{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:52:04.257732", "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-Jun-11_to_2024-Jun-16_37.5_-9.0"}, "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": 2024060000300}, "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": "June 11 2024"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "June 16 2024"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 6}, "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": "Cold spell"}, "area": {"name": "Area", "description": "The area (in square meters) encompassing all grid points under the influence of an event during its lifetime.", "value": 54771.37305024636}, "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": ["Mozambique", "Tanzania"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["E.Southern-Africa", "S.Eastern-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": -9.0}, "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": 37.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "37.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 37.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 39.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -12.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -8.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2024-06-11T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[36.97, -7.97], [37.5, -7.75], [38.0, -7.96], [38.5, -7.75], [39.03, -7.97], [39.25, -8.5], [39.15, -8.75], [39.25, -9.0], [39.15, -9.25], [39.25, -9.5], [39.15, -9.75], [39.18, -9.82], [39.53, -9.97], [39.68, -10.32], [40.03, -10.47], [40.25, -11.0], [40.03, -11.53], [39.68, -11.68], [39.53, -12.03], [39.18, -12.18], [39.03, -12.53], [38.5, -12.75], [37.97, -12.53], [37.75, -12.0], [37.85, -11.75], [37.75, -11.5], [37.97, -10.97], [38.32, -10.82], [38.35, -10.75], [38.32, -10.68], [37.97, -10.53], [37.75, -10.0], [37.85, -9.75], [37.8, -9.62], [37.5, -9.75], [36.97, -9.53], [36.75, -9.0], [36.85, -8.75], [36.75, -8.5], [36.97, -7.97]]]]}, "2024-06-12T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[36.97, -7.97], [37.5, -7.75], [38.0, -7.96], [38.5, -7.75], [39.03, -7.97], [39.25, -8.5], [39.15, -8.75], [39.18, -8.82], [39.25, -8.85], [39.5, -8.75], [40.03, -8.97], [40.25, -9.5], [40.15, -9.75], [40.25, -10.0], [40.04, -10.5], [40.25, -11.0], [40.03, -11.53], [39.68, -11.68], [39.53, -12.03], [39.18, -12.18], [39.03, -12.53], [38.5, -12.75], [37.97, -12.53], [37.75, -12.0], [37.85, -11.75], [37.75, -11.5], [37.88, -11.2], [37.47, -11.03], [37.25, -10.5], [37.46, -10.0], [37.32, -9.68], [36.97, -9.53], [36.75, -9.0], [36.85, -8.75], [36.75, -8.5], [36.97, -7.97]]]]}, "2024-06-13T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[36.97, -7.97], [37.5, -7.75], [38.0, -7.96], [38.5, -7.75], [39.03, -7.97], [39.25, -8.5], [39.15, -8.75], [39.18, -8.82], [39.25, -8.85], [39.5, -8.75], [40.03, -8.97], [40.25, -9.5], [40.15, -9.75], [40.25, -10.0], [40.04, -10.5], [40.25, -11.0], [40.03, -11.53], [39.68, -11.68], [39.53, -12.03], [39.18, -12.18], [39.03, -12.53], [38.5, -12.75], [37.97, -12.53], [37.75, -12.0], [37.85, -11.75], [37.75, -11.5], [37.88, -11.2], [37.47, -11.03], [37.25, -10.5], [37.46, -10.0], [37.32, -9.68], [36.97, -9.53], [36.75, -9.0], [36.85, -8.75], [36.75, -8.5], [36.97, -7.97]]]]}, "2024-06-14T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[36.97, -7.97], [37.5, -7.75], [38.0, -7.96], [38.5, -7.75], [39.03, -7.97], [39.25, -8.5], [39.15, -8.75], [39.18, -8.82], [39.25, -8.85], [39.5, -8.75], [40.03, -8.97], [40.25, -9.5], [40.15, -9.75], [40.25, -10.0], [40.04, -10.5], [40.25, -11.0], [40.03, -11.53], [39.5, -11.75], [39.25, -11.65], [39.0, -11.75], [38.47, -11.53], [38.32, -11.18], [38.25, -11.15], [38.0, -11.25], [37.47, -11.03], [37.25, -10.5], [37.46, -10.0], [37.32, -9.68], [36.97, -9.53], [36.75, -9.0], [36.85, -8.75], [36.75, -8.5], [36.97, -7.97]]]]}, "2024-06-15T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[36.97, -7.97], [37.5, -7.75], [38.0, -7.96], [38.5, -7.75], [39.03, -7.97], [39.25, -8.5], [39.15, -8.75], [39.18, -8.82], [39.53, -8.97], [39.75, -9.5], [39.53, -10.03], [39.0, -10.25], [38.47, -10.03], [38.32, -9.68], [38.0, -9.54], [37.5, -9.75], [36.97, -9.53], [36.75, -9.0], [36.85, -8.75], [36.75, -8.5], [36.97, -7.97]]]]}, "2024-06-16T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[37.5, -8.25], [38.03, -8.47], [38.25, -9.0], [38.03, -9.53], [37.5, -9.75], [36.97, -9.53], [36.75, -9.0], [36.97, -8.47], [37.5, -8.25]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -2.720057103843885}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -1.7251048691332092}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [22.295120310630523, 22.06357392687761, 22.032356369629667, 21.671423836513668, 22.24717322880963, 22.12322522394004]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [20.602178058953484, 20.332874177321003, 20.147951095753626, 20.310540471817603, 21.227115745673075, 22.12322522394004]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-1.5768025462677902, -1.6725484089371763, -1.6798071118212572, -1.9193525501954278, -1.90139548049126, -1.4709403859384338]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-2.133558935035694, -2.4133764495460355, -2.3290895375631635, -2.720057103843885, -2.546460379468556, -1.4709403859384338]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.6214554995376311, -1.8135677323360762, -1.8528936734416783, -2.1665624548038136, -2.1240407660985654, -1.5843456447624324]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-2.1207526426427203, -2.4553234064555536, -2.4179555962297297, -2.8326029711209046, -2.526122779595163, -1.5843456447624324]}}