
inst = 'ceilo'
RE_DIGITS = re.compile(r'\d+')
def get_incoming_dir():
"Return incoming directory for specified date"
return os.path.join( CEILO_INCOMING_DIR )
def get_praw_dir(when = None):
"Return raw directory for specified date and data_type"
when = when or datetime.now()
return os.path.join( CEILO_PRAW_DIR, when.strftime( CEILO_DIR_FORMAT ) )
def get_sraw_dir(when = None):
"Return raw directory for specified date and data_type"
raise NotImplementedError("This function is not used anymore, there should only be one primary storage location")
#when = when or datetime.now()
#return os.path.join( CEILO_SRAW_DIR, when.strftime( CEILO_DIR_FORMAT ) )
def get_cache_dir(data_type, when = None):
"Return cache directory for specified date and data_type"
when = when or datetime.now()
return os.path.join( CEILO_CACHE_DIR, data_type, when.strftime( CEILO_DIR_FORMAT ) )
def get_latest_dir():
"Return latest directory"
return os.path.join( CEILO_LATEST_DIR )
def get_ascii_filename(when = None, site="rig", description=""):
"Return the standard filename of the ascii file for the specified date"
when = when or datetime.now()
return c.get_filename(site, inst, when, ext='ascii', description=description)
def get_ascii_url(when = None, site="rig", description=""):
"Return the standard url of the ascii file for the specified date"
when = when or datetime.now()
return os.path.join(CEILO_ASCII_LOC, 'ascii', when.strftime(CEILO_DIR_FORMAT),
get_ascii_filename(when, site=site, description=description))
def get_nc_filename(when = None, site="rig", description=""):
"Return the standard filename of the netCDF file for the specified date"
when = when or datetime.now()
return c.get_filename(site, inst, when, ext='nc', description=description)
def get_nc_url(when = None, site="rig", description=""):
"Return the standard url of the netCDF file for the specified date"
when = when or datetime.now()
return os.path.join(CEILO_NC_LOC, 'nc', when.strftime(CEILO_DIR_FORMAT),
get_nc_filename(when, site=site, description=description))
def get_img_filename(begin, end, ptype=1, tag='', site="rig", description=""):
"Return the standard filename of the image that goes from begin to end"
pname = _handle_plot_type(ptype)
return c.get_filename(site, inst, begin, end=end, ext="png", plotname=pname, description=description, tag=tag)
def get_quicklook_filename(begin, end, ptype=1, site='rig', description=''):
return get_img_filename(begin, end, ptype, tag='', site=site, description=description)
def get_thumbnail_filename(begin, end, ptype=1, site='rig', description=''):
return get_img_filename(begin, end, ptype, tag='tn', site=site, description=description)
def get_img_url(begin, end, ptype=1, tag='', site="rig", description=""):
"Return the standard url of the image that goes from begin to end"
return os.path.join(CEILO_IMG_LOC, 'img', begin.strftime(CEILO_DIR_FORMAT),
get_img_filename(begin,end,ptype,tag=tag, site=site, description=description))
def get_quicklook_url(begin, end, ptype=1, site='rig', description=''):
return get_img_url(begin, end, ptype, tag='', site=site, description=description)
def get_thumbnail_url(begin, end, ptype=1, site='rig', description=''):
return get_img_url(begin, end, ptype, tag='tn', site=site, description=description)
def rename_incoming(incoming_file, site='rig', description=''):
file_date = datetime(*tuple( [ int(x) for x in RE_DIGITS.findall(incoming_file) ] ))
present_date = datetime.now()
praw = get_praw_dir(when = file_date)
cache = get_cache_dir('ascii', when = file_date)
rn = get_ascii_filename(when = file_date, site=site, description=description)
remove = file_date.date() < (present_date - timedelta(days=30)).date()
return praw,cache,rn,remove
def get_type_name():
return RODict({1:'Backscatter',
2:'Cloud Base Height',
3:'Vertical Visibility'})
def _handle_plot_type(plottype=1):
if plottype == 1:
return ''
elif plottype == 2:
return ''
elif plottype == 3:
return ''
else:
raise ValueError("Plot type must be between 1-3")
__import__('pkg_resources').declare_namespace(__name__)
__docformat__ = 'Epytext'
import os
from metobs.ceilo import CONFIG as c
instrument_name = 'ceilo'
def get_ascii_name(dt, site='rig'):
"""
Make a standard filename for a tower ascii file.
@type dt: datetime
@param dt: datetime of the url to generate.
@type site: str
@param site: Name of an implemented instrument site
"""
return c.get_ascii_filename(dt)
def get_nc_name(dt, site='rig'):
"""
Make a standard filename for a ceilometer netcdf file.
@type dt: datetime
@param dt: datetime of the url to generate.
@type site: str
@param site: Name of an implemented instrument site
"""
return c.get_nc_filename(dt)
def get_thumbnail_name(begin, end=None, site='rig', plottype=1):
"""Make a standard filename for a ceilometer image thumbnail file.
"""
return c.get_image_filename(begin, end, ptype=plottype, tag='tn')
def get_nc_url(dt, site='rig', host=None):
"""
Get a URL to a ceilometer NetCDF file.
@type dt: datetime
@param dt: datetime of the url to generate.
@type site: str
@param site: Name of an implemented instrument site
@rtype: str
@return: A full URL suitable for OPeNDAP access
"""
return c.get_nc_url(dt)
def get_ascii_url(dt, site="rig", host=None):
"""Get a URL to a ceilometer ASCII file on the opendap server
@type dt: datetime
@param dt: datetime of the url to generate.
@type site: str
@param site: Name of an implemented instrument site
@rtype: str
@return: A full URL suitible for HTTP access
"""
return c.get_ascii_url(dt)
def get_thumbnail_url(begin, end=None, site="rig", host=None, plottype=1):
return c.get_image_url(begin, end, ptype=plottype, tag='tn')
def get_image_url(begin, end=None, site="rig", host=None, plottype=1):
return c.get_image_url(begin, end, ptype=plottype, tag='')
def get_type_name():
return c.get_type_name()
def _handle_plottype(plottype=1):
return c._handle_plot_type(plottype)
<?xml version="1.0" encoding="UTF-8"?>
<netcdf xmlns="http://www.unidata.ucar.edu/namespaces/netcdf/ncml-2.2">
<dimension name="time" isUnlimited="true" />
<dimension name="range" length="256" />
<dimension name="string_len" length="8" />
<attribute name="Conventions" type="String" value="CF-1.3" />
<attribute name="title" type="String" value="Rooftop Instrument Group(RIG) Ceilometer obervations" />
<attribute name="institution" type="String" value="University of Wisconsin
Space Science and Engineering Center
1225 W. Dayton St.
Madison, WI 53706" />
<attribute name="source" type="String" value="surface observation" />
<attribute name="history" type="String" value="" />
<attribute name="references" type="String" value="http://metobs.ssec.wisc.edu" />
<attribute name="comment" type="String" value="" />
<attribute name="site_id" type="String" value="" />
<attribute name="facility_id" type="String" value="" />
<attribute name="sample_int" type="String" value="15 seconds" />
<attribute name="serial_number" type="String" value="" />
<attribute name="Mentor_QC_Field_Information" type="String" value="For each qc field interpret the values as follows:
Basic mentor QC checks (bit values):
==========================================
0x0 = value is within the specified range
0x1 = value is equal to 'missing_value'
0x2 = value is less than the 'valid_min'
0x4 = value is greater than the 'valid_max'
0x8 = value failed the 'valid_delta' check
If the value is a 'missing_value' no min, max, or delta checks are performed.
The delta checks are done by comparing each data value to the one just
prior to it in time. If a previous data value does not exist or is a
'missing_value' the delta check will not be performed.
Note that the delta computation for multi-dimensioned data compares the
absolute value between points in the same spatial location to the previous
point in time.
If the associated non-QC field does not contain any mentor-specified minimum,
maximum, or delta information a qc_field is not generated.
" />
<variable name="base_time" type="int">
<attribute name="long_name" type="String" value="Time of first record in Epoch" />
<attribute name="units" type="String" value="seconds since 1970-1-1 0:00:00 0:00" />
<attribute name="_FillValue" type="int" value="-9999" />
</variable>
<variable name="time_offset" shape="time" type="int">
<attribute name="long_name" type="String" value="Time offset from base_time" />
<attribute name="units" type="String" value="" />
<attribute name="_FillValue" type="int" value="-9999" />
</variable>
<variable name="time" shape="time" type="int">
<attribute name="long_name" type="String" value="Time offset from midnight" />
<attribute name="units" type="String" value="" />
<attribute name="_FillValue" type="int" value="-9999" />
</variable>
<variable name="range" shape="range" type="double">
<attribute name="long_name" type="String" value="Distance to the center of the corresponding range bin." />
<attribute name="units" type="String" value="m" />
<attribute name="missing_value" type="double" value="-9999." />
<attribute name="_FillValue" type="double" value="-9999." />
<attribute name="accuracy" type="String" value="30 meters" />
</variable>
<variable name="first_cbh" shape="time" type="double">
<attribute name="long_name" type="String" value="Lowest cloud base height detected." />
<attribute name="standard_name" type="String" value="cloud_base_altitude" />
<attribute name="units" type="String" value="m" />
<attribute name="valid_min" type="double" value="0." />
<attribute name="valid_max" type="double" value="7620." />
<attribute name="missing_value" type="double" value="-9999." />
<attribute name="_FillValue" type="double" value="-9999." />
<attribute name="valid_min" type="double" value="0" />
<attribute name="valid_max" type="double" value="7620." />
<attribute name="description" type="String" value=" If detection_status = 1, 2 or 3,
lowest cloud base height measured.
If detection_status = 4 this value
will be stored as -9999 and a value
for vertical_visibility will be stored.
If detection_status = 0 or 5, -9999 will
be stored for this value and vertical_visibility.
(5 slashes were read from field)." />
</variable>
<variable name="vertical_visibility" shape="time" type="double">
<attribute name="long_name" type="String" value="Vertical visibility" />
<attribute name="standard_name" type="String" value="visibility_in_air" />
<attribute name="units" type="String" value="m" />
<attribute name="valid_min" type="double" value="0." />
<attribute name="valid_max" type="double" value="7620." />
<attribute name="missing_value" type="double" value="-9999." />
<attribute name="_FillValue" type="double" value="-9999." />
<attribute name="description" type="String" value="This field will only be stored if detection_status
is = 4. In all other cases, a value of -9999 will
be recorded." />
</variable>
<variable name="second_cbh" shape="time" type="double">
<attribute name="long_name" type="String" value="Second lowest cloud base height" />
<attribute name="standard_name" type="String" value="cloud_base_altitude" />
<attribute name="units" type="String" value="m" />
<attribute name="missing_value" type="double" value="-9999." />
<attribute name="_FillValue" type="double" value="-9999." />
<attribute name="valid_min" type="double" value="0" />
<attribute name="valid_max" type="double" value="7620." />
<attribute name="description" type="String" value=" If detection_status = 2 or 3, a second
cloud base was detected. This value is
the distance from the ground to the second
cloud base.
If detection_status = 4, -9999 will be recorded
here and a value for alt_highest_signal
will be recorded.
If detection_status = 5, -9999 will be recorded
for this value and for alt_highest_signal" />
</variable>
<variable name="alt_highest_signal" shape="time" type="double">
<attribute name="long_name" type="String" value="Altitude of highest signal" />
<attribute name="units" type="String" value="m" />
<attribute name="missing_value" type="double" value="-9999." />
<attribute name="_FillValue" type="double" value="-9999." />
<attribute name="valid_min" type="double" value="0" />
<attribute name="valid_max" type="double" value="7620." />
<attribute name="description" type="String" value=" If detection_status = 4, this value is the
distance from the ground to the highest signal
detected.
If detection_status = 0, 1, 2, 3 or 5, -9999
will be recorded." />
</variable>
<variable name="third_cbh" shape="time" type="double">
<attribute name="long_name" type="String" value="Third cloud base height" />
<attribute name="standard_name" type="String" value="cloud_base_altitude" />
<attribute name="units" type="String" value="m" />
<attribute name="missing_value" type="double" value="-9999." />
<attribute name="_FillValue" type="double" value="-9999." />
<attribute name="valid_min" type="double" value="0" />
<attribute name="valid_max" type="double" value="7620." />
<attribute name="description" type="String" value=" If detection_status = 3, this is the distance
from the ground to the base of the highest
cloud.
If detection = 0, 1, 2, 4 or 5, -9999 will be
stored here. In this case, ///// was read from field." />
</variable>
<variable name="sum_backscatter" shape="time" type="double">
<attribute name="long_name" type="String" value="SUM of detected and normalized backscatter" />
<attribute name="units" type="String" value="1.0 sr-1" />
<attribute name="valid_min" type="double" value="0." />
<attribute name="valid_max" type="double" value="999." />
<attribute name="missing_value" type="double" value="-9999." />
<attribute name="_FillValue" type="double" value="-9999." />
<attribute name="description" type="String" value="Multiplied by scaling factor
times 10^4. At scaling factor 100 the sum range,
which is 0 to 999, this corresponds to integrated
backscatter, which ranges from 0 to 0.0999 srad^-1" />
</variable>
<variable name="backscatter" shape="time range" type="double">
<attribute name="long_name" type="String" value="Backscatter" />
<attribute name="units" type="String" value="1.0E-7 m-1.sr-1" />
<attribute name="missing_value" type="double" value="-9999." />
<attribute name="_FillValue" type="double" value="-9999." />
<attribute name="description" type="String" value="Data is range and sensitivity normalized backscatter, units, (10000 - srad - km)^-1 unless otherwise scaled by
scaling parameter.
The length of each range bin corresponds to
(c/2)*(200ns +/14 ns) = (approximately 30 m)." />
</variable>
<variable name="detection_status" shape="time" type="int">
<attribute name="long_name" type="String" value="Detection status." />
<attribute name="missing_value" type="int" value="-9999" />
<attribute name="_FillValue" type="int" value="-9999" />
<attribute name="valid_min" type="int" value="0" />
<attribute name="valid_max" type="int" value="5" />
<attribute name="description" type="String" value="0=No significant backscatter
1=One cloud base detected
2=Two cloud bases detected
3=Three cloud bases detected
4=Full obscuration determined but no cloud
base detected.
5=Some obscuration detected but determined
to be transparent." />
</variable>
<variable name="status_flag" shape="time" type="char">
<attribute name="long_name" type="String" value="Ceilometer status indicator." />
<attribute name="missing_value" type="char" value=" " />
<attribute name="description" type="String" value="Warning and alarm information as follows
0 = Self-check OK
W = At least one Warning active, no Alarms
A = At least one Alarm active" />
</variable>
<variable name="laser_pulse_energy" shape="time" type="double">
<attribute name="long_name" type="String" value="Laser pulse energy" />
<attribute name="units" type="String" value="%" />
<attribute name="valid_min" type="double" value="0." />
<attribute name="valid_max" type="double" value="999." />
<attribute name="missing_value" type="double" value="-9999." />
<attribute name="_FillValue" type="double" value="-9999." />
<attribute name="comment" type="String" value="Percentage of nominal factory setting." />
</variable>
<variable name="laser_temperature" shape="time" type="double">
<attribute name="long_name" type="String" value="Laser temperature" />
<attribute name="units" type="String" value="degC" />
<attribute name="valid_min" type="double" value="-50." />
<attribute name="valid_max" type="double" value="99." />
<attribute name="missing_value" type="double" value="-9999." />
<attribute name="_FillValue" type="double" value="-9999." />
</variable>
<variable name="receiver_sensitivity" shape="time" type="double">
<attribute name="long_name" type="String" value="Receiver sensitivity" />
<attribute name="units" type="String" value="%" />
<attribute name="valid_min" type="double" value="0." />
<attribute name="valid_max" type="double" value="999." />
<attribute name="missing_value" type="double" value="-9999." />
<attribute name="_FillValue" type="double" value="-9999." />
<attribute name="comment" type="String" value="Percentage of nominal factory setting." />
</variable>
<variable name="window_contamination" shape="time" type="double">
<attribute name="long_name" type="String" value="Window contamination" />
<attribute name="units" type="String" value="0.0010 V" />
<attribute name="valid_min" type="double" value="0." />
<attribute name="valid_max" type="double" value="2500." />
<attribute name="_FillValue" type="double" value="-9999." />
<attribute name="comment" type="String" value="Millivolts measured at the internal ADC input" />
</variable>
<variable name="tilt_angle" shape="time" type="double">
<attribute name="long_name" type="String" value="Tilt angle" />
<attribute name="units" type="String" value="degrees" />
<attribute name="valid_min" type="double" value="-15." />
<attribute name="valid_max" type="double" value="90." />
<attribute name="valid_delta" type="double" value="1." />
<attribute name="missing_value" type="double" value="-9999." />
<attribute name="_FillValue" type="double" value="-9999." />
<attribute name="description" type="String" value="If Angle Correction is Off detection values are distances not altitudes" />
</variable>
<variable name="background_light" shape="time" type="double">
<attribute name="long_name" type="String" value="Background light" />
<attribute name="units" type="String" value="0.0010 V" />
<attribute name="valid_min" type="double" value="0." />
<attribute name="valid_max" type="double" value="2500." />
<attribute name="missing_value" type="double" value="-9999." />
<attribute name="_FillValue" type="double" value="-9999." />
<attribute name="comment" type="String" value="Millivolts measured at the internal ADC input" />
</variable>
<variable name="measurement_parameters" shape="time string_len" type="char">
<attribute name="long_name" type="String" value="6 character string describing instrument measurement parameters" />
<attribute name="missing_value" type="String" value="-" />
<attribute name="comment" type="String" value="(L)ong/(S)hort - (F)req - pulse qty r ^(7) + 1
- gain (H)igh/(L)ow - bandwidth (N)arrow/(W)ide -
sampling (5) / (1)0 / (2)0 Mhz" />
</variable>
<variable name="status_string" shape="time string_len" type="char">
<attribute name="long_name" type="String" value="Warning and alarm status bits" />
<attribute name="missing_value" type="String" value="-" />
<attribute name="comment1" type="String" value="Has Form FEDCBA98. Each character is a hexadecimal representation of
four bits, altogether 32 bits. See additional comments for interpretation." />
<attribute name="commentF" type="String" value="(8000 0000) = Laser temperature shut-off(A)
(4000 0000)= Laser failure(A)
(2000 0000)= Receiver failure(A)
(1000 0000)= Voltage failure(A)" />
<attribute name="commentE" type="String" value="(0800 0000) = Profile error(A)" />
<attribute name="commentD" type="String" value="(0080 0000) = Window contaminated(W)
(0040 0000)= Battery low(W)
(0020 0000)= Laser power low(W)
(0010 0000)= Laser temperature high or low(W)" />
<attribute name="commentC" type="String" value="(0008 0000) = Internal temperature high or low(W)
(0004 0000)= Voltage high or low(W)
(0002 0000)= Relative humidity is > 85 % (W)
(0001 0000)= Receiver optical cross-talk compensation poor(W)" />
<attribute name="commentB" type="String" value="(0000 8000) = Fan suspect(W)
(0000 4000)= Profile warning(W)" />
<attribute name="commentA" type="String" value="(0000 0800) = Blower is ON
(0000 0400)= Blower heater is ON
(0000 0200)= Internal heater is ON
(0000 0100)= Units are METERS if ON, else FEET." />
<attribute name="comment9" type="String" value="(0000 0080) = Polling mode is ON
(0000 0040)= Working from battery
(0000 0020)= Single sequence mode is ON
(0000 0010)= Manual Settings are effective." />
<attribute name="comment8" type="String" value="(0000 0008) = Tilt angle is > 45 degrees." />
</variable>
<variable name="lat" type="double">
<attribute name="standard_name" type="String" value="latitude" />
<attribute name="long_name" type="String" value="north latitude" />
<attribute name="units" type="String" value="degrees_north" />
<attribute name="valid_min" type="double" value="-90." />
<attribute name="valid_max" type="double" value="90." />
<attribute name="_FillValue" type="double" value="-9999." />
</variable>
<variable name="lon" type="double">
<attribute name="standard_name" type="String" value="longitude" />
<attribute name="long_name" type="String" value="east longitude" />
<attribute name="units" type="String" value="degrees_east" />
<attribute name="valid_min" type="double" value="-180." />
<attribute name="valid_max" type="double" value="180." />
<attribute name="_FillValue" type="double" value="-9999." />
</variable>
<variable name="alt" type="double">
<attribute name="standard_name" type="String" value="altitude" />
<attribute name="long_name" type="String" value="altitude" />
<attribute name="positive" type="String" value="up" />
<attribute name="units" type="String" value="m" />
<attribute name="_FillValue" type="double" value="-9999." />
</variable>
<variable name="qc_time" shape="time" type="int">
<attribute name="long_name" type="String" value="Results of quality checks on sample time" />
<attribute name="description" type="String" value="The qc_time values are calculated by comparing each sample
time with the previous time (i.e. delta_t = t[n] - t[n-1]).
If the 'qc_check_prior' flag is set the first sample time
from a new raw file will be compared against the time just
previous to it in the stored data. If the 'qc_check_prior'
flag is not set the qc_time value for the first sample time
will be set to 0
The qc_time bit values are as follows:
=========================================================
0x0 = delta time is within the specified range
0x1 = delta time is equal to 0, duplicate sample times
0x2 = delta time is less than the 'delta_t_lower_limit'
0x4 = delta time is greater than the 'delta_t_upper_limit'
" />
<attribute name="delta_t_lower_limit" type="int" value="12" />
<attribute name="delta_t_upper_limit" type="int" value="18" />
<attribute name="prior_sample_flag" type="int" value="1" />
<attribute name="_FillValue" type="int" value="-9999" />
</variable>
<variable name="qc_first_cbh" shape="time" type="int">
<attribute name="long_name" type="String" value="Quality check results on field: Lowest cloud base height detected." />
<attribute name="_FillValue" type="int" value="-9999" />
</variable>
<variable name="qc_vertical_visibility" shape="time" type="int">
<attribute name="long_name" type="String" value="Quality check results on field: Vertical visibility" />
<attribute name="_FillValue" type="int" value="-9999" />
</variable>
<variable name="qc_second_cbh" shape="time" type="int">
<attribute name="long_name" type="String" value="Quality check results on field: Second lowest cloud base height" />
<attribute name="_FillValue" type="int" value="-9999" />
</variable>
<variable name="qc_alt_highest_signal" shape="time" type="int">
<attribute name="long_name" type="String" value="Quality check results on field: Altitude of highest signal" />
<attribute name="_FillValue" type="int" value="-9999" />
</variable>
<variable name="qc_third_cbh" shape="time" type="int">
<attribute name="long_name" type="String" value="Quality check results on field: Third cloud base height" />
<attribute name="_FillValue" type="int" value="-9999" />
</variable>
<variable name="qc_laser_pulse_energy" shape="time" type="int">
<attribute name="long_name" type="String" value="Quality check results on field: Laser pulse energy" />
<attribute name="_FillValue" type="int" value="-9999" />
</variable>
<variable name="qc_laser_temperature" shape="time" type="int">
<attribute name="long_name" type="String" value="Quality check results on field: Laser temperature" />
<attribute name="_FillValue" type="int" value="-9999" />
</variable>
<variable name="qc_tilt_angle" shape="time" type="int">
<attribute name="long_name" type="String" value="Quality check results on field: Tilt angle" />
<attribute name="_FillValue" type="int" value="-9999" />
</variable>
</netcdf>