{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 16:55:49.601984", "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-Oct-24_to_2023-Oct-27_99.0_19.5"}, "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": 2023100002053}, "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": "October 24 2023"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "October 27 2023"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 4}, "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": 84102.36386911196}, "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": ["China", "Lao People's Democratic Republic", "Myanmar", "Thailand"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["Asia", "Asia", "Asia", "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": []}, "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": 19.5}, "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": 99.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "99.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 98.5}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 103.0}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 18.5}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 22.0}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[99.43, 20.57], [99.25, 21.0], [99.47, 21.53], [100.0, 21.75], [100.25, 21.65], [100.32, 21.68], [100.47, 22.03], [100.82, 22.18], [100.97, 22.53], [101.5, 22.75], [102.03, 22.53], [102.18, 22.18], [102.53, 22.03], [102.68, 21.68], [102.75, 21.65], [103.0, 21.75], [103.53, 21.53], [103.75, 21.0], [103.53, 20.47], [103.0, 20.25], [102.75, 20.35], [102.68, 20.32], [102.53, 19.97], [102.18, 19.82], [102.03, 19.47], [101.5, 19.25], [101.25, 19.35], [101.18, 19.32], [101.09, 19.11], [101.04, 19.0], [101.25, 18.5], [101.03, 17.97], [100.5, 17.75], [100.25, 17.85], [100.0, 17.75], [99.75, 17.85], [99.5, 17.75], [98.97, 17.97], [98.8, 18.38], [98.5, 18.25], [97.97, 18.47], [97.75, 19.0], [97.97, 19.53], [98.32, 19.68], [98.35, 19.75], [98.25, 20.0], [98.47, 20.53], [99.0, 20.75], [99.43, 20.57]]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["E.Asia", "S.Asia", "S.E.Asia"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2023-10-24T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[98.25, 20.0], [98.47, 20.53], [99.0, 20.75], [99.53, 20.53], [99.68, 20.18], [99.8, 20.13], [99.85, 20.25], [99.75, 20.5], [99.85, 20.75], [99.75, 21.0], [99.97, 21.53], [100.5, 21.75], [101.03, 21.53], [101.25, 21.0], [101.15, 20.75], [101.18, 20.68], [101.53, 20.53], [101.75, 20.0], [101.53, 19.47], [101.0, 19.25], [100.75, 19.35], [100.63, 19.3], [100.68, 19.18], [101.03, 19.03], [101.25, 18.5], [101.03, 17.97], [100.5, 17.75], [100.25, 17.85], [100.0, 17.75], [99.75, 17.85], [99.5, 17.75], [98.97, 17.97], [98.75, 18.5], [98.85, 18.75], [98.82, 18.82], [98.47, 18.97], [98.25, 19.5], [98.35, 19.75], [98.25, 20.0]]]]}, "2023-10-25T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[98.35, 19.75], [98.25, 20.0], [98.47, 20.53], [99.0, 20.75], [99.43, 20.57], [99.25, 21.0], [99.47, 21.53], [100.0, 21.75], [100.25, 21.65], [100.32, 21.68], [100.47, 22.03], [100.82, 22.18], [100.97, 22.53], [101.5, 22.75], [102.03, 22.53], [102.18, 22.18], [102.53, 22.03], [102.68, 21.68], [102.75, 21.65], [103.0, 21.75], [103.53, 21.53], [103.75, 21.0], [103.53, 20.47], [103.0, 20.25], [102.75, 20.35], [102.68, 20.32], [102.53, 19.97], [102.18, 19.82], [102.03, 19.47], [101.5, 19.25], [101.25, 19.35], [101.18, 19.32], [101.04, 19.0], [101.25, 18.5], [101.03, 17.97], [100.5, 17.75], [100.25, 17.85], [100.0, 17.75], [99.75, 17.85], [99.5, 17.75], [98.97, 17.97], [98.8, 18.38], [98.5, 18.25], [97.97, 18.47], [97.75, 19.0], [97.97, 19.53], [98.32, 19.68], [98.35, 19.75]]]]}, "2023-10-26T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[98.35, 19.75], [98.25, 20.0], [98.47, 20.53], [99.0, 20.75], [99.43, 20.57], [99.25, 21.0], [99.47, 21.53], [100.0, 21.75], [100.25, 21.65], [100.32, 21.68], [100.47, 22.03], [100.82, 22.18], [100.97, 22.53], [101.5, 22.75], [102.03, 22.53], [102.18, 22.18], [102.53, 22.03], [102.68, 21.68], [102.75, 21.65], [103.0, 21.75], [103.53, 21.53], [103.75, 21.0], [103.53, 20.47], [103.0, 20.25], [102.75, 20.35], [102.68, 20.32], [102.53, 19.97], [102.18, 19.82], [102.03, 19.47], [101.5, 19.25], [101.25, 19.35], [101.18, 19.32], [101.04, 19.0], [101.25, 18.5], [101.03, 17.97], [100.5, 17.75], [100.25, 17.85], [100.0, 17.75], [99.75, 17.85], [99.5, 17.75], [98.97, 17.97], [98.8, 18.38], [98.5, 18.25], [97.97, 18.47], [97.75, 19.0], [97.97, 19.53], [98.32, 19.68], [98.35, 19.75]]]]}, "2023-10-27T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[98.35, 19.75], [98.25, 20.0], [98.47, 20.53], [99.0, 20.75], [99.43, 20.57], [99.25, 21.0], [99.47, 21.53], [100.0, 21.75], [100.25, 21.65], [100.32, 21.68], [100.47, 22.03], [100.82, 22.18], [100.97, 22.53], [101.5, 22.75], [102.03, 22.53], [102.18, 22.18], [102.53, 22.03], [102.68, 21.68], [102.75, 21.65], [103.0, 21.75], [103.53, 21.53], [103.75, 21.0], [103.53, 20.47], [103.0, 20.25], [102.75, 20.35], [102.68, 20.32], [102.53, 19.97], [102.18, 19.82], [102.03, 19.47], [101.5, 19.25], [101.2, 19.38], [101.03, 18.97], [100.5, 18.75], [99.97, 18.97], [99.82, 19.32], [99.7, 19.38], [99.53, 18.97], [99.18, 18.82], [99.03, 18.47], [98.5, 18.25], [97.97, 18.47], [97.75, 19.0], [97.97, 19.53], [98.32, 19.68], [98.35, 19.75]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 2.635740115675958}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 1.845490668159543}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [25.922724519291023, 25.02737249291897, 24.841026262245634, 23.81641038117027]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [28.043137370364832, 28.246088763036084, 27.542810070002986, 26.618798744457365]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [1.6865682848605228, 1.9900937893153752, 1.8926358433358716, 1.671508192252667]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [2.1571860597322825, 2.360138037104093, 2.635740115675958, 2.0580186536232077]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.301265825316811, 1.4926089256722288, 1.423515344310157, 1.1945354724103574]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.7496320437456814, 1.962740411429059, 1.854658771999256, 1.3552608413325038]}}