{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 17:03:40.552303", "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": "2025-Feb-21_to_2025-Feb-26_69.5_38.5"}, "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": 2025020001844}, "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 21 2025"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "February 26 2025"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 6}, "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": 60908.608437905175}, "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": ["Afghanistan", "Tajikistan", "Uzbekistan"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["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": 38.5}, "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": 69.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "69.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 67.0}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 71.0}, "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": 39.0}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[67.0, 39.25], [67.25, 39.15], [67.5, 39.25], [67.75, 39.15], [67.82, 39.18], [67.97, 39.53], [68.5, 39.75], [69.03, 39.53], [69.18, 39.18], [69.25, 39.15], [69.5, 39.25], [69.75, 39.15], [70.0, 39.25], [70.25, 39.15], [70.5, 39.25], [70.75, 39.15], [71.0, 39.25], [71.53, 39.03], [71.75, 38.5], [71.53, 37.97], [71.18, 37.82], [71.15, 37.75], [71.25, 37.5], [71.03, 36.97], [70.68, 36.82], [70.53, 36.47], [70.0, 36.25], [69.75, 36.35], [69.5, 36.25], [69.25, 36.35], [69.0, 36.25], [68.75, 36.35], [68.5, 36.25], [67.97, 36.47], [67.75, 37.0], [67.88, 37.3], [67.75, 37.35], [67.5, 37.25], [66.97, 37.47], [66.82, 37.82], [66.47, 37.97], [66.25, 38.5], [66.47, 39.03], [67.0, 39.25]]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["W.C.Asia"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2025-02-21T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[68.5, 37.75], [67.97, 37.97], [67.75, 38.5], [67.97, 39.03], [68.5, 39.25], [68.75, 39.15], [69.0, 39.25], [69.25, 39.15], [69.5, 39.25], [70.03, 39.03], [70.25, 38.5], [70.03, 37.97], [69.5, 37.75], [69.25, 37.85], [69.0, 37.75], [68.75, 37.85], [68.5, 37.75]]]]}, "2025-02-22T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[66.47, 37.97], [66.25, 38.5], [66.47, 39.03], [67.0, 39.25], [67.25, 39.15], [67.5, 39.25], [67.75, 39.15], [67.82, 39.18], [67.97, 39.53], [68.5, 39.75], [69.03, 39.53], [69.18, 39.18], [69.25, 39.15], [69.5, 39.25], [69.75, 39.15], [70.0, 39.25], [70.25, 39.15], [70.5, 39.25], [71.03, 39.03], [71.25, 38.5], [71.15, 38.25], [71.25, 38.0], [71.03, 37.47], [70.68, 37.32], [70.65, 37.25], [70.75, 37.0], [70.53, 36.47], [70.0, 36.25], [69.75, 36.35], [69.5, 36.25], [69.25, 36.35], [69.0, 36.25], [68.75, 36.35], [68.5, 36.25], [67.97, 36.47], [67.75, 37.0], [67.88, 37.3], [67.75, 37.35], [67.5, 37.25], [66.97, 37.47], [66.82, 37.82], [66.47, 37.97]]]]}, "2025-02-23T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[66.47, 37.97], [66.25, 38.5], 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[70.47, 39.03]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 9.777937113359428}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 6.774220764066728}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [6.557207149929468, 8.42019468666848, 9.789091576470298, 8.050720113118473, 1.07480222913955, -5.80572611490885]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [7.2652692159016965, 14.227231597900413, 16.60531133015951, 14.488913472493493, 7.975911712646507, -5.80572611490885]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [5.4860806699767295, 6.461205764511138, 7.873450478433348, 6.545478107931142, 5.5701653444725805, 4.399371812270942]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [5.841115891978006, 8.066170283653037, 9.777937113359428, 9.208385843914755, 6.448119912822449, 4.399371812270942]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.2779356036074392, 1.5376287781954208, 1.86993127549831, 1.559498954377267, 1.5113462235964088, 1.2965844201956993]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.335525809687121, 1.7833804696100701, 2.2572829482431183, 1.9825799856706299, 1.5941327055045946, 1.2965844201956993]}}