{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 17:10:24.421384", "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": "2026-Feb-03_to_2026-Feb-05_61.5_30.0"}, "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": 2026020001181}, "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 03 2026"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "February 05 2026"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 3}, "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": 50691.704472515805}, "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", "Iran, Islamic Republic of", "Pakistan"]}, "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": 30.0}, "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": 61.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "61.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 60.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 62.75}, "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": 32.25}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[59.75, 31.0], [59.85, 31.25], [59.75, 31.5], [59.97, 32.03], [60.5, 32.25], [60.8, 32.13], [60.97, 32.53], [61.5, 32.75], [61.75, 32.65], [62.0, 32.75], [62.53, 32.53], [62.75, 32.0], [62.53, 31.47], [62.18, 31.32], [62.15, 31.25], [62.25, 31.0], [62.15, 30.75], [62.18, 30.68], [62.53, 30.53], [62.75, 30.0], [62.65, 29.75], [62.75, 29.5], [62.65, 29.25], [62.68, 29.18], [63.03, 29.03], [63.25, 28.5], [63.03, 27.97], [62.5, 27.75], [61.97, 27.97], [61.82, 28.32], [61.75, 28.35], [61.5, 28.25], [60.97, 28.47], [60.82, 28.82], [60.47, 28.97], [60.32, 29.32], [59.97, 29.47], [59.75, 30.0], [59.85, 30.25], [59.75, 30.5], [59.85, 30.75], [59.75, 31.0]]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["W.C.Asia", "S.Asia"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2026-02-03T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[59.75, 30.5], [59.85, 30.75], [59.75, 31.0], [59.85, 31.25], [59.75, 31.5], [59.97, 32.03], [60.5, 32.25], [60.8, 32.13], [60.97, 32.53], [61.5, 32.75], [61.75, 32.65], [62.0, 32.75], [62.53, 32.53], [62.75, 32.0], [62.53, 31.47], [62.18, 31.32], [62.15, 31.25], [62.25, 31.0], [62.15, 30.75], [62.18, 30.68], [62.53, 30.53], [62.75, 30.0], [62.65, 29.75], [62.75, 29.5], [62.65, 29.25], [62.68, 29.18], [63.03, 29.03], [63.25, 28.5], [63.03, 27.97], [62.5, 27.75], [61.97, 27.97], [61.82, 28.32], [61.75, 28.35], [61.5, 28.25], [60.97, 28.47], [60.82, 28.82], [60.47, 28.97], [60.32, 29.32], [59.97, 29.47], [59.75, 30.0], [59.85, 30.25], [59.75, 30.5]]]]}, "2026-02-04T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[59.75, 30.5], [59.85, 30.75], [59.75, 31.0], [59.85, 31.25], [59.75, 31.5], [59.97, 32.03], [60.5, 32.25], [60.8, 32.13], [60.97, 32.53], [61.5, 32.75], [61.75, 32.65], [62.0, 32.75], [62.53, 32.53], [62.75, 32.0], [62.53, 31.47], [62.18, 31.32], [62.15, 31.25], [62.25, 31.0], [62.15, 30.75], [62.18, 30.68], [62.53, 30.53], [62.75, 30.0], [62.65, 29.75], [62.75, 29.5], [62.65, 29.25], [62.68, 29.18], [63.03, 29.03], [63.25, 28.5], [63.03, 27.97], [62.5, 27.75], [61.97, 27.97], [61.82, 28.32], [61.75, 28.35], [61.5, 28.25], [60.97, 28.47], [60.82, 28.82], [60.47, 28.97], [60.32, 29.32], [59.97, 29.47], [59.75, 30.0], [59.85, 30.25], [59.75, 30.5]]]]}, "2026-02-05T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[59.75, 30.5], [59.85, 30.75], [59.75, 31.0], [59.85, 31.25], [59.75, 31.5], [59.97, 32.03], [60.5, 32.25], [60.8, 32.13], [60.97, 32.53], [61.5, 32.75], [61.75, 32.65], [62.0, 32.75], [62.53, 32.53], [62.75, 32.0], [62.53, 31.47], [62.18, 31.32], [62.15, 31.25], [62.25, 31.0], [62.15, 30.75], [62.18, 30.68], [62.53, 30.53], [62.75, 30.0], [62.65, 29.75], [62.75, 29.5], [62.65, 29.25], [62.68, 29.18], [63.03, 29.03], [63.25, 28.5], [63.03, 27.97], [62.5, 27.75], [61.97, 27.97], [61.82, 28.32], [61.75, 28.35], [61.5, 28.25], [60.97, 28.47], [60.82, 28.82], [60.47, 28.97], [60.32, 29.32], [59.97, 29.47], [59.75, 30.0], [59.85, 30.25], [59.75, 30.5]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 9.789348814752032}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 6.782747380788557}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [16.73197152656428, 19.10296308283222, 17.796116263406304]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [20.408001200358115, 22.64903284708663, 21.634482320149743]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [5.58935680640982, 8.009870162837304, 6.749015173118548]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [6.578368223623386, 9.789348814752032, 8.693769517130818]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.2725244316506423, 1.7767532150301402, 1.4494540908169296]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.500014634098559, 2.180252770039975, 1.879730416289053]}}