{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 17:05:35.260308", "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": "2025-May-29_to_2025-Jun-04_32.5_5.5"}, "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": 2025050002673}, "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": "May 29 2025"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "June 04 2025"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 7}, "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": 52254.71347998795}, "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": ["South Sudan"]}, "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": 5.5}, "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": 32.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "32.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 28.5}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 33.0}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 5.0}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 7.0}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[31.75, 6.15], [31.82, 6.18], [31.85, 6.25], [31.75, 6.5], [31.97, 7.03], [32.5, 7.25], [33.03, 7.03], [33.25, 6.5], [33.15, 6.25], [33.18, 6.18], [33.53, 6.03], [33.75, 5.5], [33.53, 4.97], [33.18, 4.82], [33.03, 4.47], [32.5, 4.25], [32.25, 4.35], [32.0, 4.25], [31.47, 4.47], [31.32, 4.82], [30.97, 4.97], [30.82, 5.32], [30.47, 5.47], [30.32, 5.82], [30.25, 5.85], [30.18, 5.82], [30.03, 5.47], [29.5, 5.25], [29.25, 5.35], [29.0, 5.25], [28.47, 5.47], [28.25, 6.0], [28.35, 6.25], [28.32, 6.32], [27.97, 6.47], [27.75, 7.0], [27.97, 7.53], [28.5, 7.75], [29.0, 7.54], [29.5, 7.75], [30.03, 7.53], [30.18, 7.18], [30.25, 7.15], [30.5, 7.25], [31.03, 7.03], [31.18, 6.68], [31.53, 6.53], [31.68, 6.18], [31.75, 6.15]]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["N.Eastern-Africa"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2025-05-29T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[31.25, 5.5], [31.47, 6.03], [32.0, 6.25], [32.25, 6.15], [32.5, 6.25], [33.03, 6.03], [33.25, 5.5], [33.15, 5.25], [33.25, 5.0], [33.03, 4.47], [32.5, 4.25], [32.25, 4.35], [32.0, 4.25], [31.47, 4.47], [31.25, 5.0], [31.35, 5.25], [31.25, 5.5]]]]}, "2025-05-30T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[31.25, 5.5], [31.47, 6.03], [32.0, 6.25], [32.25, 6.15], [32.5, 6.25], [33.03, 6.03], [33.25, 5.5], [33.15, 5.25], [33.25, 5.0], [33.03, 4.47], [32.5, 4.25], [32.25, 4.35], [32.0, 4.25], [31.47, 4.47], [31.25, 5.0], [31.35, 5.25], [31.25, 5.5]]]]}, "2025-05-31T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[30.97, 4.97], [30.75, 5.5], [30.97, 6.03], [31.5, 6.25], [31.75, 6.15], [32.0, 6.25], [32.25, 6.15], [32.5, 6.25], [33.03, 6.03], [33.25, 5.5], [33.15, 5.25], [33.25, 5.0], [33.03, 4.47], [32.5, 4.25], [32.25, 4.35], [32.0, 4.25], [31.47, 4.47], [31.32, 4.82], [30.97, 4.97]]]]}, "2025-06-01T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[30.97, 4.97], [30.75, 5.5], [30.97, 6.03], [31.5, 6.25], [31.75, 6.15], [32.0, 6.25], [32.25, 6.15], [32.5, 6.25], [33.03, 6.03], [33.25, 5.5], [33.15, 5.25], [33.25, 5.0], [33.03, 4.47], [32.5, 4.25], [32.25, 4.35], [32.0, 4.25], [31.47, 4.47], [31.32, 4.82], [30.97, 4.97]]]]}, "2025-06-02T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[27.97, 6.47], [27.75, 7.0], [27.97, 7.53], [28.5, 7.75], [29.0, 7.54], [29.5, 7.75], [30.03, 7.53], [30.18, 7.18], [30.25, 7.15], [30.5, 7.25], [31.03, 7.03], [31.18, 6.68], [31.53, 6.53], [31.68, 6.18], [31.75, 6.15], [31.82, 6.18], [31.85, 6.25], [31.75, 6.5], [31.97, 7.03], [32.5, 7.25], [33.03, 7.03], [33.25, 6.5], [33.15, 6.25], [33.18, 6.18], [33.53, 6.03], [33.75, 5.5], [33.53, 4.97], [33.18, 4.82], [33.03, 4.47], [32.5, 4.25], [32.25, 4.35], [32.0, 4.25], [31.47, 4.47], [31.32, 4.82], [30.97, 4.97], [30.82, 5.32], [30.47, 5.47], [30.32, 5.82], [30.25, 5.85], [30.18, 5.82], [30.03, 5.47], [29.5, 5.25], [29.25, 5.35], [29.0, 5.25], [28.47, 5.47], [28.25, 6.0], [28.35, 6.25], [28.32, 6.32], [27.97, 6.47]]]]}, "2025-06-03T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[27.97, 6.47], [27.75, 7.0], [27.97, 7.53], [28.5, 7.75], [29.0, 7.54], [29.5, 7.75], [30.03, 7.53], [30.18, 7.18], [30.25, 7.15], [30.5, 7.25], [31.03, 7.03], [31.18, 6.68], [31.53, 6.53], [31.68, 6.18], [31.75, 6.15], [31.82, 6.18], [31.85, 6.25], [31.75, 6.5], [31.97, 7.03], [32.5, 7.25], [33.03, 7.03], [33.25, 6.5], [33.15, 6.25], [33.18, 6.18], [33.53, 6.03], [33.75, 5.5], [33.53, 4.97], [33.18, 4.82], [33.03, 4.47], [32.5, 4.25], [31.97, 4.47], [31.82, 4.82], [31.75, 4.85], [31.5, 4.75], [30.97, 4.97], [30.82, 5.32], [30.47, 5.47], [30.32, 5.82], [30.25, 5.85], [30.18, 5.82], [30.03, 5.47], [29.5, 5.25], [29.25, 5.35], [29.0, 5.25], [28.47, 5.47], [28.25, 6.0], [28.35, 6.25], [28.32, 6.32], [27.97, 6.47]]]]}, "2025-06-04T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[27.97, 6.47], [27.75, 7.0], [27.97, 7.53], [28.5, 7.75], [29.0, 7.54], [29.5, 7.75], [30.03, 7.53], [30.18, 7.18], [30.25, 7.15], [30.5, 7.25], [31.03, 7.03], [31.18, 6.68], [31.53, 6.53], [31.68, 6.18], [31.75, 6.15], [31.82, 6.18], [31.85, 6.25], [31.75, 6.5], [31.97, 7.03], [32.5, 7.25], [33.03, 7.03], [33.25, 6.5], [33.15, 6.25], [33.18, 6.18], [33.53, 6.03], [33.75, 5.5], [33.53, 4.97], [33.18, 4.82], [33.03, 4.47], [32.5, 4.25], [31.97, 4.47], [31.82, 4.82], [31.75, 4.85], [31.5, 4.75], [30.97, 4.97], [30.82, 5.32], [30.47, 5.47], [30.32, 5.82], [30.25, 5.85], [30.18, 5.82], [30.03, 5.47], [29.5, 5.25], [29.25, 5.35], [29.0, 5.25], [28.47, 5.47], [28.25, 6.0], [28.35, 6.25], [28.32, 6.32], [27.97, 6.47]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 3.831142509312656}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 2.396378364037769}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [29.925434366861964, 30.090404764811183, 29.923034413655614, 29.64783426920576, 29.560498884612457, 29.594787851969443, 29.460125223795615]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [30.44710184733077, 30.97161000569662, 31.09145889282229, 30.530923461914085, 31.637139892578148, 31.49863713582357, 31.61054128011068]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [2.290021166302324, 2.465511005100822, 2.440078339064655, 2.2137207415520264, 2.3879175247370097, 2.4789030266130183, 2.375573747218567]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [2.8099452852105173, 3.0150191271251856, 3.2076338755988445, 2.712435010551303, 3.831142509312656, 3.709451692781556, 3.732122547678557]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.5559228494147086, 1.6848648060483433, 1.6457397065767592, 1.520143057785403, 1.8023085252264737, 1.8977074932196378, 1.7189558150964779]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.9297723361503207, 1.8098465556604313, 1.8762360539078589, 1.6308761409644972, 2.499269083305054, 2.47411179554239, 2.117645297347744]}}