{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 16:17:47.853229", "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": "2022-Feb-16_to_2022-Feb-20_98.5_20.5"}, "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": 2022020002047}, "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": "February 16 2022"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "February 20 2022"}, "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": 57957.70011633742}, "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": 20.5}, "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": 98.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "98.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 97.5}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 101.0}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 19.0}, "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": [[[[99.82, 21.68], [99.97, 22.03], [100.32, 22.18], [100.47, 22.53], [101.0, 22.75], [101.53, 22.53], [101.75, 22.0], [101.65, 21.75], [101.75, 21.5], [101.53, 20.97], [101.18, 20.82], [101.15, 20.75], [101.25, 20.5], [101.15, 20.25], [101.25, 20.0], [101.15, 19.75], [101.25, 19.5], [101.03, 18.97], [100.5, 18.75], [100.25, 18.85], [100.0, 18.75], [99.75, 18.85], [99.5, 18.75], [99.2, 18.88], [99.03, 18.47], [98.5, 18.25], [97.97, 18.47], [97.75, 19.0], [97.85, 19.25], [97.8, 19.38], [97.5, 19.25], [96.97, 19.47], [96.75, 20.0], [96.97, 20.53], [97.32, 20.68], [97.47, 21.03], [98.0, 21.25], [98.25, 21.15], [98.32, 21.18], [98.47, 21.53], [99.0, 21.75], [99.5, 21.54], [99.61, 21.59], [99.82, 21.68]]]]}}, "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": {"2022-02-16T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[97.75, 19.5], [97.97, 20.03], [98.32, 20.18], [98.47, 20.53], [99.0, 20.75], [99.25, 20.65], [99.32, 20.68], [99.35, 20.75], [99.25, 21.0], [99.47, 21.53], [100.0, 21.75], [100.53, 21.53], [100.68, 21.18], [101.03, 21.03], [101.25, 20.5], [101.15, 20.25], [101.25, 20.0], [101.15, 19.75], [101.25, 19.5], [101.03, 18.97], [100.5, 18.75], [100.25, 18.85], [100.0, 18.75], [99.75, 18.85], [99.5, 18.75], [99.2, 18.88], [99.03, 18.47], [98.5, 18.25], [97.97, 18.47], [97.75, 19.0], [97.85, 19.25], [97.75, 19.5]]]]}, "2022-02-17T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[97.47, 21.03], [98.0, 21.25], [98.25, 21.15], [98.32, 21.18], [98.47, 21.53], [99.0, 21.75], [99.5, 21.54], [99.82, 21.68], [99.97, 22.03], [100.32, 22.18], [100.47, 22.53], [101.0, 22.75], [101.53, 22.53], [101.75, 22.0], [101.65, 21.75], [101.75, 21.5], [101.53, 20.97], [101.18, 20.82], [101.15, 20.75], [101.25, 20.5], [101.15, 20.25], [101.25, 20.0], [101.15, 19.75], [101.25, 19.5], [101.03, 18.97], [100.5, 18.75], [100.25, 18.85], [100.0, 18.75], [99.75, 18.85], [99.5, 18.75], [99.2, 18.88], [99.03, 18.47], [98.5, 18.25], [97.97, 18.47], [97.75, 19.0], [97.85, 19.25], [97.8, 19.38], [97.5, 19.25], [96.97, 19.47], [96.75, 20.0], [96.97, 20.53], [97.32, 20.68], [97.47, 21.03]]]]}, "2022-02-18T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[97.47, 21.03], [98.0, 21.25], [98.25, 21.15], [98.32, 21.18], [98.47, 21.53], [99.0, 21.75], [99.5, 21.54], [99.82, 21.68], [99.97, 22.03], [100.32, 22.18], [100.47, 22.53], [101.0, 22.75], [101.53, 22.53], [101.75, 22.0], [101.65, 21.75], [101.75, 21.5], [101.53, 20.97], [101.18, 20.82], [101.15, 20.75], [101.25, 20.5], [101.15, 20.25], [101.25, 20.0], [101.15, 19.75], [101.25, 19.5], [101.03, 18.97], [100.5, 18.75], [100.25, 18.85], [100.0, 18.75], [99.75, 18.85], [99.5, 18.75], [99.2, 18.88], [99.03, 18.47], [98.5, 18.25], [97.97, 18.47], [97.75, 19.0], [97.85, 19.25], [97.8, 19.38], [97.5, 19.25], [96.97, 19.47], [96.75, 20.0], [96.97, 20.53], [97.32, 20.68], [97.47, 21.03]]]]}, 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"Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 3.9938163717399107}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 2.5729654093499135}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [23.509563551614576, 23.417610292103063, 24.07536399411606, 22.49371147594104, 23.868383167991283]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [26.690959167953906, 27.779997450987707, 27.683358570740154, 24.484709911373443, 24.379029563007805]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [2.000273859362404, 2.4954501250988725, 3.045348681975318, 2.3670613343186844, 2.884051125656242]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [3.0065351512960206, 3.9938163717399107, 3.7725158496275526, 2.662679690226753, 3.3287369429215232]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.4567238856668407, 1.729226407840756, 2.044663259917086, 1.4641009129754141, 1.7682882260470678]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.9481891667069515, 2.5125919342870575, 2.3526170355491995, 1.6675146910264333, 2.006670146348815]}}