{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 16:52:57.732370", "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-Apr-24_to_2023-May-01_92.5_12.5"}, "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": 2023040002633}, "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": "April 24 2023"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "May 01 2023"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 8}, "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": 112206.2623142974}, "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": ["India"]}, "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": ["Andaman Basin", "Andaman 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": 12.5}, "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": 92.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "92.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 90.5}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 94.5}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 10.0}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 13.0}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[94.5, 9.75], [94.25, 9.85], [94.18, 9.82], [94.03, 9.47], [93.5, 9.25], [93.25, 9.35], [93.0, 9.25], [92.47, 9.47], [92.32, 9.82], [92.25, 9.85], [92.18, 9.82], [92.03, 9.47], [91.5, 9.25], [91.25, 9.35], [91.0, 9.25], [90.75, 9.35], [90.5, 9.25], [89.97, 9.47], [89.75, 10.0], [89.96, 10.5], [89.75, 11.0], [89.85, 11.25], [89.75, 11.5], [89.97, 12.03], [90.32, 12.18], [90.47, 12.53], [90.82, 12.68], [90.97, 13.03], [91.5, 13.25], [91.75, 13.15], [91.82, 13.18], [91.97, 13.53], [92.5, 13.75], [93.03, 13.53], [93.25, 13.0], [93.15, 12.75], [93.25, 12.5], [93.15, 12.25], [93.18, 12.18], [93.25, 12.15], [93.5, 12.25], [94.03, 12.03], [94.18, 11.68], [94.25, 11.65], [94.5, 11.75], [95.03, 11.53], [95.25, 11.0], [95.15, 10.75], [95.25, 10.5], [95.03, 9.97], [94.5, 9.75]]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["S.E.Asia", "Bay-of-Bengal"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2023-04-24T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[91.75, 12.5], [91.97, 13.03], [92.5, 13.25], [93.03, 13.03], [93.25, 12.5], [93.15, 12.25], [93.25, 12.0], [93.03, 11.47], [92.5, 11.25], [91.97, 11.47], [91.75, 12.0], [91.85, 12.25], [91.75, 12.5]]]]}, "2023-04-25T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[90.75, 12.0], [90.97, 12.53], [91.32, 12.68], [91.47, 13.03], [92.0, 13.25], [92.25, 13.15], [92.5, 13.25], [93.03, 13.03], [93.25, 12.5], [93.15, 12.25], [93.25, 12.0], [93.03, 11.47], [92.5, 11.25], [92.25, 11.35], [92.18, 11.32], [92.03, 10.97], [91.5, 10.75], [90.97, 10.97], [90.75, 11.5], [90.85, 11.75], [90.75, 12.0]]]]}, "2023-04-26T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[90.75, 12.0], [90.85, 12.25], [90.75, 12.5], [90.97, 13.03], [91.5, 13.25], [91.75, 13.15], [91.82, 13.18], [91.97, 13.53], [92.5, 13.75], [93.03, 13.53], [93.25, 13.0], [93.15, 12.75], [93.25, 12.5], [93.15, 12.25], [93.25, 12.0], [93.03, 11.47], [92.5, 11.25], [92.25, 11.35], [92.18, 11.32], [92.03, 10.97], [91.5, 10.75], [90.97, 10.97], [90.75, 11.5], [90.85, 11.75], [90.75, 12.0]]]]}, "2023-04-27T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[92.97, 9.97], [92.75, 10.5], [92.97, 11.03], [93.5, 11.25], [93.75, 11.15], [94.0, 11.25], [94.25, 11.15], [94.5, 11.25], [95.03, 11.03], [95.25, 10.5], [95.03, 9.97], [94.5, 9.75], [94.25, 9.85], [94.0, 9.75], [93.75, 9.85], [93.5, 9.75], [92.97, 9.97]]], [[[90.85, 12.25], [90.75, 12.5], [90.97, 13.03], [91.5, 13.25], [91.75, 13.15], [91.82, 13.18], [91.97, 13.53], [92.5, 13.75], [93.03, 13.53], [93.25, 13.0], [93.15, 12.75], [93.25, 12.5], [93.15, 12.25], [93.25, 12.0], [93.03, 11.47], [92.5, 11.25], [92.25, 11.35], [92.18, 11.32], [92.03, 10.97], [91.5, 10.75], [90.97, 10.97], [90.75, 11.5], [90.85, 11.75], [90.75, 12.0], [90.85, 12.25]]]]}, "2023-04-28T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[89.75, 11.5], [89.97, 12.03], [90.32, 12.18], [90.47, 12.53], [90.82, 12.68], [90.97, 13.03], [91.5, 13.25], [91.75, 13.15], [91.82, 13.18], [91.97, 13.53], [92.5, 13.75], [93.03, 13.53], [93.25, 13.0], [93.15, 12.75], [93.25, 12.5], [93.15, 12.25], [93.18, 12.18], [93.25, 12.15], [93.5, 12.25], [94.03, 12.03], [94.18, 11.68], [94.25, 11.65], [94.5, 11.75], [95.03, 11.53], [95.25, 11.0], [95.15, 10.75], [95.25, 10.5], [95.03, 9.97], [94.5, 9.75], [94.25, 9.85], [94.18, 9.82], [94.03, 9.47], [93.5, 9.25], [93.25, 9.35], [93.0, 9.25], [92.47, 9.47], [92.32, 9.82], [92.25, 9.85], [92.18, 9.82], [92.03, 9.47], [91.5, 9.25], [91.25, 9.35], [91.0, 9.25], [90.75, 9.35], [90.5, 9.25], [89.97, 9.47], [89.75, 10.0], [89.96, 10.5], [89.75, 11.0], [89.85, 11.25], [89.75, 11.5]]]]}, "2023-04-29T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[89.75, 11.5], [89.97, 12.03], [90.32, 12.18], [90.47, 12.53], [90.82, 12.68], [90.97, 13.03], [91.5, 13.25], [91.75, 13.15], [92.0, 13.25], [92.25, 13.15], [92.5, 13.25], [93.03, 13.03], [93.25, 12.5], [93.15, 12.25], [93.18, 12.18], [93.25, 12.15], [93.5, 12.25], [94.03, 12.03], [94.18, 11.68], [94.25, 11.65], [94.5, 11.75], [95.03, 11.53], [95.25, 11.0], [95.15, 10.75], [95.25, 10.5], [95.03, 9.97], [94.5, 9.75], [94.25, 9.85], [94.18, 9.82], [94.03, 9.47], [93.5, 9.25], [93.25, 9.35], [93.0, 9.25], [92.47, 9.47], [92.32, 9.82], [92.25, 9.85], [92.18, 9.82], [92.03, 9.47], [91.5, 9.25], [91.25, 9.35], [91.0, 9.25], [90.75, 9.35], [90.5, 9.25], [89.97, 9.47], [89.75, 10.0], [89.96, 10.5], [89.75, 11.0], [89.85, 11.25], [89.75, 11.5]]]]}, "2023-04-30T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[89.75, 11.5], [89.97, 12.03], [90.32, 12.18], [90.47, 12.53], [91.0, 12.75], [91.25, 12.65], [91.32, 12.68], [91.47, 13.03], [92.0, 13.25], [92.25, 13.15], [92.5, 13.25], [93.03, 13.03], [93.25, 12.5], [93.15, 12.25], [93.18, 12.18], [93.25, 12.15], [93.5, 12.25], [94.03, 12.03], [94.18, 11.68], [94.25, 11.65], [94.5, 11.75], [95.03, 11.53], [95.25, 11.0], [95.15, 10.75], [95.25, 10.5], [95.03, 9.97], [94.5, 9.75], [94.25, 9.85], [94.18, 9.82], [94.03, 9.47], [93.5, 9.25], [93.25, 9.35], [93.0, 9.25], [92.47, 9.47], [92.32, 9.82], [92.25, 9.85], [92.18, 9.82], [92.03, 9.47], [91.5, 9.25], [91.25, 9.35], [91.0, 9.25], [90.75, 9.35], [90.5, 9.25], [89.97, 9.47], [89.75, 10.0], [89.96, 10.5], [89.75, 11.0], [89.85, 11.25], [89.75, 11.5]]]]}, "2023-05-01T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[91.97, 13.03], [92.5, 13.25], [93.03, 13.03], [93.25, 12.5], [93.15, 12.25], [93.25, 12.0], [93.03, 11.47], [92.5, 11.25], [92.0, 11.46], [91.5, 11.25], [90.97, 11.47], [90.75, 12.0], [90.97, 12.53], [91.5, 12.75], [91.8, 12.63], [91.97, 13.03]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 1.7200927843170462}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 1.1940655852257436}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [29.664276263025272, 29.686310788144112, 29.712803218442332, 29.671106820576142, 29.564739768901745, 29.615269765696326, 29.57107284587721, 29.443009351298485]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [29.80577404451867, 29.814843469804657, 29.80857598078586, 30.225695808773537, 29.808281040126133, 29.867711583056632, 29.787413988452045, 29.580088285682166]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [1.0548503695181353, 1.0404035969548033, 1.0933828663229122, 1.1528330156649325, 1.1707597388915274, 1.2623768577339807, 1.234047394267736, 1.0512198007532068]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [1.1848566958120728, 1.1304472864918012, 1.2344365555653667, 1.7200927843170462, 1.3511421954241314, 1.5395175923801503, 1.510998259041628, 1.187069035028685]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.5133571669061365, 1.4188466940063413, 1.4718022029770785, 1.511074225071017, 1.5974898572966985, 1.7014207431238482, 1.6680580299057999, 1.4774866315506783]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.7147000256375469, 1.563572630577354, 1.664614041816136, 2.3086114527517805, 1.8769458089119015, 1.9567420263172897, 1.9773586626963933, 1.6214533795520583]}}