{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 16:18:57.526025", "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": "2022-Mar-08_to_2022-Mar-11_15.0_-14.0"}, "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": 2022030001697}, "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": "March 08 2022"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "March 11 2022"}, "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": 59869.80647313471}, "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": ["Angola"]}, "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": -14.0}, "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": 15.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "15.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 13.5}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 17.0}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -15.5}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -13.5}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[14.32, -13.32], [14.47, -12.97], [15.0, -12.75], [15.25, -12.85], [15.5, -12.75], [16.03, -12.97], [16.25, -13.5], [16.15, -13.75], [16.18, -13.82], [16.25, -13.85], [16.5, -13.75], [16.75, -13.85], [17.0, -13.75], [17.53, -13.97], [17.75, -14.5], [17.53, -15.03], [17.18, -15.18], [17.03, -15.53], [16.68, -15.68], [16.53, -16.03], [16.0, -16.25], [15.47, -16.03], [15.32, -15.68], [15.0, -15.54], [14.5, -15.75], [14.0, -15.54], [13.5, -15.75], [12.97, -15.53], [12.75, -15.0], [12.97, -14.47], [13.32, -14.32], [13.35, -14.25], [13.32, -14.18], [12.97, -14.03], [12.75, -13.5], [12.97, -12.97], [13.5, -12.75], [14.03, -12.97], [14.18, -13.32], [14.25, -13.35], [14.32, -13.32]]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["W.Southern-Africa"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2022-03-08T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[12.97, -14.03], [12.75, -13.5], [12.97, -12.97], [13.5, -12.75], [14.03, -12.97], [14.18, -13.32], [14.25, -13.35], [14.32, -13.32], [14.47, -12.97], [15.0, -12.75], [15.25, -12.85], [15.5, -12.75], [16.03, -12.97], [16.25, -13.5], [16.15, -13.75], [16.18, -13.82], [16.25, -13.85], [16.5, -13.75], [16.75, -13.85], [17.0, -13.75], [17.53, -13.97], [17.75, -14.5], [17.53, -15.03], [17.18, -15.18], [17.03, -15.53], [16.68, -15.68], [16.53, -16.03], [16.0, -16.25], [15.47, -16.03], [15.32, -15.68], [15.0, -15.54], [14.5, -15.75], [13.97, -15.53], [13.82, -15.18], [13.47, -15.03], [13.25, -14.5], [13.35, -14.25], [13.32, -14.18], [12.97, -14.03]]]]}, "2022-03-09T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[13.35, -14.25], [13.32, -14.18], [12.97, -14.03], [12.75, -13.5], [12.97, -12.97], [13.5, -12.75], [14.03, -12.97], [14.18, -13.32], [14.25, -13.35], [14.32, -13.32], [14.47, -12.97], [15.0, -12.75], [15.25, -12.85], [15.5, -12.75], [16.03, -12.97], [16.25, -13.5], [16.15, -13.75], [16.18, -13.82], [16.25, -13.85], [16.5, -13.75], [16.75, -13.85], [17.0, -13.75], [17.53, -13.97], [17.75, -14.5], [17.53, -15.03], [17.18, -15.18], [17.03, -15.53], [16.68, -15.68], [16.53, -16.03], [16.0, -16.25], [15.47, -16.03], [15.32, -15.68], [15.0, -15.54], [14.5, -15.75], [14.0, -15.54], [13.5, -15.75], [12.97, -15.53], [12.75, -15.0], [12.97, -14.47], [13.32, -14.32], [13.35, -14.25]]]]}, "2022-03-10T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[13.35, -14.25], [13.32, -14.18], [12.97, -14.03], [12.75, -13.5], [12.97, -12.97], [13.5, -12.75], [14.03, -12.97], [14.18, -13.32], [14.25, -13.35], [14.32, -13.32], [14.47, -12.97], [15.0, -12.75], [15.25, -12.85], [15.5, -12.75], [16.03, -12.97], [16.25, -13.5], [16.15, -13.75], [16.18, -13.82], [16.25, -13.85], [16.5, -13.75], [16.75, -13.85], [17.0, -13.75], [17.53, -13.97], [17.75, -14.5], [17.53, -15.03], [17.18, -15.18], [17.03, -15.53], [16.68, -15.68], [16.53, -16.03], [16.0, -16.25], [15.47, -16.03], [15.32, -15.68], [15.0, -15.54], [14.5, -15.75], [14.0, -15.54], [13.5, -15.75], [12.97, -15.53], [12.75, -15.0], [12.97, -14.47], [13.32, -14.32], [13.35, -14.25]]]]}, "2022-03-11T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[13.25, -14.0], [13.47, -13.47], [14.0, -13.25], [14.53, -13.47], [14.75, -14.0], [14.53, -14.53], [14.13, -14.7], [14.25, -15.0], [14.03, -15.53], [13.5, -15.75], [12.97, -15.53], [12.75, -15.0], [12.97, -14.47], [13.38, -14.3], [13.25, -14.0]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 3.559552388852808}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 2.077669513625553}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [22.676050397163465, 22.755066320819196, 23.177121611889447, 22.05320801381322]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [26.544143236621835, 27.162432035370273, 27.6685612003468, 24.548407161985267]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [1.7554354454781471, 2.019975500573099, 2.4766549013349506, 1.725979414456475]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [2.339546316703604, 2.7606930446673914, 3.559552388852808, 1.9335575222858097]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.6236380122310805, 1.8735036561235876, 2.234849561715266, 1.4708754328212672]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [2.3788055449359256, 2.6836769776715026, 2.745814667625499, 1.5912714288709686]}}