{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-05-20 10:52:02.823326", "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-Jan-12_to_2026-Jan-16_22.5_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": 2026010001724}, "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": "January 12 2026"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "January 16 2026"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 5}, "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": 67846.8906654131}, "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": ["Central African Republic", "Congo DRC"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Central-Africa"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["Africa"]}, "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": 22.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "22.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 19.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 23.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 1.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 5.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2026-01-12T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[21.47, 4.53], [21.82, 4.68], [21.97, 5.03], [22.5, 5.25], [22.8, 5.13], [22.97, 5.53], [23.5, 5.75], [24.03, 5.53], [24.25, 5.0], [24.04, 4.5], [24.25, 4.0], [24.03, 3.47], [23.5, 3.25], [23.25, 3.35], [23.18, 3.32], [23.03, 2.97], [22.5, 2.75], [22.2, 2.88], [22.03, 2.47], [21.5, 2.25], [21.25, 2.35], [21.0, 2.25], [20.47, 2.47], [20.25, 3.0], [20.47, 3.53], [20.82, 3.68], [20.97, 4.03], [21.32, 4.18], [21.47, 4.53]]], [[[19.47, 3.97], [19.25, 4.5], [19.47, 5.03], [20.0, 5.25], [20.53, 5.03], [20.75, 4.5], [20.53, 3.97], [20.0, 3.75], [19.47, 3.97]]]]}, "2026-01-13T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[19.47, 3.97], [19.25, 4.5], [19.47, 5.03], [20.0, 5.25], [20.25, 5.15], [20.5, 5.25], [21.03, 5.03], [21.18, 4.68], [21.25, 4.65], [21.32, 4.68], [21.35, 4.75], [21.25, 5.0], [21.47, 5.53], [22.0, 5.75], [22.25, 5.65], [22.5, 5.75], [23.0, 5.54], [23.5, 5.75], [24.03, 5.53], [24.25, 5.0], [24.04, 4.5], [24.25, 4.0], [24.03, 3.47], [23.5, 3.25], [23.25, 3.35], [23.18, 3.32], [23.15, 3.25], [23.25, 3.0], [23.15, 2.75], [23.25, 2.5], [23.03, 1.97], [22.5, 1.75], [22.2, 1.87], [22.03, 1.47], [21.5, 1.25], [20.97, 1.47], [20.82, 1.82], [20.47, 1.97], [20.25, 2.5], [20.35, 2.75], [20.25, 3.0], [20.46, 3.5], [20.32, 3.82], [20.25, 3.85], [20.0, 3.75], [19.47, 3.97]]]]}, "2026-01-14T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[19.47, 3.97], [19.25, 4.5], [19.47, 5.03], [20.0, 5.25], [20.25, 5.15], [20.5, 5.25], [21.03, 5.03], [21.18, 4.68], [21.25, 4.65], [21.32, 4.68], [21.35, 4.75], [21.25, 5.0], [21.47, 5.53], [22.0, 5.75], [22.25, 5.65], [22.5, 5.75], [23.0, 5.54], [23.5, 5.75], [24.03, 5.53], [24.25, 5.0], [24.04, 4.5], [24.25, 4.0], [24.03, 3.47], [23.5, 3.25], [23.25, 3.35], [23.18, 3.32], [23.15, 3.25], [23.25, 3.0], [23.15, 2.75], [23.25, 2.5], [23.03, 1.97], [22.5, 1.75], [22.2, 1.87], [22.03, 1.47], [21.5, 1.25], [20.97, 1.47], [20.82, 1.82], [20.47, 1.97], [20.25, 2.5], [20.35, 2.75], [20.25, 3.0], [20.46, 3.5], [20.32, 3.82], [20.25, 3.85], [20.0, 3.75], [19.47, 3.97]]]]}, "2026-01-15T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[19.75, 4.5], [19.97, 5.03], [20.5, 5.25], [21.03, 5.03], [21.18, 4.68], [21.25, 4.65], [21.32, 4.68], [21.35, 4.75], [21.25, 5.0], [21.47, 5.53], [22.0, 5.75], [22.25, 5.65], [22.5, 5.75], [23.0, 5.54], [23.5, 5.75], [24.03, 5.53], [24.25, 5.0], [24.04, 4.5], [24.25, 4.0], [24.03, 3.47], [23.5, 3.25], [23.25, 3.35], [23.18, 3.32], [23.15, 3.25], [23.25, 3.0], [23.15, 2.75], [23.25, 2.5], [23.03, 1.97], [22.5, 1.75], [22.2, 1.87], [22.03, 1.47], [21.5, 1.25], [20.97, 1.47], [20.82, 1.82], [20.47, 1.97], [20.25, 2.5], [20.35, 2.75], [20.25, 3.0], [20.46, 3.5], [20.32, 3.82], [19.97, 3.97], [19.75, 4.5]]]]}, "2026-01-16T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[22.5, 5.25], [23.03, 5.03], [23.25, 4.5], [23.03, 3.97], [22.5, 3.75], [21.97, 3.97], [21.75, 4.5], [21.97, 5.03], [22.5, 5.25]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 3.434255040108269}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 2.4131371394643164}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [27.921877543131586, 28.117205671830618, 28.261168531938097, 28.307910446893572, 27.936704254150413]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [28.91693776448568, 28.848125712076865, 29.429385121663415, 29.089532470703148, 27.936704254150413]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [2.3032977695583385, 2.3572779119255567, 2.4517648775729644, 2.487882878288904, 2.3209630906702046]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [2.6873223690262193, 2.7788077839431935, 3.264129949414553, 3.434255040108269, 2.3209630906702046]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.443732617146845, 1.4941035338012925, 1.5250169767350947, 1.5696928780357946, 1.4697750633301725]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.5796040318483615, 1.7064160797516197, 1.8202966561733398, 2.0736801406148895, 1.4697750633301725]}}