{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:49:30.087610", "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-Jan-19_to_2012-Jan-26_40.5_7.5"}, "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": 2012010002438}, "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": "January 19 2012"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "January 26 2012"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 8}, "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": 61293.03596377377}, "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"]}, "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": 7.5}, "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": 40.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "40.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 39.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 43.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 6.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 8.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2012-01-19T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[40.5, 8.25], [41.03, 8.03], [41.25, 7.5], [41.03, 6.97], [40.68, 6.82], [40.53, 6.47], [40.0, 6.25], [39.47, 6.47], [39.25, 7.0], [39.47, 7.53], [39.82, 7.68], [39.97, 8.03], [40.5, 8.25]]]]}, "2012-01-20T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[40.5, 8.25], [41.03, 8.03], [41.25, 7.5], [41.03, 6.97], [40.68, 6.82], [40.53, 6.47], [40.0, 6.25], [39.47, 6.47], [39.25, 7.0], [39.47, 7.53], [39.82, 7.68], [39.97, 8.03], [40.5, 8.25]]]]}, "2012-01-21T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[40.32, 8.18], [40.47, 8.53], [40.82, 8.68], [40.97, 9.03], [41.5, 9.25], [42.0, 9.04], [42.5, 9.25], [43.03, 9.03], [43.18, 8.68], [43.53, 8.53], [43.75, 8.0], [43.65, 7.75], [43.75, 7.5], [43.65, 7.25], [43.75, 7.0], [43.53, 6.47], [43.0, 6.25], [42.47, 6.47], [42.25, 7.0], [42.35, 7.25], [42.32, 7.32], [42.25, 7.35], [42.18, 7.32], [42.03, 6.97], [41.68, 6.82], [41.53, 6.47], [41.0, 6.25], [40.75, 6.35], [40.5, 6.25], [40.25, 6.35], [40.0, 6.25], [39.47, 6.47], [39.25, 7.0], [39.47, 7.53], [39.82, 7.68], [39.97, 8.03], [40.32, 8.18]]]]}, "2012-01-22T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[39.25, 7.0], [39.47, 7.53], [39.82, 7.68], [39.97, 8.03], [40.32, 8.18], [40.47, 8.53], [40.82, 8.68], [40.97, 9.03], [41.5, 9.25], [42.0, 9.04], [42.5, 9.25], [43.03, 9.03], [43.18, 8.68], [43.53, 8.53], [43.75, 8.0], [43.65, 7.75], [43.75, 7.5], [43.65, 7.25], [43.75, 7.0], [43.53, 6.47], [43.0, 6.25], [42.5, 6.46], [42.0, 6.25], [41.75, 6.35], [41.68, 6.32], [41.53, 5.97], [41.0, 5.75], [40.75, 5.85], [40.5, 5.75], [39.97, 5.97], [39.82, 6.32], [39.47, 6.47], [39.25, 7.0]]]]}, "2012-01-23T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[39.25, 7.0], [39.47, 7.53], [39.82, 7.68], [39.97, 8.03], [40.32, 8.18], [40.47, 8.53], [40.82, 8.68], [40.97, 9.03], [41.5, 9.25], [42.0, 9.04], [42.5, 9.25], [43.03, 9.03], [43.18, 8.68], [43.53, 8.53], [43.75, 8.0], [43.65, 7.75], [43.75, 7.5], [43.65, 7.25], [43.75, 7.0], [43.53, 6.47], [43.0, 6.25], [42.5, 6.46], [42.0, 6.25], [41.75, 6.35], [41.68, 6.32], [41.53, 5.97], [41.0, 5.75], [40.75, 5.85], [40.5, 5.75], [39.97, 5.97], [39.82, 6.32], [39.47, 6.47], [39.25, 7.0]]]]}, "2012-01-24T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[39.25, 7.0], [39.47, 7.53], [39.82, 7.68], [39.97, 8.03], [40.32, 8.18], [40.47, 8.53], [41.0, 8.75], [41.25, 8.65], [41.5, 8.75], [41.75, 8.65], [42.0, 8.75], [42.25, 8.65], [42.5, 8.75], [43.03, 8.53], [43.25, 8.0], [43.03, 7.47], [42.68, 7.32], [42.65, 7.25], [42.75, 7.0], [42.53, 6.47], [42.0, 6.25], [41.75, 6.35], [41.68, 6.32], [41.53, 5.97], [41.0, 5.75], [40.75, 5.85], [40.5, 5.75], [39.97, 5.97], [39.82, 6.32], [39.47, 6.47], [39.25, 7.0]]]]}, "2012-01-25T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[41.0, 8.75], [41.53, 8.53], [41.75, 8.0], [41.53, 7.47], [41.0, 7.25], [40.47, 7.47], [40.25, 8.0], [40.47, 8.53], [41.0, 8.75]]]]}, "2012-01-26T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[41.0, 8.75], [41.53, 8.53], [41.75, 8.0], [41.53, 7.47], [41.0, 7.25], [40.47, 7.47], [40.25, 8.0], [40.47, 8.53], [41.0, 8.75]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 3.093267473699939}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 1.7380012825687585}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [17.899995985329895, 17.6852251448978, 24.985878183195098, 25.766240053939555, 25.537055466398613, 25.268202475416274, 25.114580460529567, 24.998349178841067]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [22.33157229943123, 21.82879356169599, 28.317716970661024, 29.233881174344617, 29.022181349970822, 29.037336146606833, 25.114580460529567, 24.998349178841067]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [1.5085909908634108, 1.2473193275513097, 1.822541342689764, 1.9094605203680346, 1.6343596169659036, 1.6863660226511759, 1.6022881777204816, 1.4639754338828652]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [1.9208493973717395, 1.3712370915454244, 3.03397869928898, 3.093267473699939, 2.6332762787461093, 2.314803268548985, 1.6022881777204816, 1.4639754338828652]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.4738483797309367, 1.2829607380021262, 1.857187402910525, 1.963011949735505, 1.6171380941274758, 1.6409827253607352, 1.3702218416945884, 1.2376084527273798]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.7040937164045484, 1.2976121323602792, 2.881636589474003, 2.856611068967265, 2.377082766453347, 2.377649504713521, 1.3702218416945884, 1.2376084527273798]}}