NMDIS-China catalogue: align ERDDAP-generated JSON-LD to ODIS-arch

[jmckenna]

Some minor adjustments are needed to the ERDDAP-generated JSON-LD:

• missing a distribution property
  • such as documented at https://book.oceaninfohub.org/thematics/dataset/index.html
  • such as:

    "distribution": {
    "@type": "DataDownload",
    "contentUrl": "http://222.186.3.18:8888/erddap/files/BATM_NMDIS_2020_Jinli_Seamount/BATM_NMDIS_2020_Jinli_Seamount.dtm",
    "encodingFormat": "image/xyz"
    },

• description looks incorrect
  • here is one of your description values:

    "description": "Data from a local source.\ncdm_data_type=Grid\nCIB_BLOCKS_FOR_UNLIMITED=1\nConventions=CF-1.6, COARDS, ACDD-1.3\nEasternmost_Easting=128.43958189743333\nElement_x_size=0.0010416666666666667\nElement_y_size=0.0010416666666666667\ngeospatial_lat_max=18.21719320693333\ngeospatial_lat_min=17.95469320693333\ngeospatial_lat_resolution=0.0010416666666666638\ngeospatial_lat_units=degrees_north\ngeospatial_lon_max=128.43958189743333\ngeospatial_lon_min=128.09270689743332\ngeospatial_lon_resolution=0.001041666666666701\ngeospatial_lon_units=degrees_east\ngrid_mapping_crs_wkt=GEOGCS[\"WGS 84\",DATUM[\"WGS_1984\",SPHEROID[\"WGS 84\",6378137,298.257223563,AUTHORITY[\"EPSG\",\"7030\"]],AUTHORITY[\"EPSG\",\"6326\"]],PRIMEM[\"Greenwich\",0,AUTHORITY[\"EPSG\",\"8901\"]],UNIT[\"degree\",0.0174532925199433,AUTHORITY[\"EPSG\",\"9122\"]],AUTHORITY[\"EPSG\",\"4326\"]]\ngrid_mapping_geographic_crs_name=WGS 84\ngrid_mapping_horizontal_datum_name=WGS_1984\ngrid_mapping_inverse_flattening=298.257223563\ngrid_mapping_long_name=CRS definition\ngrid_mapping_longitude_of_prime_meridian=0.0\ngrid_mapping_name=latitude_longitude\ngrid_mapping_prime_meridian_name=Greenwich\ngrid_mapping_reference_ellipsoid_name=WGS 84\ngrid_mapping_semi_major_axis=6378137.0\ngrid_mapping_spatial_ref=GEOGCS[\"WGS 84\",DATUM[\"WGS_1984\",SPHEROID[\"WGS 84\",6378137,298.257223563,AUTHORITY[\"EPSG\",\"7030\"]],AUTHORITY[\"EPSG\",\"6326\"]],PRIMEM[\"Greenwich\",0,AUTHORITY[\"EPSG\",\"8901\"]],UNIT[\"degree\",0.0174532925199433,AUTHORITY[\"EPSG\",\"9122\"]],AUTHORITY[\"EPSG\",\"4326\"]]\ninfoUrl=???\ninstitution=NMDIS\nLatitude_BL=17.9541723736\nLatitude_BR=17.9541723736\nLatitude_TL=18.217714040266664\nLatitude_TR=18.217714040266664\nLongitude_BL=128.0921860641\nLongitude_BR=128.44010273076665\nLongitude_TL=128.0921860641\nLongitude_TR=128.44010273076665\nmbEastLongitude=128.44010273076665\nmbEllipsoidA=6378137.0\nmbEllipsoidE2=0.00669437999014133\nmbEllipsoidInvF=0.003352810664747463\nmbEllipsoidName=WGS-84\nmbEndDate=0\nmbEndTime=0\nmbLevel=0\nmbName=GLOBE__EMODNET_10970610310964011478\nmbNbrHistoryRec=1\nmbNorthLatitude=18.217714040266664\nmbProj4String=+proj=longlat +ellps=WGS84 +datum=WGS84 +no_defs\nmbProjType=-1\nmbSouthLatitude=17.9541723736\nmbStartDate=0\nmbStartTime=0\nmbTimeReference=Julian date for 1970/01/01 = 2 440 588\nmbVersion=200\nmbWestLongitude=128.0921860641\nNorthernmost_Northing=18.21719320693333\nNumber_columns=334\nNumber_layers=2\nNumber_lines=253\nOrientation=0.0\nSounder_type=0\nsourceUrl=(local files)\nSouthernmost_Northing=17.95469320693333\nstandard_name_vocabulary=CF Standard Name Table v70\nType=DTM\nWesternmost_Easting=128.09270689743332\nXmax_metric=128.44010273076665\nXmin_metric=128.0921860641\nYmax_metric=18.217714040266664\nYmin_metric=17.9541723736"

Related to https://github.com/iodepo/odis-arch/issues/256

[pbuttigieg]

@kevin-obrien this may be of interest for general ERDDAP-ODIS interfacing

See also #256

[jmckenna]

updates from today's meeting:

• NMDIS team to manually add the missing distribution property in the JSON-LD
• OIH team to review the cause of the 187 errors when trying to bring the records into ODIS (only 35 JSON-LD were harvested successfully:

  name: nmdis
    Start: 2023-09-05 11:44:30.998041229 +0000 UTC m=+1.412800391
    End: 2023-09-05 11:44:31.000800312 +0000 UTC m=+1.415559488
    HeadlessServerError: 187
    SitemapStored: 35
    SitemapCount: 222
    SitemapHttpError: 0
    SitemapIssues: 0
    SitemapSummoned: 35
  Calling cleanUp on a successful run

[jmckenna]

Ah, now I understand: there are only 35 datasets in ERDDAP, as listed on: http://222.186.3.18:8888/erddap/info/index.html?page=1&itemsPerPage=1000

screen capture:

[jmckenna]

Closing this issue, moving to initial issue #256