{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 17:10:36.507291", "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-20_to_2026-Feb-25_99.0_4.5"}, "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": 2026020002251}, "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 20 2026"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "February 25 2026"}, "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": 52409.50489954573}, "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": ["Malaysia"]}, "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": 4.5}, "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": 99.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "99.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 97.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 100.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 2.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 5.25}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[98.0, 5.75], [98.25, 5.65], [98.5, 5.75], [99.03, 5.53], [99.18, 5.18], [99.25, 5.15], [99.5, 5.25], [99.75, 5.15], [99.82, 5.18], [99.97, 5.53], [100.5, 5.75], [101.03, 5.53], [101.25, 5.0], [101.15, 4.75], [101.25, 4.5], [101.15, 4.25], [101.25, 4.0], [101.15, 3.75], [101.25, 3.5], [101.15, 3.25], [101.25, 3.0], [101.03, 2.47], [100.5, 2.25], [100.25, 2.35], [100.0, 2.25], [99.47, 2.47], [99.32, 2.82], [98.97, 2.97], [98.82, 3.32], [98.47, 3.47], [98.32, 3.82], [97.97, 3.97], [97.82, 4.32], [97.47, 4.47], [97.25, 5.0], [97.47, 5.53], [98.0, 5.75]]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["S.E.Asia"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2026-02-20T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[99.0, 3.75], [98.47, 3.97], [98.25, 4.5], [98.47, 5.03], [99.0, 5.25], [99.25, 5.15], [99.5, 5.25], [100.0, 5.04], [100.5, 5.25], [101.03, 5.03], [101.25, 4.5], [101.03, 3.97], [100.5, 3.75], [100.0, 3.96], [99.5, 3.75], [99.25, 3.85], [99.0, 3.75]]]]}, "2026-02-21T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[97.97, 4.47], [97.75, 5.0], [97.97, 5.53], [98.5, 5.75], [99.03, 5.53], [99.18, 5.18], [99.25, 5.15], [99.5, 5.25], [99.75, 5.15], [99.82, 5.18], [99.97, 5.53], [100.5, 5.75], [101.03, 5.53], [101.25, 5.0], [101.15, 4.75], [101.25, 4.5], [101.03, 3.97], [100.5, 3.75], [100.25, 3.85], [100.0, 3.75], [99.75, 3.85], [99.5, 3.75], [99.25, 3.85], [99.0, 3.75], [98.47, 3.97], [98.32, 4.32], [97.97, 4.47]]]]}, "2026-02-22T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[97.47, 4.47], [97.25, 5.0], [97.47, 5.53], [98.0, 5.75], [98.25, 5.65], [98.5, 5.75], [99.03, 5.53], [99.18, 5.18], [99.25, 5.15], [99.5, 5.25], [99.75, 5.15], [99.82, 5.18], [99.97, 5.53], [100.5, 5.75], [101.03, 5.53], [101.25, 5.0], [101.15, 4.75], [101.25, 4.5], [101.15, 4.25], [101.25, 4.0], [101.15, 3.75], [101.25, 3.5], [101.15, 3.25], [101.25, 3.0], [101.03, 2.47], [100.5, 2.25], [100.25, 2.35], [100.0, 2.25], [99.47, 2.47], [99.32, 2.82], [98.97, 2.97], [98.82, 3.32], [98.47, 3.47], [98.32, 3.82], [97.97, 3.97], [97.82, 4.32], [97.47, 4.47]]]]}, "2026-02-23T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[97.47, 4.47], [97.25, 5.0], [97.47, 5.53], [98.0, 5.75], [98.25, 5.65], [98.5, 5.75], [99.03, 5.53], [99.18, 5.18], [99.25, 5.15], [99.5, 5.25], [99.75, 5.15], [99.82, 5.18], [99.97, 5.53], [100.5, 5.75], [101.03, 5.53], [101.25, 5.0], [101.15, 4.75], [101.25, 4.5], [101.15, 4.25], [101.25, 4.0], [101.15, 3.75], [101.25, 3.5], [101.15, 3.25], [101.25, 3.0], [101.03, 2.47], [100.5, 2.25], [100.25, 2.35], [100.0, 2.25], [99.47, 2.47], [99.32, 2.82], [98.97, 2.97], [98.82, 3.32], [98.47, 3.47], [98.32, 3.82], [97.97, 3.97], [97.82, 4.32], [97.47, 4.47]]]]}, "2026-02-24T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[97.47, 4.47], [97.25, 5.0], [97.47, 5.53], [98.0, 5.75], [98.25, 5.65], [98.5, 5.75], [99.03, 5.53], [99.18, 5.18], [99.25, 5.15], [99.5, 5.25], [99.75, 5.15], [100.0, 5.25], [100.53, 5.03], [100.68, 4.68], [101.03, 4.53], [101.25, 4.0], [101.15, 3.75], [101.25, 3.5], [101.15, 3.25], [101.25, 3.0], [101.03, 2.47], [100.5, 2.25], [100.25, 2.35], [100.0, 2.25], [99.47, 2.47], [99.32, 2.82], [98.97, 2.97], [98.82, 3.32], [98.47, 3.47], [98.32, 3.82], [97.97, 3.97], [97.82, 4.32], [97.47, 4.47]]]]}, "2026-02-25T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[97.47, 4.47], [97.25, 5.0], [97.47, 5.53], [98.0, 5.75], [98.25, 5.65], [98.5, 5.75], [99.03, 5.53], [99.18, 5.18], [99.53, 5.03], [99.75, 4.5], [99.65, 4.25], [99.75, 4.0], [99.53, 3.47], [99.0, 3.25], [98.47, 3.47], [98.32, 3.82], [97.97, 3.97], [97.82, 4.32], [97.47, 4.47]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 1.3337492808860816}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 0.9738098158573841}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [27.984522332085533, 28.076849450005454, 28.215934633741256, 28.157685328464936, 28.257153235541466, 28.115156555175815]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [28.006684875488304, 28.16562169392904, 28.575893656412802, 28.370140329996786, 28.40409876505538, 28.27397816975912]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [0.7932483781632982, 0.8629938590986891, 1.0463871185961078, 0.9561607192415957, 1.0318522642922177, 0.8542425804617892]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [0.8332371567181553, 0.9689332202442529, 1.3337492808860816, 1.157454299684332, 1.2694403502057412, 0.904409000619296]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.379936329723482, 1.444574338592554, 1.7662454830899161, 1.6082830675754207, 1.6812409878428403, 1.4048493426420872]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.4670777817324143, 1.6728783075160614, 2.215654685052774, 1.992465773138596, 2.1444768251589936, 1.4552701688776695]}}