{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 16:58:01.943744", "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-12_to_2024-Mar-16_119.5_40.0"}, "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": 2024030001360}, "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 12 2024"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "March 16 2024"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 5}, "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": 60005.77161544053}, "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": ["Bohai 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": 40.0}, "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": 121.0}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 37.0}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 41.0}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[119.5, 36.25], [119.25, 36.35], [119.0, 36.25], [118.75, 36.35], [118.5, 36.25], [117.97, 36.47], [117.75, 37.0], [117.85, 37.25], [117.82, 37.32], [117.47, 37.47], [117.32, 37.82], [116.97, 37.97], [116.75, 38.5], [116.85, 38.75], [116.75, 39.0], [116.97, 39.53], [117.32, 39.68], [117.35, 39.75], [117.25, 40.0], [117.47, 40.53], [117.82, 40.68], [117.97, 41.03], [118.5, 41.25], [118.75, 41.15], [119.0, 41.25], [119.5, 41.04], [120.0, 41.25], [120.25, 41.15], [120.32, 41.18], [120.47, 41.53], [121.0, 41.75], [121.53, 41.53], [121.75, 41.0], [121.65, 40.75], [121.75, 40.5], [121.53, 39.97], [121.0, 39.75], [120.75, 39.85], [120.68, 39.82], [120.53, 39.47], [120.0, 39.25], [119.75, 39.35], [119.5, 39.25], [119.25, 39.35], [119.18, 39.32], [119.03, 38.97], [118.63, 38.8], [118.68, 38.68], [118.75, 38.65], [119.0, 38.75], [119.53, 38.53], [119.7, 38.13], [120.0, 38.25], [120.53, 38.03], [120.75, 37.5], [120.53, 36.97], [120.18, 36.82], [120.03, 36.47], [119.5, 36.25]]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["E.Asia"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2024-03-12T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[120.47, 41.53], [121.0, 41.75], [121.53, 41.53], [121.75, 41.0], [121.53, 40.47], [121.0, 40.25], [120.47, 40.47], [120.25, 41.0], [120.47, 41.53]]]]}, "2024-03-13T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[118.25, 37.5], [118.47, 38.03], [119.0, 38.25], [119.53, 38.03], [119.68, 37.68], [120.03, 37.53], [120.25, 37.0], [120.03, 36.47], [119.5, 36.25], [118.97, 36.47], [118.82, 36.82], [118.47, 36.97], [118.25, 37.5]]], [[[117.97, 39.97], [117.75, 40.5], [117.97, 41.03], [118.5, 41.25], [118.75, 41.15], [119.0, 41.25], [119.53, 41.03], [119.68, 40.68], [119.75, 40.65], [120.0, 40.75], [120.43, 40.57], [120.25, 41.0], [120.47, 41.53], [121.0, 41.75], [121.53, 41.53], [121.75, 41.0], [121.53, 40.47], [121.0, 40.25], [120.57, 40.43], [120.75, 40.0], [120.53, 39.47], [120.0, 39.25], [119.75, 39.35], [119.5, 39.25], [118.97, 39.47], [118.82, 39.82], [118.75, 39.85], [118.5, 39.75], [117.97, 39.97]]]]}, "2024-03-14T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[116.75, 39.0], [116.97, 39.53], [117.32, 39.68], [117.35, 39.75], [117.25, 40.0], [117.47, 40.53], [117.82, 40.68], [117.97, 41.03], [118.5, 41.25], [118.75, 41.15], [119.0, 41.25], [119.5, 41.04], [120.0, 41.25], [120.25, 41.15], [120.32, 41.18], [120.47, 41.53], [121.0, 41.75], [121.53, 41.53], [121.75, 41.0], [121.65, 40.75], [121.75, 40.5], [121.53, 39.97], [121.0, 39.75], [120.75, 39.85], [120.68, 39.82], [120.53, 39.47], [120.0, 39.25], [119.75, 39.35], [119.5, 39.25], [119.25, 39.35], [119.18, 39.32], [119.03, 38.97], [118.63, 38.8], [118.68, 38.68], [118.75, 38.65], [119.0, 38.75], [119.53, 38.53], [119.7, 38.13], [120.0, 38.25], [120.53, 38.03], [120.75, 37.5], [120.53, 36.97], [120.18, 36.82], [120.03, 36.47], [119.5, 36.25], [119.25, 36.35], [119.0, 36.25], 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15.16898267758387, 14.764412874352786]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [3.7811713426396523, 4.097501262894647, 6.21913321517718, 5.126526148264788, 5.022840886277059]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [3.7811713426396523, 5.114632673336814, 9.668230679287149, 7.475137044729365, 6.50540865731665]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.2857497913140858, 1.4074463714983072, 1.950306369857016, 1.5450996327722586, 1.5255168800581977]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.2857497913140858, 1.586060010781319, 2.8264913772178684, 1.863919575985354, 1.882405904690674]}}