{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 16:20:22.202225", "data_source": "ERA5", "website": "http://wexa.jamstec.go.jp", "Author": "Patrick Martineau"}, "event_id": {"name": "Event ID", "description": "A unique identifier based on: beginning_date, end_date, longitude, and latitude", "value": "2022-May-04_to_2022-May-10_119.0_13.0"}, "event_label": {"name": "Event label", "description": "Integer-valued grid identifier that uniquely labels each detected extreme event in space and time, consistent with the corresponding labels stored in the NetCDF dataset.", "value": 2022050001612}, "status": {"name": "Status", "description": "An ongoing event denotes an event that lasts up to the latest data available. These events are subject to change as newer data is added.", "value": false}, "start_date": {"name": "Start date", "description": "First date on which grid points are under the influence of an event", "value": "May 04 2022"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "May 10 2022"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 7}, "figures_available": {"name": "Figures available", "description": "True if figures were pre-generated for this event", "value": true}, "detection_var": {"name": "Detection variable", "description": "Variable used for the detection scheme", "value": "t2m"}, "event_type": {"name": "Event type", "description": "Type of the event detected", "value": "Heat wave"}, "area": {"name": "Area", "description": "The area (in square meters) encompassing all grid points under the influence of an event during its lifetime.", "value": 75183.91275236587}, "countries_affected": {"name": "Countries affected", "description": "The ArcGIS geocoding API (https://developers.arcgis.com/rest/geocode/) is used to obtain a list of all the countries affected by an event during its lifetime.", "value": ["Philippines"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["Asia"]}, "oceans_affected": {"name": "Ocean basins affected", "description": "The ArcGIS geocoding API (https://developers.arcgis.com/rest/geocode/) is used to obtain a list of all the ocean basins affected by an event during its lifetime.", "value": ["South China Sea"]}, "center_lat": {"name": "Center latitude", "description": "Latitude of the maximum time-integrated standardized t2m anomalies. Only t2m of the same polarity as the events are considered (positive T2m for a HW, for instance). The centre is thus representative of both the severity and persistence of anomalies.", "value": 13.0}, "center_lon": {"name": "Center longitude", "description": "Longitude of the maximum time-integrated standardized t2m anomalies. Only t2m of the same polarity as the events are considered (positive T2m for a HW, for instance). The centre is thus representative of both the severity and persistence of anomalies.", "value": 119.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "119.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 118.0}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 120.5}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 11.5}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 15.5}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[121.15, 12.75], [121.25, 12.5], [121.03, 11.97], [120.5, 11.75], [120.0, 11.96], [119.68, 11.82], [119.53, 11.47], [119.18, 11.32], [119.03, 10.97], [118.5, 10.75], [118.25, 10.85], [118.0, 10.75], [117.47, 10.97], [117.25, 11.5], [117.46, 12.0], [117.25, 12.5], [117.47, 13.03], [117.82, 13.18], [117.97, 13.53], [118.32, 13.68], [118.35, 13.75], [118.25, 14.0], [118.35, 14.25], [118.25, 14.5], [118.35, 14.75], [118.25, 15.0], [118.47, 15.53], [118.82, 15.68], [118.97, 16.03], [119.5, 16.25], [120.03, 16.03], [120.25, 15.5], [120.15, 15.25], [120.18, 15.18], [120.25, 15.15], [120.5, 15.25], [121.03, 15.03], [121.25, 14.5], [121.04, 14.0], [121.25, 13.5], [121.15, 13.25], [121.25, 13.0], [121.15, 12.75]]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["S.E.Asia"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2022-05-04T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[118.47, 13.53], [119.0, 13.75], [119.53, 13.53], [119.75, 13.0], [119.53, 12.47], [119.0, 12.25], [118.47, 12.47], [118.25, 13.0], [118.47, 13.53]]]]}, "2022-05-05T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[118.25, 13.0], [118.47, 13.53], [119.0, 13.75], [119.25, 13.65], [119.5, 13.75], [120.0, 13.54], [120.5, 13.75], [121.03, 13.53], [121.25, 13.0], [121.15, 12.75], [121.25, 12.5], [121.03, 11.97], [120.5, 11.75], [120.0, 11.96], [119.5, 11.75], [119.25, 11.85], [119.0, 11.75], [118.47, 11.97], [118.25, 12.5], [118.35, 12.75], [118.25, 13.0]]]]}, "2022-05-06T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[117.97, 13.53], [118.32, 13.68], [118.35, 13.75], [118.25, 14.0], [118.35, 14.25], [118.25, 14.5], [118.47, 15.03], [118.82, 15.18], [118.97, 15.53], [119.5, 15.75], [120.03, 15.53], [120.18, 15.18], [120.25, 15.15], [120.5, 15.25], [121.03, 15.03], [121.25, 14.5], [121.03, 13.97], [120.5, 13.75], [121.03, 13.53], [121.25, 13.0], [121.15, 12.75], [121.25, 12.5], [121.03, 11.97], [120.5, 11.75], [120.0, 11.96], [119.5, 11.75], [119.25, 11.85], [119.0, 11.75], [118.75, 11.85], [118.5, 11.75], [118.25, 11.85], [118.0, 11.75], [117.47, 11.97], [117.25, 12.5], [117.47, 13.03], [117.82, 13.18], [117.97, 13.53]], [[120.25, 13.85], [120.18, 13.82], [120.13, 13.7], [120.25, 13.65], [120.5, 13.75], [120.25, 13.85]]]]}, "2022-05-07T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[117.25, 12.5], [117.47, 13.03], [117.82, 13.18], [117.97, 13.53], [118.32, 13.68], [118.35, 13.75], [118.25, 14.0], [118.35, 14.25], [118.25, 14.5], [118.35, 14.75], [118.25, 15.0], [118.47, 15.53], [119.0, 15.75], [119.25, 15.65], [119.5, 15.75], [120.03, 15.53], [120.18, 15.18], [120.25, 15.15], [120.5, 15.25], [121.03, 15.03], [121.25, 14.5], [121.04, 14.0], [121.25, 13.5], [121.15, 13.25], [121.25, 13.0], [121.15, 12.75], [121.25, 12.5], [121.03, 11.97], [120.5, 11.75], [120.0, 11.96], [119.68, 11.82], [119.53, 11.47], [119.18, 11.32], [119.03, 10.97], [118.5, 10.75], [118.25, 10.85], [118.0, 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"description": "Maximum t2m anomaly recorded over entire duration", "value": 1.3896924368422106}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 1.0732434128671413}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [29.31110910633913, 29.42940880107733, 29.47994099677379, 29.546791392025455, 29.659864532346262, 29.501839917932614, 29.78754787240456]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [29.31110910633913, 29.499885214963854, 29.745936798248124, 29.768991582578053, 30.13642218719508, 30.122123401094996, 29.78754787240456]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [0.7712602505432073, 0.9021697108849575, 0.9679885906957016, 1.078024972631913, 1.199445486150023, 1.075257740618819, 1.0022743867233999]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [0.7712602505432073, 0.973674041440006, 1.1218029085503645, 1.2557634567216382, 1.3896924368422106, 1.3105043026142766, 1.0022743867233999]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.1228744845305334, 1.2715892411530347, 1.3125443983736431, 1.4304490950164965, 1.5800996465780504, 1.424949517732391, 1.3586467468108259]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.1228744845305334, 1.3961711698891766, 1.4896908020902233, 1.7406772605822576, 1.81317130597013, 1.7648806482253692, 1.3586467468108259]}}