Examples of tiling for various products¶
KNMI L2B products for ASCAT-A and ASCAT-B¶
ASCAT has a double swath. This has to be specified or the resulting shape will not separate both tiles.
naiad-tile --doubleswath=41 --xstep 41 --ystep 41 --orientation=counterclockwise "/home/cerdata/provider/knmi/satellite/metop-a/ascat/l2b/12.5km/2010/230/*.nc" KNMIL2NCFile --show
IASI L2P from EUMETSAT / OSI SAF¶
These are short (3 minutes along-swath) granules. We don’t want to tile them along the ‘row’ axis (along-track axis). We don’t specify any ystep argument. The tiler will automatically adjust the tile to the granule row length.
naiad-tile --xstep 40 --display foo GHRSSTNCFile
GPM JAXA L2A¶
naiad-tile --ystep 50 GPMCOR_KUR_1501211635_1808_005104_L2S_DU2_03B.h5 GPMHDF5File
AATSR L2P GHRSST¶
naiad-tile --ystep 512 ../test/20100819-ATS_NR_2P-UPA-L2P-ATS_NR__2PNPDE20100819_012520_000045312092_00131_44273_5834-v01.nc GHRSSTNCFile --show
AVHRR L2P from OSI SAF¶
naiad-tile --xstep 512 --ystep 540 --outpath 20100508-EUR-L2P_GHRSST-SSTsubskin-AVHRR_METOP_A-eumetsat_sstmgr_metop02_20100508_225503-v01.7-fv01.0.nc GHRSSTNCFile
PODAAC Rapidscat data¶
- Several issues exist with the Rapidscat BUFR data:
- swaths are not complete and miss some sections, creating spatial discontinuities in the file.
- the lat/lon contain a lot of invalid data (nan).
naiad-tile --xstep=21 --ystep 20 --view="{'cell':slice(0,41)}" --tiling_method="corners" --use_clustering --gap_threshold=10. --orientation=counterclockwise ../test/rapid_20150101_003748_iss____01546_o_250_ovw_l2.bufr KNMIScatBUFRFile --show
MODIS L2P GHRSST from PODAAC¶
The MODIS L2P have some issues with invalid lat/lon.
naiad-tile --xstep=452 --ystep=677 --tiling_method="corners" jpl-l2p-modis_a/data/2015/001/20150101-MODIS_A-JPL-L2P-A2015001000500.L2_LAC_GHRSST_N-v01.nc GHRSSTNCFile --show
SARAL L2 from EUMETSAT¶
Saral altimeter data are along-track observations. Use the Trajectory feature
class, and --ystep argument to specify the size of the tiles.
naiad-tile ../test/data/saral/SRL_OPRSSHA_2PTS026_0007_20150806_112515_20150806_130348.EUM.nc Cryosat2NCFile --ystep 75 --show --feature Trajectory
AMSR2 L2P from REMSS¶
naiad-tile --xstep 50 --ystep 50 --feature Swath --orientation=clockwise --show ../test/data/20150101000936-REMSS-L2P_GHRSST-SSTsubskin-AMSR2-l2b_v07.2_r13957-v02.0-fv01.0.nc GHRSSTNCFile
IASI 1C spectra data in NetCDF, EUMETSAT¶
naiad-tile --xstep=40 --ystep=10 /media/sumba/Iomega_HDD/iasi/W_XX-EUMETSAT-Darmstadt,HYPERSPECT+SOUNDING,MetOpA+IASI_C_EUMP_20100702085353_19203_eps_o_l1.nc NCFile --show
