{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 17:00:46.334026", "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-Aug-24_to_2024-Aug-27_44.5_6.0"}, "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": 2024080002469}, "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": "August 24 2024"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "August 27 2024"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 4}, "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": 64540.26865854718}, "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": ["Ethiopia"]}, "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": 6.0}, "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": 44.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "44.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 42.5}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 44.5}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 4.5}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 7.5}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[45.03, 5.47], [44.68, 5.32], [44.53, 4.97], [44.18, 4.82], [44.03, 4.47], [43.68, 4.32], [43.53, 3.97], [43.0, 3.75], [42.75, 3.85], [42.5, 3.75], [41.97, 3.97], [41.75, 4.5], [41.85, 4.75], [41.75, 5.0], [41.97, 5.53], [42.32, 5.68], [42.46, 6.0], [42.25, 6.5], [42.35, 6.75], [42.25, 7.0], [42.47, 7.53], [42.82, 7.68], [42.97, 8.03], [43.5, 8.25], [44.0, 8.04], [44.5, 8.25], [45.03, 8.03], [45.25, 7.5], [45.15, 7.25], [45.25, 7.0], [45.15, 6.75], [45.25, 6.5], [45.15, 6.25], [45.25, 6.0], [45.03, 5.47]]]]}}, "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": {"2024-08-24T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[41.75, 5.0], [41.97, 5.53], [42.32, 5.68], [42.46, 6.0], [42.25, 6.5], [42.47, 7.03], [42.82, 7.18], [42.97, 7.53], [43.5, 7.75], [43.75, 7.65], [43.82, 7.68], [43.97, 8.03], [44.5, 8.25], [45.03, 8.03], [45.25, 7.5], [45.15, 7.25], [45.25, 7.0], [45.15, 6.75], [45.25, 6.5], [45.15, 6.25], [45.25, 6.0], [45.03, 5.47], [44.68, 5.32], [44.53, 4.97], [44.18, 4.82], [44.03, 4.47], [43.68, 4.32], [43.53, 3.97], [43.0, 3.75], [42.75, 3.85], [42.5, 3.75], [41.97, 3.97], [41.75, 4.5], [41.85, 4.75], [41.75, 5.0]]]]}, "2024-08-25T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[41.75, 5.0], [41.97, 5.53], [42.32, 5.68], [42.46, 6.0], [42.25, 6.5], [42.35, 6.75], [42.25, 7.0], [42.47, 7.53], [42.82, 7.68], [42.97, 8.03], [43.5, 8.25], [44.0, 8.04], [44.5, 8.25], [45.03, 8.03], [45.25, 7.5], [45.15, 7.25], [45.25, 7.0], [45.15, 6.75], [45.25, 6.5], [45.15, 6.25], [45.25, 6.0], [45.03, 5.47], [44.68, 5.32], [44.53, 4.97], [44.18, 4.82], [44.03, 4.47], [43.68, 4.32], [43.53, 3.97], [43.0, 3.75], [42.75, 3.85], [42.5, 3.75], [41.97, 3.97], [41.75, 4.5], [41.85, 4.75], [41.75, 5.0]]]]}, "2024-08-26T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[41.75, 5.0], [41.97, 5.53], [42.32, 5.68], [42.46, 6.0], [42.25, 6.5], [42.35, 6.75], [42.25, 7.0], [42.47, 7.53], [42.82, 7.68], [42.97, 8.03], [43.5, 8.25], [44.0, 8.04], [44.5, 8.25], [45.03, 8.03], [45.25, 7.5], [45.15, 7.25], [45.25, 7.0], [45.15, 6.75], [45.25, 6.5], [45.15, 6.25], [45.25, 6.0], [45.03, 5.47], [44.68, 5.32], [44.53, 4.97], [44.18, 4.82], [44.03, 4.47], [43.68, 4.32], [43.53, 3.97], [43.0, 3.75], [42.75, 3.85], [42.5, 3.75], [41.97, 3.97], [41.75, 4.5], [41.85, 4.75], [41.75, 5.0]]]]}, "2024-08-27T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[44.5, 6.75], [45.03, 6.53], [45.25, 6.0], [45.03, 5.47], [44.68, 5.32], [44.53, 4.97], [44.0, 4.75], [43.47, 4.97], [43.25, 5.5], [43.47, 6.03], [43.82, 6.18], [43.97, 6.53], [44.5, 6.75]]], [[[43.5, 8.25], [44.03, 8.03], [44.25, 7.5], [44.03, 6.97], [43.68, 6.82], [43.53, 6.47], [43.0, 6.25], [42.47, 6.47], [42.25, 7.0], [42.47, 7.53], [42.82, 7.68], [42.97, 8.03], [43.5, 8.25]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 2.31187322422619}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 1.4974568838399198}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [28.689066631834578, 28.384629972562493, 29.11646167490221, 28.125092321013142]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [30.352019704524878, 30.340027908951527, 31.095511030073908, 29.665038735893575]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [1.3441887362391245, 1.2281944877088253, 1.9606975569092728, 1.2070946310178385]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [1.6265496923068667, 1.5743333647674262, 2.31187322422619, 1.397386752126124]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.7664956372680394, 1.521870544750805, 2.349751508930976, 1.40631605006025]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [2.233289164492033, 1.8056338574602209, 2.593342704320687, 1.434004990658141]}}