{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 16:51:20.804857", "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": "2023-Feb-16_to_2023-Feb-21_119.5_8.0"}, "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": 2023020002063}, "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": "February 16 2023"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "February 21 2023"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 6}, "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": 55086.92019077708}, "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": ["Sulu 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": 8.0}, "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": 119.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "119.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 117.5}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 120.0}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 7.0}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 9.5}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[116.85, 7.75], [116.75, 8.0], [116.97, 8.53], [117.32, 8.68], [117.47, 9.03], [118.0, 9.25], [118.3, 9.13], [118.47, 9.53], [118.82, 9.68], [118.97, 10.03], [119.5, 10.25], [120.03, 10.03], [120.25, 9.5], [120.15, 9.25], [120.25, 9.0], [120.15, 8.75], [120.18, 8.68], [120.53, 8.53], [120.75, 8.0], [120.65, 7.75], [120.75, 7.5], [120.53, 6.97], [120.0, 6.75], [119.75, 6.85], [119.5, 6.75], [119.25, 6.85], [119.18, 6.82], [119.03, 6.47], [118.5, 6.25], [117.97, 6.47], [117.82, 6.82], [117.75, 6.85], [117.5, 6.75], [116.97, 6.97], [116.75, 7.5], [116.85, 7.75]]]]}}, "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": {"2023-02-16T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[118.75, 8.5], [118.97, 9.03], [119.5, 9.25], [120.03, 9.03], [120.18, 8.68], [120.53, 8.53], [120.75, 8.0], [120.53, 7.47], [120.0, 7.25], [119.75, 7.35], [119.5, 7.25], [118.97, 7.47], [118.75, 8.0], [118.85, 8.25], [118.75, 8.5]]]]}, "2023-02-17T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[117.5, 6.75], [116.97, 6.97], [116.75, 7.5], [116.97, 8.03], [117.5, 8.25], [117.75, 8.15], [118.0, 8.25], [118.25, 8.15], [118.5, 8.25], [118.75, 8.15], [118.82, 8.18], [118.85, 8.25], [118.75, 8.5], [118.97, 9.03], [119.5, 9.25], [120.03, 9.03], [120.18, 8.68], [120.53, 8.53], [120.75, 8.0], [120.65, 7.75], [120.75, 7.5], [120.53, 6.97], [120.0, 6.75], [119.75, 6.85], [119.5, 6.75], [119.25, 6.85], [119.18, 6.82], [119.03, 6.47], [118.5, 6.25], [117.97, 6.47], [117.82, 6.82], [117.75, 6.85], [117.5, 6.75]]]]}, "2023-02-18T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[116.75, 8.0], [116.97, 8.53], [117.32, 8.68], [117.47, 9.03], [118.0, 9.25], [118.3, 9.13], [118.47, 9.53], [118.82, 9.68], [118.97, 10.03], [119.5, 10.25], [120.03, 10.03], [120.25, 9.5], [120.15, 9.25], [120.25, 9.0], [120.15, 8.75], [120.18, 8.68], [120.53, 8.53], [120.75, 8.0], [120.65, 7.75], [120.75, 7.5], [120.53, 6.97], [120.0, 6.75], [119.75, 6.85], [119.5, 6.75], [119.25, 6.85], [119.18, 6.82], [119.03, 6.47], [118.5, 6.25], [117.97, 6.47], [117.82, 6.82], [117.75, 6.85], [117.5, 6.75], [116.97, 6.97], [116.75, 7.5], [116.85, 7.75], [116.75, 8.0]]]]}, "2023-02-19T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[116.75, 8.0], [116.97, 8.53], [117.32, 8.68], [117.47, 9.03], [118.0, 9.25], [118.3, 9.13], [118.47, 9.53], [118.82, 9.68], [118.97, 10.03], [119.5, 10.25], [120.03, 10.03], [120.25, 9.5], [120.15, 9.25], [120.25, 9.0], [120.15, 8.75], [120.25, 8.5], [120.15, 8.25], [120.18, 8.18], [120.53, 8.03], [120.75, 7.5], [120.53, 6.97], [120.0, 6.75], [119.75, 6.85], [119.5, 6.75], [119.25, 6.85], [119.18, 6.82], [119.03, 6.47], [118.5, 6.25], [117.97, 6.47], [117.82, 6.82], [117.75, 6.85], [117.5, 6.75], [116.97, 6.97], [116.75, 7.5], [116.85, 7.75], [116.75, 8.0]]]]}, "2023-02-20T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[116.97, 7.47], [116.75, 8.0], [116.97, 8.53], [117.32, 8.68], [117.47, 9.03], [118.0, 9.25], [118.3, 9.13], [118.47, 9.53], [118.82, 9.68], [118.97, 10.03], [119.5, 10.25], [120.03, 10.03], [120.25, 9.5], [120.15, 9.25], [120.25, 9.0], [120.15, 8.75], [120.25, 8.5], [120.15, 8.25], [120.18, 8.18], [120.53, 8.03], [120.75, 7.5], [120.53, 6.97], [120.0, 6.75], [119.75, 6.85], [119.5, 6.75], [119.25, 6.85], [119.0, 6.75], [118.75, 6.85], [118.5, 6.75], [118.25, 6.85], [118.0, 6.75], [117.47, 6.97], [117.32, 7.32], [116.97, 7.47]]]]}, "2023-02-21T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[118.5, 6.75], [117.97, 6.97], [117.75, 7.5], [117.97, 8.03], [118.5, 8.25], [118.75, 8.15], [118.82, 8.18], [118.97, 8.53], [119.5, 8.75], [120.03, 8.53], [120.18, 8.18], [120.53, 8.03], [120.75, 7.5], [120.53, 6.97], [120.0, 6.75], [119.75, 6.85], [119.5, 6.75], [119.25, 6.85], [119.0, 6.75], [118.75, 6.85], [118.5, 6.75]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 0.9910366962535591}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 0.7067812367026559}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [27.129754786946535, 27.22285267268535, 27.210601181009963, 27.129002244192748, 27.22664629678934, 27.215156781823566]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [27.139022670496672, 27.389920685458094, 27.371562294119485, 27.215915063204932, 27.383668189857246, 27.320012463367846]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [0.6247647214096901, 0.7289199070417851, 0.7468543772791002, 0.6612572278705349, 0.7393644153119264, 0.6244825933263769]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [0.7061212213315002, 0.9350124880665476, 0.8444494832627925, 0.7364305278558732, 0.9910366962535591, 0.6937805977935909]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.5031479372668979, 1.6925134345515729, 1.735855053662797, 1.5317314376761877, 1.6944513622706963, 1.4645109517182349]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.7345726464756823, 2.1448058321504297, 1.941824141049763, 1.729401958938433, 2.281109137557623, 1.6792877269070208]}}