{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:51:09.399822", "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": "2012-Aug-14_to_2012-Aug-18_36.0_6.5"}, "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": 2012080000721}, "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 14 2012"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "August 18 2012"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 5}, "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": 52282.330524366465}, "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", "Kenya", "South Sudan"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["N.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": 6.5}, "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": 36.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "36.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 34.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 37.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 3.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 7.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2012-08-14T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[36.0, 7.25], [36.53, 7.03], [36.75, 6.5], [36.53, 5.97], [36.0, 5.75], [35.47, 5.97], [35.25, 6.5], [35.47, 7.03], [36.0, 7.25]]]]}, "2012-08-15T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[36.0, 7.25], [36.53, 7.03], [36.75, 6.5], [36.53, 5.97], [36.0, 5.75], [35.47, 5.97], [35.25, 6.5], [35.47, 7.03], [36.0, 7.25]]]]}, "2012-08-16T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[34.35, 5.25], [34.25, 5.5], [34.46, 6.0], [34.25, 6.5], [34.47, 7.03], [35.0, 7.25], [35.25, 7.15], [35.32, 7.18], [35.47, 7.53], [36.0, 7.75], [36.53, 7.53], [36.68, 7.18], [36.75, 7.15], [37.0, 7.25], [37.53, 7.03], [37.75, 6.5], [37.65, 6.25], [37.75, 6.0], [37.53, 5.47], [37.0, 5.25], [36.7, 5.38], [36.53, 4.97], [36.18, 4.82], [36.15, 4.75], [36.25, 4.5], [36.15, 4.25], [36.25, 4.0], [36.03, 3.47], [35.5, 3.25], [34.97, 3.47], [34.82, 3.82], [34.47, 3.97], [34.25, 4.5], [34.35, 4.75], [34.25, 5.0], [34.35, 5.25]]]]}, "2012-08-17T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[34.35, 5.25], [34.25, 5.5], [34.46, 6.0], [34.25, 6.5], [34.47, 7.03], [35.0, 7.25], [35.25, 7.15], [35.32, 7.18], [35.47, 7.53], [36.0, 7.75], [36.53, 7.53], [36.68, 7.18], [36.75, 7.15], [37.0, 7.25], [37.53, 7.03], [37.75, 6.5], [37.65, 6.25], [37.75, 6.0], [37.53, 5.47], [37.0, 5.25], [36.7, 5.38], [36.53, 4.97], [36.18, 4.82], [36.15, 4.75], [36.25, 4.5], [36.15, 4.25], [36.25, 4.0], [36.03, 3.47], [35.5, 3.25], [34.97, 3.47], [34.82, 3.82], [34.47, 3.97], [34.25, 4.5], [34.35, 4.75], [34.25, 5.0], [34.35, 5.25]]]]}, "2012-08-18T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[34.35, 5.25], [34.25, 5.5], [34.46, 6.0], [34.25, 6.5], [34.47, 7.03], [35.0, 7.25], [35.25, 7.15], [35.32, 7.18], [35.47, 7.53], [36.0, 7.75], [36.53, 7.53], [36.68, 7.18], [36.75, 7.15], [37.0, 7.25], [37.53, 7.03], [37.75, 6.5], [37.65, 6.25], [37.75, 6.0], [37.53, 5.47], [37.0, 5.25], [36.7, 5.38], [36.53, 4.97], [36.18, 4.82], [36.15, 4.75], [36.25, 4.5], [36.15, 4.25], [36.25, 4.0], [36.03, 3.47], [35.5, 3.25], [34.97, 3.47], [34.82, 3.82], [34.47, 3.97], [34.25, 4.5], [34.35, 4.75], [34.25, 5.0], [34.35, 5.25]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -3.7419856104912697}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -2.5916764995464154}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [22.313861530669044, 23.23748846898667, 23.09878543941295, 23.285970246818295, 23.65501569877995]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [22.313861530669044, 23.23748846898667, 18.62819630408444, 18.29509999224365, 18.361085262132463]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-3.466636390310157, -2.6320810484182857, -2.7774708830767536, -2.6480566429045043, -2.2956570056205994]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-3.466636390310157, -2.6320810484182857, -3.7419856104912697, -3.7406951758586047, -3.220389967254846]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.9912335521024243, -1.5227321319710594, -1.959942830915591, -1.9125978266687498, -1.6541201164974968]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.9912335521024243, -1.5227321319710594, -2.4452099019893776, -2.5214396946955966, -1.942234190098646]}}