{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:18:41.318854", "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": "2020-Jan-20_to_2020-Jan-23_107.0_29.5"}, "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": 2020010002052}, "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": "January 20 2020"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "January 23 2020"}, "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": 69702.93070963361}, "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"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["E.Asia"]}, "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": []}, "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": 29.5}, "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": 107.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "107.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 104.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 107.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 28.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 31.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2020-01-20T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[105.47, 31.03], [106.0, 31.25], [106.25, 31.15], [106.5, 31.25], [107.03, 31.03], [107.25, 30.5], [107.13, 30.2], [107.53, 30.03], [107.75, 29.5], [107.53, 28.97], [107.0, 28.75], [106.47, 28.97], [106.3, 29.38], [106.0, 29.25], [105.47, 29.47], [105.25, 30.0], [105.35, 30.25], [105.25, 30.5], [105.47, 31.03]]]]}, "2020-01-21T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[103.85, 30.75], [103.75, 31.0], [103.97, 31.53], [104.5, 31.75], [104.75, 31.65], [105.0, 31.75], [105.25, 31.65], [105.5, 31.75], [106.03, 31.53], [106.18, 31.18], [106.25, 31.15], [106.5, 31.25], [106.75, 31.15], [107.0, 31.25], [107.53, 31.03], [107.68, 30.68], [108.03, 30.53], [108.25, 30.0], [108.03, 29.47], [107.68, 29.32], [107.53, 28.97], [107.18, 28.82], [107.15, 28.75], [107.25, 28.5], [107.03, 27.97], [106.5, 27.75], [106.25, 27.85], [106.0, 27.75], [105.47, 27.97], [105.32, 28.32], [105.25, 28.35], [105.0, 28.25], [104.47, 28.47], [104.25, 29.0], [104.35, 29.25], [104.32, 29.32], [103.97, 29.47], [103.75, 30.0], [103.85, 30.25], [103.75, 30.5], [103.85, 30.75]]]]}, "2020-01-22T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[103.85, 30.75], [103.75, 31.0], [103.97, 31.53], [104.5, 31.75], [104.75, 31.65], [105.0, 31.75], [105.25, 31.65], [105.5, 31.75], [106.03, 31.53], [106.18, 31.18], [106.25, 31.15], [106.5, 31.25], [106.75, 31.15], [107.0, 31.25], [107.53, 31.03], [107.68, 30.68], [108.03, 30.53], [108.25, 30.0], [108.03, 29.47], [107.68, 29.32], [107.53, 28.97], [107.18, 28.82], [107.15, 28.75], [107.25, 28.5], [107.03, 27.97], [106.5, 27.75], [106.25, 27.85], [106.0, 27.75], [105.47, 27.97], [105.32, 28.32], [105.25, 28.35], [105.0, 28.25], [104.47, 28.47], [104.25, 29.0], [104.35, 29.25], [104.32, 29.32], [103.97, 29.47], [103.75, 30.0], [103.85, 30.25], [103.75, 30.5], [103.85, 30.75]]]]}, "2020-01-23T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[103.85, 30.75], [103.75, 31.0], [103.97, 31.53], [104.5, 31.75], [104.75, 31.65], [105.0, 31.75], [105.25, 31.65], [105.5, 31.75], [106.03, 31.53], [106.18, 31.18], [106.25, 31.15], [106.5, 31.25], [106.75, 31.15], [107.0, 31.25], [107.53, 31.03], [107.68, 30.68], [108.03, 30.53], [108.25, 30.0], [108.03, 29.47], [107.68, 29.32], [107.53, 28.97], [107.18, 28.82], [107.15, 28.75], [107.25, 28.5], [107.03, 27.97], [106.5, 27.75], [106.25, 27.85], [106.0, 27.75], [105.47, 27.97], [105.32, 28.32], [105.25, 28.35], [105.0, 28.25], [104.47, 28.47], [104.25, 29.0], [104.35, 29.25], [104.32, 29.32], [103.97, 29.47], [103.75, 30.0], [103.85, 30.25], [103.75, 30.5], [103.85, 30.75]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 4.493789900935212}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 3.3116063781615486}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [9.90907835323543, 10.327166791032937, 11.21397876901716, 10.463432299874228]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [10.176194374843078, 11.606562020324134, 12.556704874803927, 11.387303570176073]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [2.473160081956223, 3.0736348946697225, 3.9006017526130368, 3.0895742250796294]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [2.6066747020179264, 3.7461799025749656, 4.493789900935212, 3.9500358978245913]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.2152876888990933, 1.4444568164907563, 1.7945744413952203, 1.3824853658495906]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.2589329043051687, 1.8010728777163236, 2.1993142221399196, 1.5553165545399044]}}