{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 16:58:02.750895", "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": "2024-Mar-13_to_2024-Mar-19_110.5_17.0"}, "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": 2024030001402}, "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": "March 13 2024"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "March 19 2024"}, "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": 148162.9254156536}, "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"]}, "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": 17.0}, "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": 110.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "110.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 108.0}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 112.5}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 14.5}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 19.0}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[109.47, 14.47], [109.32, 14.82], [108.97, 14.97], [108.75, 15.5], [108.85, 15.75], [108.82, 15.82], [108.47, 15.97], 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"description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2024-03-13T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[108.75, 17.5], [108.97, 18.03], [109.5, 18.25], [109.75, 18.15], [110.0, 18.25], [110.25, 18.15], [110.5, 18.25], [111.03, 18.03], [111.25, 17.5], [111.15, 17.25], [111.25, 17.0], [111.03, 16.47], [110.5, 16.25], [110.25, 16.35], [110.0, 16.25], [109.75, 16.35], [109.5, 16.25], [108.97, 16.47], [108.75, 17.0], [108.85, 17.25], [108.75, 17.5]]]]}, "2024-03-14T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[107.47, 16.97], [107.25, 17.5], [107.47, 18.03], [107.88, 18.2], [107.75, 18.5], [107.97, 19.03], [108.5, 19.25], [109.03, 19.03], [109.25, 18.5], [109.13, 18.2], [109.25, 18.15], [109.5, 18.25], [109.75, 18.15], [110.0, 18.25], [110.25, 18.15], [110.5, 18.25], [110.75, 18.15], [111.0, 18.25], [111.53, 18.03], [111.68, 17.68], [112.03, 17.53], [112.18, 17.18], [112.53, 17.03], [112.75, 16.5], 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t2m anomaly over entire duration", "value": 1.2621107577552257}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [25.536369598517524, 26.191672436993485, 26.48126494585415, 26.502355748108243, 26.48642973306295, 26.39277208010958, 26.398043948331065]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [25.766289647468852, 26.886990312279238, 27.257493383070937, 27.2421013476432, 27.18476419197441, 27.027269383972907, 26.672814880925728]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [0.9991285866357202, 1.1327417168823715, 1.3230334697746158, 1.3346332076889496, 1.234296461309731, 1.311936419873601, 1.0144773596599446]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": 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