{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 17:10:24.584578", "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_115.0_34.5"}, "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": 2026020001185}, "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": 84426.50187354929}, "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"]}, "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": 34.5}, "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": 115.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "115.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 113.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 119.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 32.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 35.25}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[113.25, 35.0], [113.47, 35.53], [114.0, 35.75], [114.25, 35.65], [114.5, 35.75], [115.03, 35.53], [115.18, 35.18], [115.25, 35.15], [115.32, 35.18], [115.47, 35.53], [116.0, 35.75], [116.25, 35.65], [116.5, 35.75], [117.03, 35.53], [117.18, 35.18], [117.25, 35.15], [117.5, 35.25], [117.75, 35.15], [118.0, 35.25], [118.25, 35.15], [118.5, 35.25], [118.75, 35.15], [119.0, 35.25], [119.53, 35.03], [119.75, 34.5], [119.65, 34.25], [119.75, 34.0], [119.53, 33.47], [119.13, 33.3], [119.25, 33.0], [119.03, 32.47], [118.5, 32.25], [118.25, 32.35], [118.0, 32.25], [117.75, 32.35], [117.5, 32.25], [116.97, 32.47], [116.82, 32.82], [116.75, 32.85], [116.5, 32.75], [115.97, 32.97], [115.82, 33.32], [115.75, 33.35], [115.5, 33.25], [115.25, 33.35], [115.0, 33.25], [114.75, 33.35], [114.5, 33.25], [114.25, 33.35], [114.0, 33.25], [113.47, 33.47], [113.25, 34.0], [113.35, 34.25], [113.25, 34.5], [113.35, 34.75], [113.25, 35.0]]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["E.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": [[[[113.25, 34.5], [113.35, 34.75], [113.25, 35.0], [113.47, 35.53], [114.0, 35.75], [114.25, 35.65], [114.5, 35.75], [115.03, 35.53], [115.18, 35.18], [115.25, 35.15], [115.32, 35.18], [115.47, 35.53], [116.0, 35.75], [116.25, 35.65], [116.5, 35.75], [117.03, 35.53], [117.18, 35.18], [117.25, 35.15], [117.5, 35.25], [117.75, 35.15], [118.0, 35.25], [118.25, 35.15], [118.5, 35.25], [118.75, 35.15], [119.0, 35.25], [119.53, 35.03], [119.75, 34.5], [119.65, 34.25], [119.75, 34.0], [119.53, 33.47], [119.13, 33.3], [119.25, 33.0], [119.03, 32.47], [118.5, 32.25], [118.25, 32.35], [118.0, 32.25], [117.75, 32.35], [117.5, 32.25], [116.97, 32.47], [116.82, 32.82], [116.75, 32.85], [116.5, 32.75], [115.97, 32.97], [115.82, 33.32], [115.75, 33.35], [115.5, 33.25], [115.25, 33.35], [115.0, 33.25], [114.75, 33.35], [114.5, 33.25], [114.25, 33.35], [114.0, 33.25], [113.47, 33.47], [113.25, 34.0], [113.35, 34.25], [113.25, 34.5]]]]}, "2026-02-04T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[113.25, 34.5], [113.35, 34.75], [113.25, 35.0], [113.47, 35.53], [114.0, 35.75], [114.25, 35.65], [114.5, 35.75], [115.03, 35.53], [115.18, 35.18], [115.25, 35.15], [115.32, 35.18], [115.47, 35.53], [116.0, 35.75], [116.25, 35.65], [116.5, 35.75], [117.03, 35.53], [117.18, 35.18], [117.25, 35.15], [117.5, 35.25], [117.75, 35.15], [118.0, 35.25], [118.25, 35.15], [118.5, 35.25], [118.75, 35.15], [119.0, 35.25], [119.53, 35.03], [119.75, 34.5], [119.65, 34.25], [119.75, 34.0], [119.53, 33.47], [119.13, 33.3], [119.25, 33.0], [119.03, 32.47], [118.5, 32.25], [118.25, 32.35], [118.0, 32.25], [117.75, 32.35], [117.5, 32.25], [116.97, 32.47], [116.82, 32.82], [116.75, 32.85], [116.5, 32.75], [115.97, 32.97], [115.82, 33.32], [115.75, 33.35], [115.5, 33.25], [115.25, 33.35], [115.0, 33.25], [114.75, 33.35], [114.5, 33.25], [114.25, 33.35], [114.0, 33.25], [113.47, 33.47], [113.25, 34.0], [113.35, 34.25], [113.25, 34.5]]]]}, "2026-02-05T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[113.25, 34.5], [113.35, 34.75], [113.25, 35.0], [113.47, 35.53], [114.0, 35.75], [114.25, 35.65], [114.5, 35.75], [115.03, 35.53], [115.18, 35.18], [115.25, 35.15], [115.32, 35.18], [115.47, 35.53], [116.0, 35.75], [116.25, 35.65], [116.5, 35.75], [117.03, 35.53], [117.18, 35.18], [117.25, 35.15], [117.5, 35.25], [117.75, 35.15], [118.0, 35.25], [118.25, 35.15], [118.5, 35.25], [118.75, 35.15], [119.0, 35.25], [119.53, 35.03], [119.75, 34.5], [119.65, 34.25], [119.75, 34.0], [119.53, 33.47], [119.13, 33.3], [119.25, 33.0], [119.03, 32.47], [118.5, 32.25], [118.25, 32.35], [118.0, 32.25], [117.75, 32.35], [117.5, 32.25], [116.97, 32.47], [116.82, 32.82], [116.75, 32.85], [116.5, 32.75], [115.97, 32.97], [115.82, 33.32], [115.75, 33.35], [115.5, 33.25], [115.25, 33.35], [115.0, 33.25], [114.75, 33.35], [114.5, 33.25], [114.25, 33.35], [114.0, 33.25], [113.47, 33.47], [113.25, 34.0], [113.35, 34.25], [113.25, 34.5]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 6.05709701286446}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 4.868273430370113}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [6.690402853609328, 7.814681028115615, 7.58802901759293]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [7.154013570149743, 8.67002894083663, 8.899049377441429]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [4.341953409675656, 5.313551876428958, 4.949315005005725]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [5.101024024339779, 6.05709701286446, 5.585287186958794]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.4782929959859716, 1.7710073415569723, 1.5933064605802654]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.7395468684275168, 1.946247625702211, 1.7905443606359694]}}