## to read Thredds/dods/OpenDAP we need the ROpenSci rwinlibs build:
## devtools::install_github("mdsumner/ncdf4")

#u <- "http://rs-data1-mel.csiro.au/thredds/dodsC/imos-srs/sst/ghrsst/L3S-3d/ngt/1992/19921231152000-ABOM-L3S_GHRSST-SSTskin-AVHRR_D-3d_night-v02.0-fv02.0.nc"
u <- "http://rs-data1-mel.csiro.au/thredds/dodsC/imos-srs/sst/ghrsst/L3S-3d/ngt/2018/20180404152000-ABOM-L3S_GHRSST-SSTskin-AVHRR_D-3d_night-v02.0-fv01.0.nc"

library(raster)

## Loading required package: sp

r <- raster(u, ncdf = TRUE)

## Loading required namespace: ncdf4

## Warning in .varName(nc, varname, warn = warn): varname used is: sea_surface_temperature
## If that is not correct, you can set it to one of: sea_surface_temperature, sst_dtime, dt_analysis, wind_speed, wind_speed_dtime_from_sst, sea_ice_fraction, sea_ice_fraction_dtime_from_sst, satellite_zenith_angle, l2p_flags, quality_level, sses_bias, sses_standard_deviation, sses_count, sst_count, sst_mean, sst_standard_deviation

plot(crop(r, extent(140, 150, -45, -39)))