{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:53:22.289167", "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": "2013-May-22_to_2013-May-30_37.0_-20.0"}, "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": 2013050000880}, "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 22 2013"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "May 30 2013"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 9}, "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": 311578.24468351493}, "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"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["E.Southern-Africa", "Madagascar"]}, "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": ["Mozambique Channel"]}, "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": -20.0}, "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": 37.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "37.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 36.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 43.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -23.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -16.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2013-05-22T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[35.75, -21.5], [35.97, -20.97], [36.32, -20.82], [36.47, -20.47], [37.0, -20.25], [37.25, -20.35], [37.5, -20.25], [37.75, -20.35], [38.0, -20.25], [38.53, -20.47], [38.75, -21.0], [38.53, -21.53], [38.18, -21.68], [38.15, -21.75], [38.25, -22.0], [38.03, -22.53], [37.5, -22.75], [37.25, -22.65], [37.0, -22.75], [36.47, -22.53], [36.32, -22.18], [35.97, -22.03], [35.75, -21.5]]]]}, "2013-05-23T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[35.85, -20.75], [35.75, -20.5], [35.85, -20.25], [35.75, -20.0], [35.97, -19.47], [36.32, -19.32], [36.47, -18.97], [37.0, -18.75], [37.5, -18.96], [38.0, -18.75], [38.53, -18.97], [38.75, -19.5], [38.65, -19.75], [38.75, -20.0], [38.65, -20.25], [38.75, -20.5], [38.65, -20.75], [38.75, -21.0], [38.53, -21.53], [38.18, -21.68], [38.15, -21.75], [38.25, -22.0], [38.03, -22.53], [37.5, -22.75], [37.25, -22.65], [37.0, -22.75], [36.47, -22.53], [36.32, -22.18], [35.97, -22.03], [35.75, -21.5], [35.85, -21.25], [35.75, -21.0], [35.85, -20.75]]]]}, "2013-05-24T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[35.85, -20.75], [35.75, -20.5], [35.85, -20.25], [35.75, -20.0], [35.85, -19.75], [35.75, -19.5], [35.97, -18.97], [36.32, -18.82], [36.47, -18.47], [36.82, -18.32], [36.97, -17.97], [37.5, -17.75], [37.75, -17.85], [38.0, -17.75], [38.53, -17.97], [38.75, -18.5], [38.65, -18.75], [38.75, -19.0], [38.65, -19.25], [38.75, -19.5], [38.65, -19.75], [38.75, -20.0], [38.65, -20.25], [38.75, -20.5], [38.65, -20.75], [38.75, -21.0], [38.53, -21.53], [38.18, -21.68], [38.15, -21.75], [38.25, -22.0], [38.03, -22.53], [37.5, -22.75], [37.25, -22.65], [37.0, -22.75], [36.47, -22.53], [36.32, -22.18], [35.97, -22.03], [35.75, -21.5], [35.85, -21.25], [35.75, -21.0], [35.85, -20.75]]]]}, "2013-05-25T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[35.85, -20.75], [35.75, -20.5], [35.85, -20.25], [35.75, -20.0], [35.85, -19.75], [35.75, -19.5], [35.85, -19.25], [35.75, -19.0], [35.85, -18.75], [35.75, -18.5], [35.97, -17.97], [36.5, -17.75], [36.8, -17.87], [36.85, -17.75], [36.75, -17.5], [36.97, -16.97], [37.32, -16.82], [37.47, -16.47], [38.0, -16.25], [38.53, -16.47], [38.75, -17.0], [38.65, -17.25], [38.75, -17.5], [38.65, -17.75], [38.75, -18.0], [38.65, -18.25], [38.75, -18.5], [38.65, -18.75], [38.75, -19.0], [38.65, -19.25], [38.75, -19.5], [38.65, -19.75], [38.75, -20.0], [38.65, -20.25], [38.75, -20.5], [38.53, -21.03], [38.18, -21.18], [38.03, -21.53], [37.5, -21.75], [37.25, -21.65], [37.18, -21.68], [37.03, -22.03], [36.5, -22.25], [35.97, -22.03], [35.75, -21.5], [35.85, -21.25], [35.75, -21.0], [35.85, -20.75]]]]}, "2013-05-26T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[35.85, -19.75], [35.75, -19.5], [35.85, -19.25], [35.75, -19.0], [35.85, -18.75], [35.75, -18.5], [35.97, -17.97], [36.5, -17.75], [36.8, -17.87], [36.85, -17.75], [36.75, -17.5], [36.97, -16.97], [37.32, -16.82], [37.47, -16.47], [38.0, -16.25], [38.53, -16.47], [38.75, -17.0], [38.65, -17.25], [38.75, -17.5], [38.65, -17.75], [38.75, -18.0], [38.65, -18.25], [38.7, -18.37], [39.0, -18.25], [39.53, -18.47], [39.68, -18.82], [40.03, -18.97], [40.25, -19.5], [40.15, -19.75], [40.25, -20.0], [40.03, -20.53], [39.63, -20.7], [39.7, -20.87], [40.0, -20.75], [40.53, -20.97], [40.75, -21.5], [40.53, -22.03], [40.0, -22.25], [39.47, -22.03], [39.3, -21.62], [39.0, -21.75], [38.47, -21.53], [38.3, -21.12], [38.0, -21.25], [37.75, -21.15], [37.68, -21.18], [37.53, -21.53], [37.0, -21.75], [36.47, -21.53], [36.32, -21.18], [35.97, -21.03], [35.75, -20.5], [35.85, -20.25], [35.75, -20.0], [35.85, -19.75]]]]}, "2013-05-27T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[35.85, -19.75], [35.75, -19.5], [35.85, -19.25], [35.75, -19.0], [35.85, -18.75], [35.75, -18.5], [35.97, -17.97], [36.5, -17.75], [36.8, -17.87], [36.85, -17.75], [36.75, -17.5], [36.97, -16.97], [37.32, -16.82], [37.47, -16.47], [38.0, -16.25], [38.53, -16.47], [38.75, -17.0], [38.65, -17.25], [38.75, -17.5], [38.65, -17.75], [38.7, -17.87], [39.0, -17.75], [39.25, -17.85], [39.32, -17.82], [39.47, -17.47], [40.0, -17.25], [40.25, -17.35], [40.32, -17.32], [40.47, -16.97], [40.82, -16.82], [40.97, -16.47], [41.5, -16.25], [41.75, -16.35], [41.82, -16.32], [41.97, -15.97], [42.5, -15.75], [42.75, -15.85], [43.0, -15.75], [43.25, -15.85], [43.5, -15.75], [44.03, -15.97], [44.25, -16.5], [44.03, -17.03], [43.68, -17.18], [43.65, -17.25], [43.75, -17.5], [43.65, -17.75], [43.75, -18.0], [43.65, -18.25], [43.75, -18.5], [43.53, -19.03], [43.18, -19.18], [43.03, -19.53], [42.5, -19.75], [42.25, -19.65], [42.18, -19.68], [42.15, -19.75], [42.25, -20.0], [42.03, -20.53], [41.68, -20.68], [41.65, -20.75], [41.75, -21.0], [41.65, -21.25], [41.75, -21.5], [41.53, -22.03], [41.18, -22.18], [41.15, -22.25], [41.25, -22.5], [41.03, -23.03], [40.68, -23.18], [40.53, -23.53], [40.0, -23.75], [39.47, -23.53], [39.32, -23.18], [38.97, -23.03], [38.75, -22.5], [38.85, -22.25], [38.82, -22.18], [38.47, -22.03], [38.32, -21.68], [37.97, -21.53], [37.82, -21.18], [37.75, -21.15], [37.5, -21.25], [37.25, -21.15], [37.0, -21.25], [36.75, -21.15], [36.5, -21.25], [35.97, -21.03], [35.75, -20.5], [35.85, -20.25], [35.75, -20.0], [35.85, -19.75]]]]}, "2013-05-28T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[37.85, -20.25], [37.75, -20.0], [37.85, -19.75], [37.75, -19.5], [37.97, -18.97], [38.32, -18.82], [38.35, -18.75], [38.25, -18.5], [38.47, -17.97], [39.0, -17.75], [39.25, -17.85], [39.32, -17.82], [39.47, -17.47], [40.0, -17.25], [40.25, -17.35], [40.32, -17.32], [40.47, -16.97], [40.82, -16.82], [40.97, -16.47], [41.5, -16.25], [41.75, -16.35], [41.82, -16.32], [41.97, -15.97], [42.5, -15.75], [42.75, -15.85], [43.0, -15.75], [43.25, -15.85], [43.5, -15.75], [44.03, -15.97], [44.25, -16.5], [44.03, -17.03], [43.68, -17.18], [43.65, -17.25], [43.75, -17.5], [43.65, -17.75], [43.75, -18.0], [43.65, -18.25], [43.75, -18.5], [43.53, -19.03], [43.18, -19.18], [43.03, -19.53], [42.5, -19.75], [42.25, -19.65], [42.18, -19.68], [42.15, -19.75], [42.25, -20.0], [42.03, -20.53], [41.68, -20.68], [41.65, -20.75], [41.75, -21.0], [41.65, -21.25], [41.75, -21.5], [41.53, -22.03], [41.18, -22.18], [41.15, -22.25], [41.25, -22.5], [41.03, -23.03], [40.68, -23.18], [40.53, -23.53], [40.0, -23.75], [39.47, -23.53], [39.32, -23.18], [38.97, -23.03], [38.75, -22.5], [38.85, -22.25], [38.82, -22.18], [38.47, -22.03], [38.32, -21.68], [37.97, -21.53], [37.75, -21.0], [37.85, -20.75], [37.75, -20.5], [37.85, -20.25]]]]}, "2013-05-29T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[37.85, -20.25], [37.75, -20.0], [37.85, -19.75], [37.75, -19.5], [37.97, -18.97], [38.32, -18.82], [38.35, -18.75], [38.25, -18.5], [38.47, -17.97], [39.0, -17.75], [39.25, -17.85], [39.32, -17.82], [39.47, -17.47], [40.0, -17.25], [40.25, -17.35], [40.32, -17.32], [40.47, -16.97], [40.82, -16.82], [40.97, -16.47], [41.5, -16.25], [41.75, -16.35], [41.82, -16.32], [41.97, -15.97], [42.5, -15.75], [42.75, -15.85], [43.0, -15.75], [43.25, -15.85], [43.5, -15.75], [44.03, -15.97], [44.25, -16.5], [44.03, -17.03], [43.68, -17.18], [43.65, -17.25], [43.75, -17.5], [43.65, -17.75], [43.75, -18.0], [43.65, -18.25], [43.75, -18.5], [43.53, -19.03], [43.18, -19.18], [43.03, -19.53], [42.5, -19.75], [42.25, -19.65], [42.18, -19.68], [42.15, -19.75], [42.25, -20.0], [42.03, -20.53], [41.68, -20.68], [41.65, -20.75], [41.75, -21.0], [41.65, -21.25], [41.75, -21.5], [41.53, -22.03], [41.18, -22.18], [41.15, -22.25], [41.25, -22.5], [41.03, -23.03], [40.68, -23.18], [40.53, -23.53], [40.0, -23.75], [39.47, -23.53], [39.32, -23.18], [38.97, -23.03], [38.75, -22.5], [38.85, -22.25], [38.82, -22.18], [38.47, -22.03], [38.32, -21.68], [37.97, -21.53], [37.75, -21.0], [37.85, -20.75], [37.75, -20.5], [37.85, -20.25]]]]}, "2013-05-30T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[38.47, -19.03], [38.25, -18.5], [38.47, -17.97], [39.0, -17.75], [39.53, -17.97], [39.75, -18.5], [39.53, -19.03], [39.0, -19.25], [38.47, -19.03]]], [[[42.75, -15.85], [43.0, -15.75], [43.53, -15.97], [43.75, -16.5], [43.53, -17.03], [43.0, -17.25], [42.75, -17.15], [42.5, -17.25], [42.2, -17.12], [42.03, -17.53], [41.5, -17.75], [40.97, -17.53], [40.75, -17.0], [40.97, -16.47], [41.5, -16.25], [41.8, -16.37], [41.97, -15.97], [42.5, -15.75], [42.75, -15.85]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -2.240975597671479}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -1.365660308504859}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [22.805457801436205, 23.086772188886584, 22.94689658235785, 22.955261876458735, 23.227497470122614, 23.52641771089901, 23.416397194956232, 23.424035773056517, 24.57800667892434]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [22.276572558410578, 22.687227062069155, 22.3727912010487, 20.858676237587986, 21.03437639706334, 20.606905444732547, 22.268005688332266, 22.081121004032525, 23.79774725739867]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-1.5312561794591986, -1.3948769239807641, -1.610750580367179, -1.5220794752641638, -1.2543185628759843, -1.2452181562904001, -1.4257366946550938, -1.3696798938721653, -0.9191308026905887]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-1.9329491694062426, -1.7168869984695334, -2.240975597671479, -2.079470188807079, -1.6625752554178916, -1.9691945829339943, -1.8300441761135744, -1.9048102492625958, -1.009514567667111]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.894235545483694, -1.7420365346934, -2.0140064761742065, -1.8166115425844256, -1.4942709827501202, -1.6851260151268688, -2.049327614537167, -1.9908408515262452, -1.467270644347278]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-2.2750427919816842, -2.136941688062452, -2.795906214780957, -2.5922839770493624, -2.0222759261973753, -2.489820476317867, -2.643920102434893, -2.7113157347651136, -1.531234251070006]}}