<div dir="ltr"><div dir="ltr">This data would need to be converted to L3 for grads to read. That can be done, but the coastwatch utilities will likely produce what you need.<div><br></div><div><a href="https://coastwatch.noaa.gov/cw/user-resources/coastwatch-utilities.html#Downloads">https://coastwatch.noaa.gov/cw/user-resources/coastwatch-utilities.html#Downloads</a><br></div></div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Tue, Mar 5, 2019 at 4:20 PM Stephen Woodbridge <<a href="mailto:stephenwoodbridge37@gmail.com">stephenwoodbridge37@gmail.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">Hi All,<br>
<br>
I'm struggling to find a way to convert NOAA AVHRR SST netcdf file into <br>
a georeferenced GTiff file, like:<br>
<br>
<a href="ftp://ftp.star.nesdis.noaa.gov/pub/socd2/coastwatch/sst/nrt/avhrr_gac/noaa18/l2p/2019/063/20190304200000-OSPO-L2P_GHRSST-SSTsubskin-AVHRR18_G-ACSPO_V2.41-v02.0-fv01.0.nc" rel="noreferrer" target="_blank">ftp://ftp.star.nesdis.noaa.gov/pub/socd2/coastwatch/sst/nrt/avhrr_gac/noaa18/l2p/2019/063/20190304200000-OSPO-L2P_GHRSST-SSTsubskin-AVHRR18_G-ACSPO_V2.41-v02.0-fv01.0.nc</a><br>
<br>
My standard goto too is normally GDAL but it does not handle files like <br>
this where every pixel has its own lat/lon. I seems like you need to <br>
convert the irregular points into a gridded x-y array in some projection <br>
then write that out to a gtiff, but I'm lost on how to do this.<br>
<br>
I have only used Grads once before to convert a grads script into a <br>
gradspy script to extract date that had been getting plotted to a data <br>
array.<br>
<br>
Any help would be appreciated.<br>
<br>
Thanks,<br>
-Steve W<br>
<br>
below are and ncdump -h and gdalinfo output:<br>
<br>
$ ncdump -h <br>
<a href="http://20190304200000-OSPO-L2P_GHRSST-SSTsubskin-AVHRR18_G-ACSPO_V2.41-v02.0-fv01.0.nc" rel="noreferrer" target="_blank">20190304200000-OSPO-L2P_GHRSST-SSTsubskin-AVHRR18_G-ACSPO_V2.41-v02.0-fv01.0.nc</a><br>
netcdf <br>
\20190304200000-OSPO-L2P_GHRSST-SSTsubskin-AVHRR18_G-ACSPO_V2.41-v02.0-fv01.0 <br>
{<br>
dimensions:<br>
ni = 409 ;<br>
nj = 7200 ;<br>
time = 1 ;<br>
variables:<br>
int time(time) ;<br>
time:comment = "seconds since 1981-01-01 00:00:00" ;<br>
time:long_name = "reference time of sst file" ;<br>
time:standard_name = "time" ;<br>
time:units = "seconds since 1981-01-01 00:00:00" ;<br>
time:calendar = "Gregorian" ;<br>
time:axis = "T" ;<br>
short sst_dtime(time, nj, ni) ;<br>
sst_dtime:add_offset = 0.f ;<br>
sst_dtime:comment = "time plus sst_dtime gives seconds <br>
since 1981-01-01 00:00:00 UTC" ;<br>
sst_dtime:coordinates = "lon lat" ;<br>
sst_dtime:long_name = "time difference from reference <br>
time" ;<br>
sst_dtime:scale_factor = 0.25f ;<br>
sst_dtime:units = "seconds" ;<br>
sst_dtime:valid_max = 32767s ;<br>
sst_dtime:valid_min = -32767s ;<br>
sst_dtime:_FillValue = -32768s ;<br>
byte dt_analysis(time, nj, ni) ;<br>
dt_analysis:add_offset = 0.f ;<br>
dt_analysis:comment = "Deviation from reference SST, <br>
i.e., dt_analysis = SST - reference SST" ;<br>
dt_analysis:coordinates = "lon lat" ;<br>
dt_analysis:long_name = "deviation from SST reference" ;<br>
dt_analysis:source = "CMC0.2deg-CMC-L4-GLOB-v2.0" ;<br>
dt_analysis:scale_factor = 0.1f ;<br>
dt_analysis:units = "kelvin" ;<br>
dt_analysis:valid_max = 127b ;<br>
dt_analysis:valid_min = -127b ;<br>
dt_analysis:_FillValue = -128b ;<br>
float lat(nj, ni) ;<br>
lat:comment = "Latitude of retrievals" ;<br>
lat:long_name = "latitude" ;<br>
lat:standard_name = "latitude" ;<br>
lat:units = "degrees_north" ;<br>
lat:valid_max = 90.f ;<br>
lat:valid_min = -90.f ;<br>
float lon(nj, ni) ;<br>
lon:comment = "Longitude of retrievals" ;<br>
lon:long_name = "longitude" ;<br>
lon:standard_name = "longitude" ;<br>
lon:units = "degrees_east" ;<br>
lon:valid_max = 180.f ;<br>
lon:valid_min = -180.f ;<br>
byte satellite_zenith_angle(time, nj, ni) ;<br>
satellite_zenith_angle:add_offset = 0.f ;<br>
satellite_zenith_angle:comment = "satellite zenith angle" ;<br>
satellite_zenith_angle:coordinates = "lon lat" ;<br>
satellite_zenith_angle:long_name = "satellite zenith <br>
angle" ;<br>
satellite_zenith_angle:scale_factor = 1.f ;<br>
satellite_zenith_angle:units = "degrees" ;<br>
satellite_zenith_angle:valid_max = 127b ;<br>
satellite_zenith_angle:valid_min = -127b ;<br>
satellite_zenith_angle:_FillValue = -128b ;<br>
short sea_surface_temperature(time, nj, ni) ;<br>
sea_surface_temperature:add_offset = 273.15f ;<br>
sea_surface_temperature:comment = "SST obtained by <br>
regression with buoy measurements" ;<br>
sea_surface_temperature:coordinates = "lon lat" ;<br>
sea_surface_temperature:long_name = "sea surface skin <br>
temperature" ;<br>
sea_surface_temperature:scale_factor = 0.01f ;<br>
sea_surface_temperature:source = "NOAA" ;<br>
sea_surface_temperature:standard_name = <br>
"sea_surface_skin_temperature" ;<br>
sea_surface_temperature:units = "kelvin" ;<br>
sea_surface_temperature:valid_max = 32767s ;<br>
sea_surface_temperature:valid_min = -32767s ;<br>
sea_surface_temperature:_FillValue = -32768s ;<br>
byte sses_bias(time, nj, ni) ;<br>
sses_bias:add_offset = 0.f ;<br>
sses_bias:comment = "Estimated based on buoys <br>
measurements" ;<br>
sses_bias:coordinates = "lon lat" ;<br>
sses_bias:long_name = "SSES bias estimate" ;<br>
sses_bias:scale_factor = 0.016f ;<br>
sses_bias:units = "kelvin" ;<br>
sses_bias:valid_max = 127b ;<br>
sses_bias:valid_min = -127b ;<br>
sses_bias:_FillValue = -128b ;<br>
byte sses_standard_deviation(time, nj, ni) ;<br>
sses_standard_deviation:add_offset = 1.f ;<br>
sses_standard_deviation:comment = "Estimated based on <br>
buoys measurements" ;<br>
sses_standard_deviation:coordinates = "lon lat" ;<br>
sses_standard_deviation:long_name = "SSES standard <br>
deviation" ;<br>
sses_standard_deviation:scale_factor = 0.01f ;<br>
sses_standard_deviation:units = "kelvin" ;<br>
sses_standard_deviation:valid_max = 127b ;<br>
sses_standard_deviation:valid_min = -127b ;<br>
sses_standard_deviation:_FillValue = -128b ;<br>
byte sea_ice_fraction(time, nj, ni) ;<br>
sea_ice_fraction:add_offset = 0.f ;<br>
sea_ice_fraction:comment = "Fractional sea ice cover <br>
from reference SST" ;<br>
sea_ice_fraction:coordinates = "lon lat" ;<br>
sea_ice_fraction:long_name = "sea ice fraction" ;<br>
sea_ice_fraction:scale_factor = 0.01f ;<br>
sea_ice_fraction:source = "CMC0.2deg-CMC-L4-GLOB-v2.0" ;<br>
sea_ice_fraction:standard_name = "sea_ice_area_fraction" ;<br>
sea_ice_fraction:units = "1" ;<br>
sea_ice_fraction:valid_max = 100b ;<br>
sea_ice_fraction:valid_min = 0b ;<br>
sea_ice_fraction:_FillValue = -128b ;<br>
short l2p_flags(time, nj, ni) ;<br>
l2p_flags:comment = "L2P common flags in bits 1-6 and <br>
data provider flags (from ACSPO mask) in bits 9-16: bit01 (0=IR: <br>
1=microwave); bit02 (0=ocean; 1=land); bit03 (0=no ice; 1=ice); <br>
bits04-08 (reserved,set to 0); bit09 (0=radiance valid; 1=invalid); <br>
bit10 (0=night; 1=day); bit11 (0=ocean; 1=land); bit12 (0=good quality <br>
data; 1=degraded quality data due to \"twilight\" region); bit13 (0=no <br>
glint; 1=glint); bit14 (0=no snow/ice; 1=snow/ice); bits15-16 (00=clear; <br>
01=probably clear; 10=cloudy; 11=clear-sky mask undefined)" ;<br>
l2p_flags:coordinates = "lon lat" ;<br>
l2p_flags:flag_masks = 1s, 2s, 4s, 256s, 512s, 1024s, <br>
2048s, 4096s, 8192s, -16384s ;<br>
l2p_flags:flag_meanings = "microwave land ice invalid <br>
day land twilight glint ice probably_clear_or_cloudy_or_undefined" ;<br>
l2p_flags:long_name = "L2P flags" ;<br>
l2p_flags:valid_max = 32767s ;<br>
l2p_flags:valid_min = -32768s ;<br>
byte quality_level(time, nj, ni) ;<br>
quality_level:comment = "Based on l2p_flags" ;<br>
quality_level:coordinates = "lon lat" ;<br>
quality_level:flag_meanings = "invalid not_used <br>
not_used cloudy probably_clear clear" ;<br>
quality_level:flag_values = 0b, 1b, 2b, 3b, 4b, 5b ;<br>
quality_level:long_name = "quality level of SST pixel" ;<br>
quality_level:valid_max = 5b ;<br>
quality_level:valid_min = 0b ;<br>
quality_level:_FillValue = 0b ;<br>
byte wind_speed(time, nj, ni) ;<br>
wind_speed:add_offset = 0.f ;<br>
wind_speed:comment = "Typically represents surface <br>
winds (10 meters above the sea surface)" ;<br>
wind_speed:coordinates = "lon lat" ;<br>
wind_speed:height = "10 m" ;<br>
wind_speed:long_name = "wind speed" ;<br>
wind_speed:scale_factor = 0.15f ;<br>
wind_speed:source = "Wind speed from NCEP GFS data" ;<br>
wind_speed:standard_name = "wind_speed" ;<br>
wind_speed:units = "m s-1" ;<br>
wind_speed:valid_max = 127b ;<br>
wind_speed:valid_min = -127b ;<br>
wind_speed:_FillValue = -128b ;<br>
short brightness_temperature_11um(time, nj, ni) ;<br>
brightness_temperature_11um:add_offset = 273.15f ;<br>
brightness_temperature_11um:comment = "non L2P core <br>
field; brightness temperature for 10.8 um channel AVHRR Ch. 4" ;<br>
brightness_temperature_11um:coordinates = "lon lat" ;<br>
brightness_temperature_11um:long_name = "brightness <br>
temperature for 10.8 um channel" ;<br>
brightness_temperature_11um:scale_factor = 0.01f ;<br>
brightness_temperature_11um:source = "AVHRR channel 4" ;<br>
brightness_temperature_11um:units = "kelvin" ;<br>
brightness_temperature_11um:valid_max = 32767s ;<br>
brightness_temperature_11um:valid_min = -32767s ;<br>
brightness_temperature_11um:_FillValue = -32768s ;<br>
short brightness_temperature_12um(time, nj, ni) ;<br>
brightness_temperature_12um:add_offset = 273.15f ;<br>
brightness_temperature_12um:comment = "non L2P core <br>
field; brightness temperature for 12.0 um channel AVHRR Ch. 5" ;<br>
brightness_temperature_12um:coordinates = "lon lat" ;<br>
brightness_temperature_12um:long_name = "brightness <br>
temperature for 12.0 um channel" ;<br>
brightness_temperature_12um:scale_factor = 0.01f ;<br>
brightness_temperature_12um:source = "AVHRR channel 5" ;<br>
brightness_temperature_12um:units = "kelvin" ;<br>
brightness_temperature_12um:valid_max = 32767s ;<br>
brightness_temperature_12um:valid_min = -32767s ;<br>
brightness_temperature_12um:_FillValue = -32768s ;<br>
short brightness_temperature_4um(time, nj, ni) ;<br>
brightness_temperature_4um:add_offset = 273.15f ;<br>
brightness_temperature_4um:comment = "non L2P core <br>
field; brightness temperature for 3.7 um channel AVHRR Ch. 3b" ;<br>
brightness_temperature_4um:coordinates = "lon lat" ;<br>
brightness_temperature_4um:long_name = "brightness <br>
temperature for 3.7 um channel" ;<br>
brightness_temperature_4um:scale_factor = 0.01f ;<br>
brightness_temperature_4um:source = "AVHRR channel 3b" ;<br>
brightness_temperature_4um:units = "kelvin" ;<br>
brightness_temperature_4um:valid_max = 32767s ;<br>
brightness_temperature_4um:valid_min = -32767s ;<br>
brightness_temperature_4um:_FillValue = -32768s ;<br>
<br>
// global attributes:<br>
:geospatial_bounds = "POLYGON(( 3.520 14.209, <br>
176.005 20.284, -156.649 15.860, -23.493 9.963, 3.520 14.209))" ;<br>
:geospatial_first_scanline_first_fov_lat = 20.28396f ;<br>
:geospatial_first_scanline_first_fov_lon = 176.0049f ;<br>
:geospatial_first_scanline_last_fov_lat = 15.86f ;<br>
:geospatial_first_scanline_last_fov_lon = -156.6491f ;<br>
:geospatial_last_scanline_first_fov_lat = 14.20918f ;<br>
:geospatial_last_scanline_first_fov_lon = 3.520287f ;<br>
:geospatial_last_scanline_last_fov_lat = 9.962526f ;<br>
:geospatial_last_scanline_last_fov_lon = -23.49267f ;<br>
:Conventions = "CF-1.6" ;<br>
:Metadata_Conventions = "Unidata Dataset Discovery v1.0" ;<br>
:acknowledgment = "Please acknowledge the use of these <br>
data with the following statement: These data were provided by Group for <br>
High Resolution Sea Surface Temperature (GHRSST) and the National <br>
Oceanic and Atmospheric Administration (NOAA)." ;<br>
:cdm_data_type = "swath" ;<br>
:comment = "none" ;<br>
:creator_email = "<a href="mailto:Alex.Ignatov@noaa.gov" target="_blank">Alex.Ignatov@noaa.gov</a>" ;<br>
:creator_name = "Alex Ignatov" ;<br>
:creator_url = "<a href="http://www.star.nesdis.noaa.gov" rel="noreferrer" target="_blank">http://www.star.nesdis.noaa.gov</a>" ;<br>
:date_created = "20190304T214051Z" ;<br>
:easternmost_longitude = 180.f ;<br>
:file_quality_level = 3s ;<br>
:gds_version_id = "02.0" ;<br>
:geospatial_lat_resolution = 0.0099f ;<br>
:geospatial_lat_units = "degrees_north" ;<br>
:geospatial_lon_resolution = 0.0099f ;<br>
:geospatial_lon_units = "degrees_east" ;<br>
:history = "Created by Advanced Clear-Sky Processor for <br>
Oceans (ACSPO)-AVHRR at NOAA/NESDIS/OSPO." ;<br>
:id = "AVHRR18_G-OSPO-L2P-v2.41" ;<br>
:institution = "NOAA/NESDIS/OSPO" ;<br>
:keywords = "Oceans > Ocean Temperature > Sea Surface <br>
Temperature" ;<br>
:keywords_vocabulary = "NASA Global Change Master <br>
Directory (GCMD) Science Keywords" ;<br>
:license = "GHRSST protocol describes data use as free <br>
and open" ;<br>
:metadata_link = <br>
"<a href="http://podaac.jpl.nasa.gov/ws/metadata/dataset/?format=iso&shortName=AVHRR18_G-OSPO-L2P-v2.41" rel="noreferrer" target="_blank">http://podaac.jpl.nasa.gov/ws/metadata/dataset/?format=iso&shortName=AVHRR18_G-OSPO-L2P-v2.41</a>" <br>
;<br>
:naming_authority = "org.ghrsst" ;<br>
:northernmost_latitude = 20.28396f ;<br>
:platform = "NOAA-18" ;<br>
:processing_level = "L2P" ;<br>
:product_version = "2.41" ;<br>
:project = "Group for High Resolution Sea Surface <br>
Temperature" ;<br>
:publisher_email = "<a href="mailto:ghrsst-po@nceo.ac.uk" target="_blank">ghrsst-po@nceo.ac.uk</a>" ;<br>
:publisher_name = "The GHRSST Project Office" ;<br>
:publisher_url = "<a href="http://www.ghrsst.org" rel="noreferrer" target="_blank">http://www.ghrsst.org</a>" ;<br>
:references = "Data convention: GHRSST Data <br>
Specification (GDS) v2.0. Algorithms: ACSPO-AVHRR ATBD (NOAA/NESDIS/STAR)" ;<br>
:sensor = "AVHRR_GAC" ;<br>
:source = <br>
"AVHRR_L1b,CMC0.2deg-CMC-L4-GLOB-v2.0,NOAA-NCEP-GFS" ;<br>
:southernmost_latitude = -90.f ;<br>
:spatial_resolution = "1.1 km at nadir" ;<br>
:standard_name_vocabulary = "CF Standard Name Table <br>
(v26, 08 November 2013)" ;<br>
:start_time = "20190304T200000Z" ;<br>
:stop_time = "20190304T205959Z" ;<br>
:summary = "Sea surface temperature retrievals produced <br>
by NOAA/NESDIS/OSPO office from AVHRR sensor" ;<br>
:time_coverage_end = "20190304T205959Z" ;<br>
:time_coverage_start = "20190304T200000Z" ;<br>
:title = "AVHRR L2P SST" ;<br>
:uuid = "2eaa373c-3ec6-11e9-ac15-f9642917379f" ;<br>
:westernmost_longitude = -180.f ;<br>
:netcdf_version_id = "4.3.2 of Sep 24 2015 08:51:38 $" ;<br>
}<br>
<br>
<br>
$ gdalinfo <br>
NETCDF:20190304200000-OSPO-L2P_GHRSST-SSTsubskin-AVHRR18_<a href="http://G-ACSPO_V2.41-v02.0-fv01.0.nc" target="_blank">G-ACSPO_V2.41-v02.0-fv01.0.nc</a>:sea_surface_temperature<br>
Warning 1: dimension #2 (ni) is not a Longitude/X dimension.<br>
Warning 1: dimension #1 (nj) is not a Latitude/Y dimension.<br>
Driver: netCDF/Network Common Data Format<br>
Files: <br>
<a href="http://20190304200000-OSPO-L2P_GHRSST-SSTsubskin-AVHRR18_G-ACSPO_V2.41-v02.0-fv01.0.nc" rel="noreferrer" target="_blank">20190304200000-OSPO-L2P_GHRSST-SSTsubskin-AVHRR18_G-ACSPO_V2.41-v02.0-fv01.0.nc</a><br>
Size is 409, 7200<br>
Coordinate System is `'<br>
Metadata:<br>
NC_GLOBAL#acknowledgment=Please acknowledge the use of these data <br>
with the following statement: These data were provided by Group for High <br>
Resolution Sea Surface Temperature (GHRSST) and the National Oceanic and <br>
Atmospheric Administration (NOAA).<br>
NC_GLOBAL#cdm_data_type=swath<br>
NC_GLOBAL#comment=none<br>
NC_GLOBAL#Conventions=CF-1.6<br>
NC_GLOBAL#creator_email=<a href="mailto:Alex.Ignatov@noaa.gov" target="_blank">Alex.Ignatov@noaa.gov</a><br>
NC_GLOBAL#creator_name=Alex Ignatov<br>
NC_GLOBAL#creator_url=<a href="http://www.star.nesdis.noaa.gov" rel="noreferrer" target="_blank">http://www.star.nesdis.noaa.gov</a><br>
NC_GLOBAL#date_created=20190304T214051Z<br>
NC_GLOBAL#easternmost_longitude=180<br>
NC_GLOBAL#file_quality_level=3<br>
NC_GLOBAL#gds_version_id=02.0<br>
NC_GLOBAL#geospatial_bounds=POLYGON(( 3.520 14.209, 176.005 <br>
20.284, -156.649 15.860, -23.493 9.963, 3.520 14.209))<br>
NC_GLOBAL#geospatial_first_scanline_first_fov_lat=20.283962<br>
NC_GLOBAL#geospatial_first_scanline_first_fov_lon=176.00494<br>
NC_GLOBAL#geospatial_first_scanline_last_fov_lat=15.859998<br>
NC_GLOBAL#geospatial_first_scanline_last_fov_lon=-156.64908<br>
NC_GLOBAL#geospatial_last_scanline_first_fov_lat=14.20918<br>
NC_GLOBAL#geospatial_last_scanline_first_fov_lon=3.5202866<br>
NC_GLOBAL#geospatial_last_scanline_last_fov_lat=9.9625263<br>
NC_GLOBAL#geospatial_last_scanline_last_fov_lon=-23.492666<br>
NC_GLOBAL#geospatial_lat_resolution=0.0098999999<br>
NC_GLOBAL#geospatial_lat_units=degrees_north<br>
NC_GLOBAL#geospatial_lon_resolution=0.0098999999<br>
NC_GLOBAL#geospatial_lon_units=degrees_east<br>
NC_GLOBAL#history=Created by Advanced Clear-Sky Processor for Oceans <br>
(ACSPO)-AVHRR at NOAA/NESDIS/OSPO.<br>
NC_GLOBAL#id=AVHRR18_G-OSPO-L2P-v2.41<br>
NC_GLOBAL#institution=NOAA/NESDIS/OSPO<br>
NC_GLOBAL#keywords=Oceans > Ocean Temperature > Sea Surface Temperature<br>
NC_GLOBAL#keywords_vocabulary=NASA Global Change Master Directory <br>
(GCMD) Science Keywords<br>
NC_GLOBAL#license=GHRSST protocol describes data use as free and open<br>
NC_GLOBAL#Metadata_Conventions=Unidata Dataset Discovery v1.0<br>
NC_GLOBAL#metadata_link=<a href="http://podaac.jpl.nasa.gov/ws/metadata/dataset/?format=iso&shortName=AVHRR18_G-OSPO-L2P-v2.41" rel="noreferrer" target="_blank">http://podaac.jpl.nasa.gov/ws/metadata/dataset/?format=iso&shortName=AVHRR18_G-OSPO-L2P-v2.41</a><br>
NC_GLOBAL#naming_authority=org.ghrsst<br>
NC_GLOBAL#netcdf_version_id=4.3.2 of Sep 24 2015 08:51:38 $<br>
NC_GLOBAL#northernmost_latitude=20.283962<br>
NC_GLOBAL#platform=NOAA-18<br>
NC_GLOBAL#processing_level=L2P<br>
NC_GLOBAL#product_version=2.41<br>
NC_GLOBAL#project=Group for High Resolution Sea Surface Temperature<br>
NC_GLOBAL#publisher_email=<a href="mailto:ghrsst-po@nceo.ac.uk" target="_blank">ghrsst-po@nceo.ac.uk</a><br>
NC_GLOBAL#publisher_name=The GHRSST Project Office<br>
NC_GLOBAL#publisher_url=<a href="http://www.ghrsst.org" rel="noreferrer" target="_blank">http://www.ghrsst.org</a><br>
NC_GLOBAL#references=Data convention: GHRSST Data Specification (GDS) <br>
v2.0. Algorithms: ACSPO-AVHRR ATBD (NOAA/NESDIS/STAR)<br>
NC_GLOBAL#sensor=AVHRR_GAC<br>
NC_GLOBAL#source=AVHRR_L1b,CMC0.2deg-CMC-L4-GLOB-v2.0,NOAA-NCEP-GFS<br>
NC_GLOBAL#southernmost_latitude=-90<br>
NC_GLOBAL#spatial_resolution=1.1 km at nadir<br>
NC_GLOBAL#standard_name_vocabulary=CF Standard Name Table (v26, 08 <br>
November 2013)<br>
NC_GLOBAL#start_time=20190304T200000Z<br>
NC_GLOBAL#stop_time=20190304T205959Z<br>
NC_GLOBAL#summary=Sea surface temperature retrievals produced by <br>
NOAA/NESDIS/OSPO office from AVHRR sensor<br>
NC_GLOBAL#time_coverage_end=20190304T205959Z<br>
NC_GLOBAL#time_coverage_start=20190304T200000Z<br>
NC_GLOBAL#title=AVHRR L2P SST<br>
NC_GLOBAL#uuid=2eaa373c-3ec6-11e9-ac15-f9642917379f<br>
NC_GLOBAL#westernmost_longitude=-180<br>
NETCDF_DIM_EXTRA={time}<br>
NETCDF_DIM_time_DEF={1,4}<br>
NETCDF_DIM_time_VALUES=1204574400<br>
sea_surface_temperature#_FillValue=-32768<br>
sea_surface_temperature#add_offset=273.14999<br>
sea_surface_temperature#comment=SST obtained by regression with buoy <br>
measurements<br>
sea_surface_temperature#coordinates=lon lat<br>
sea_surface_temperature#long_name=sea surface skin temperature<br>
sea_surface_temperature#scale_factor=0.0099999998<br>
sea_surface_temperature#source=NOAA<br>
sea_surface_temperature#standard_name=sea_surface_skin_temperature<br>
sea_surface_temperature#units=kelvin<br>
sea_surface_temperature#valid_max=32767<br>
sea_surface_temperature#valid_min=-32767<br>
time#axis=T<br>
time#calendar=Gregorian<br>
time#comment=seconds since 1981-01-01 00:00:00<br>
time#long_name=reference time of sst file<br>
time#standard_name=time<br>
time#units=seconds since 1981-01-01 00:00:00<br>
Geolocation:<br>
LINE_OFFSET=0<br>
LINE_STEP=1<br>
PIXEL_OFFSET=0<br>
PIXEL_STEP=1<br>
SRS=GEOGCS["WGS 84",DATUM["WGS_1984",SPHEROID["WGS <br>
84",6378137,298.257223563,AUTHORITY["EPSG","7030"]],TOWGS84[0,0,0,0,0,0,0],AUTHORITY["EPSG","6326"]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9108"]],AUTHORITY["EPSG","4326"]]<br>
X_BAND=1<br>
X_DATASET=NETCDF:"<a href="http://20190304200000-OSPO-L2P_GHRSST-SSTsubskin-AVHRR18_G-ACSPO_V2.41-v02.0-fv01.0.nc" rel="noreferrer" target="_blank">20190304200000-OSPO-L2P_GHRSST-SSTsubskin-AVHRR18_G-ACSPO_V2.41-v02.0-fv01.0.nc</a>":lon<br>
Y_BAND=1<br>
Y_DATASET=NETCDF:"<a href="http://20190304200000-OSPO-L2P_GHRSST-SSTsubskin-AVHRR18_G-ACSPO_V2.41-v02.0-fv01.0.nc" rel="noreferrer" target="_blank">20190304200000-OSPO-L2P_GHRSST-SSTsubskin-AVHRR18_G-ACSPO_V2.41-v02.0-fv01.0.nc</a>":lat<br>
Corner Coordinates:<br>
Upper Left ( 0.0, 0.0)<br>
Lower Left ( 0.0, 7200.0)<br>
Upper Right ( 409.0, 0.0)<br>
Lower Right ( 409.0, 7200.0)<br>
Center ( 204.5, 3600.0)<br>
Band 1 Block=409x1024 Type=Int16, ColorInterp=Undefined<br>
NoData Value=-32768<br>
Offset: 273.149993896484, Scale:0.00999999977648258<br>
Metadata:<br>
_FillValue=-32768<br>
add_offset=273.14999<br>
comment=SST obtained by regression with buoy measurements<br>
coordinates=lon lat<br>
long_name=sea surface skin temperature<br>
NETCDF_DIM_time=1204574400<br>
NETCDF_VARNAME=sea_surface_temperature<br>
scale_factor=0.0099999998<br>
source=NOAA<br>
standard_name=sea_surface_skin_temperature<br>
units=kelvin<br>
valid_max=32767<br>
valid_min=-32767<br>
<br>
<br>
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