gdalinfo
needs a single grid data set. Your screen capture isn’t readable on this laptop screen, but I’m guessing you used the filename without specifying the subdataset. Here is an example from a NASA standard mapped image:
$ gdalinfo A2006167181000.smi_chlor_a_mn.nc
Driver: netCDF/Network Common Data Format
Files: A2006167181000.smi_chlor_a_mn.nc
Size is 512, 512
Coordinate System is `'
Metadata:
NC_GLOBAL#cdm_data_type=grid
NC_GLOBAL#Conventions=CF-1.6 ACDD-1.3
[...]
Subdatasets:
SUBDATASET_1_NAME=NETCDF:"A2006167181000.smi_chlor_a_mn.nc":chlor_a
SUBDATASET_1_DESC=[768x768] mass_concentration_of_chlorophyll_in_sea_water (32-bit floating-point)
SUBDATASET_2_NAME=NETCDF:"A2006167181000.smi_chlor_a_mn.nc":chlor_a_stdev
SUBDATASET_2_DESC=[768x768] mass_concentration_of_chlorophyll_in_sea_water (32-bit floating-point)
SUBDATASET_3_NAME=NETCDF:"A2006167181000.smi_chlor_a_mn.nc":palette
SUBDATASET_3_DESC=[3x256] palette (8-bit unsigned integer)
Corner Coordinates:
Upper Left ( 0.0, 0.0)
Lower Left ( 0.0, 512.0)
Upper Right ( 512.0, 0.0)
Lower Right ( 512.0, 512.0)
Center ( 256.0, 256.0)
Note the “subdataset” entries, for example:
$ gdalinfo NETCDF:"A2006167181000.smi_chlor_a_mn.nc":chlor_a
Driver: netCDF/Network Common Data Format
Files: A2006167181000.smi_chlor_a_mn.nc
Size is 768, 768
Coordinate System is `'
Origin = (-78.000002546447192,45.999998728019783)
Pixel Size = (0.020833339964706,-0.020833332504412)
Metadata:
chlor_a#display_max=20
chlor_a#display_min=0.0099999998
chlor_a#display_scale=log
chlor_a#long_name=Chlorophyll Concentration, OCI Algorithm
chlor_a#reference=Hu, C., Lee Z., and Franz, B.A. (2012). Chlorophyll-a algorithms for oligotrophic oceans: A novel approach based on three-band reflectance difference, J. Geophys. Res., 117, C01011, doi:10.1029/2011JC007395.
chlor_a#standard_name=mass_concentration_of_chlorophyll_in_sea_water
chlor_a#units=mg m^-3
chlor_a#valid_max=100
chlor_a#valid_min=0.001
chlor_a#_FillValue=-32767
lat#long_name=Latitude
lat#standard_name=latitude
lat#units=degrees_north
lat#valid_max=90
lat#valid_min=-90
lat#_FillValue=-999
lon#long_name=Longitude
lon#standard_name=longitude
lon#units=degrees_east
lon#valid_max=180
lon#valid_min=-180
lon#_FillValue=-999
NC_GLOBAL#cdm_data_type=grid
NC_GLOBAL#Conventions=CF-1.6 ACDD-1.3
NC_GLOBAL#creator_email=data@oceancolor.gsfc.nasa.gov
NC_GLOBAL#creator_name=NASA/GSFC/OBPG
NC_GLOBAL#creator_url=https://oceandata.sci.gsfc.nasa.gov
NC_GLOBAL#data_bins=153426
NC_GLOBAL#data_maximum=97.059814
NC_GLOBAL#data_minimum=0
NC_GLOBAL#date_created=2019-11-06T12:35:18.000Z
NC_GLOBAL#easternmost_longitude=-62
NC_GLOBAL#end_orbit_number=21910
NC_GLOBAL#geospatial_lat_max=46
NC_GLOBAL#geospatial_lat_min=30
NC_GLOBAL#geospatial_lat_resolution=0.020833334
NC_GLOBAL#geospatial_lat_units=degrees_north
NC_GLOBAL#geospatial_lon_max=-62
NC_GLOBAL#geospatial_lon_min=-78
NC_GLOBAL#geospatial_lon_resolution=0.020833334
NC_GLOBAL#geospatial_lon_units=degrees_east
NC_GLOBAL#history=l3mapgen ifile=A2006167181000.L3b_time.nc ofile=A2006167181000.smi_chlor_a_mn.nc product=chlor_a,chlor_a:stdev resolution=2km east=-62 west=-78 south=30 north=46 quiet
NC_GLOBAL#id=L3/A2006167181000.L3b_time.nc
NC_GLOBAL#institution=NASA Goddard Space Flight Center, Ocean Ecology Laboratory, Ocean Biology Processing Group
NC_GLOBAL#instrument=MODIS
NC_GLOBAL#l2_flag_names=ATMFAIL,LAND,HILT,HISATZEN,STRAYLIGHT,CLDICE,COCCOLITH,LOWLW,CHLWARN,CHLFAIL,NAVWARN,MAXAERITER,ATMWARN,HISOLZEN,NAVFAIL,FILTER,HIGLINT
NC_GLOBAL#latitude_step=0.020833334
NC_GLOBAL#latitude_units=degrees_north
NC_GLOBAL#license=https://science.nasa.gov/earth-science/earth-science-data/data-information-policy/
NC_GLOBAL#longitude_step=0.020833334
NC_GLOBAL#longitude_units=degrees_east
NC_GLOBAL#map_projection=Equidistant Cylindrical
NC_GLOBAL#measure=Mean
NC_GLOBAL#naming_authority=gov.nasa.gsfc.sci.oceandata
NC_GLOBAL#northernmost_latitude=46
NC_GLOBAL#number_of_columns=768
NC_GLOBAL#number_of_lines=768
NC_GLOBAL#platform=Aqua
NC_GLOBAL#processing_level=L3 Mapped
NC_GLOBAL#processing_version=Unspecified
NC_GLOBAL#product_name=A2006167181000.smi_chlor_a_mn.nc
NC_GLOBAL#project=Ocean Biology Processing Group (NASA/GSFC/OBPG)
NC_GLOBAL#publisher_email=data@oceancolor.gsfc.nasa.gov
NC_GLOBAL#publisher_name=NASA/GSFC/OBPG
NC_GLOBAL#publisher_url=https://oceandata.sci.gsfc.nasa.gov
NC_GLOBAL#southernmost_latitude=30
NC_GLOBAL#spatialResolution=2.32 km
NC_GLOBAL#standard_name_vocabulary=CF Standard Name Table v36
NC_GLOBAL#start_orbit_number=21910
NC_GLOBAL#suggested_image_scaling_applied=No
NC_GLOBAL#suggested_image_scaling_maximum=20
NC_GLOBAL#suggested_image_scaling_minimum=0.0099999998
NC_GLOBAL#suggested_image_scaling_type=LOG
NC_GLOBAL#sw_point_latitude=30.010416
NC_GLOBAL#sw_point_longitude=-77.989586
NC_GLOBAL#temporal_range=1-hour
NC_GLOBAL#time_coverage_end=2006-06-16T18:14:58.000Z
NC_GLOBAL#time_coverage_start=2006-06-16T18:10:01.000Z
NC_GLOBAL#title=MODISA Level-3 Standard Mapped Image
NC_GLOBAL#westernmost_longitude=-78
NC_GLOBAL#_lastModified=2019-11-06T12:35:18.000Z
Corner Coordinates:
Upper Left ( -78.0000025, 45.9999987)
Lower Left ( -78.0000025, 29.9999994)
Upper Right ( -61.9999975, 45.9999987)
Lower Right ( -61.9999975, 29.9999994)
Center ( -70.0000000, 37.9999990)
Band 1 Block=257x257 Type=Float32, ColorInterp=Undefined
NoData Value=-32767
Unit Type: mg m^-3
Metadata:
display_max=20
display_min=0.0099999998
display_scale=log
long_name=Chlorophyll Concentration, OCI Algorithm
NETCDF_VARNAME=chlor_a
reference=Hu, C., Lee Z., and Franz, B.A. (2012). Chlorophyll-a algorithms for oligotrophic oceans: A novel approach based on three-band reflectance difference, J. Geophys. Res., 117, C01011, doi:10.1029/2011JC007395.
standard_name=mass_concentration_of_chlorophyll_in_sea_water
units=mg m^-3
valid_max=100
valid_min=0.001
_FillValue=-32767
Qgis uses gdal under the hood, so should also use the subdataset names.