{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 16:58:28.847498", "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": "2024-Apr-04_to_2024-Apr-11_40.0_20.0"}, "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": 2024040001024}, "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": "April 04 2024"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "April 11 2024"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 8}, "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": 52297.29876159519}, "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": ["Saudi Arabia"]}, "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": ["Red Sea"]}, "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": 20.0}, "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": 40.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "40.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 38.5}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 40.5}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 18.5}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 21.5}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[38.32, 20.18], [38.35, 20.25], [38.32, 20.32], [37.97, 20.47], [37.75, 21.0], [37.97, 21.53], [38.32, 21.68], [38.47, 22.03], [39.0, 22.25], [39.53, 22.03], [39.75, 21.5], [39.65, 21.25], [39.68, 21.18], [39.75, 21.15], [40.0, 21.25], [40.25, 21.15], [40.5, 21.25], [41.03, 21.03], [41.25, 20.5], [41.15, 20.25], [41.25, 20.0], [41.15, 19.75], [41.25, 19.5], [41.15, 19.25], [41.25, 19.0], [41.03, 18.47], [40.5, 18.25], [40.25, 18.35], [40.0, 18.25], [39.47, 18.47], [39.3, 18.87], [39.24, 18.85], [39.18, 18.82], [39.15, 18.75], [39.25, 18.5], [39.03, 17.97], [38.5, 17.75], [37.97, 17.97], [37.75, 18.5], [37.85, 18.75], [37.75, 19.0], [37.85, 19.25], [37.75, 19.5], [37.97, 20.03], [38.32, 20.18]]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Sahara", "Arabian-Peninsula"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2024-04-04T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[37.97, 20.47], [37.75, 21.0], [37.97, 21.53], [38.32, 21.68], [38.47, 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"mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 1.606812551123026}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [27.751162510681695, 27.976213842067978, 28.841809446753928, 29.351411686582196, 30.127819329912256, 29.71060811369955, 29.43471764255463, 29.37516732832836]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [28.103337111348026, 28.269176432639426, 32.10641520630594, 32.284591644488785, 32.355767318862775, 31.31794690240747, 29.902579075439576, 29.37516732832836]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [1.6399847879428553, 1.6974962247980443, 1.6277601310762577, 1.492308385036814, 1.6469033263387525, 1.604863259435969, 1.5702452849546376, 1.507548810370963]}, "anom_evo_maxamp": {"name": 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