{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:51:04.492155", "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-Jul-21_to_2012-Jul-24_42.5_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": 2012070002693}, "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": "July 21 2012"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "July 24 2012"}, "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": 82693.61179341788}, "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", "Somalia"]}, "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": 42.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "42.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 41.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 46.25}, "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": 9.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2012-07-21T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[41.97, 8.03], [42.5, 8.25], [42.75, 8.15], [42.82, 8.18], [42.97, 8.53], [43.5, 8.75], [43.75, 8.65], [43.82, 8.68], [43.97, 9.03], [44.5, 9.25], [45.0, 9.04], [45.5, 9.25], [45.75, 9.15], [46.0, 9.25], [46.53, 9.03], [46.75, 8.5], [46.53, 7.97], [46.0, 7.75], [45.75, 7.85], [45.68, 7.82], [45.53, 7.47], [45.18, 7.32], [45.03, 6.97], [44.5, 6.75], [44.25, 6.85], [44.0, 6.75], [43.75, 6.85], [43.68, 6.82], [43.53, 6.47], [43.0, 6.25], [42.75, 6.35], [42.5, 6.25], [41.97, 6.47], [41.75, 7.0], [41.85, 7.25], [41.75, 7.5], [41.97, 8.03]]]]}, "2012-07-22T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[40.85, 7.25], [40.75, 7.5], [40.85, 7.75], [40.75, 8.0], [40.85, 8.25], [40.75, 8.5], [40.97, 9.03], [41.5, 9.25], [41.75, 9.15], [41.82, 9.18], [41.97, 9.53], [42.5, 9.75], [43.03, 9.53], [43.25, 9.0], [43.13, 8.7], [43.25, 8.65], [43.5, 8.75], [43.75, 8.65], [43.82, 8.68], [43.97, 9.03], [44.5, 9.25], [45.0, 9.04], [45.5, 9.25], [45.75, 9.15], [46.0, 9.25], [46.53, 9.03], [46.75, 8.5], [46.53, 7.97], [46.0, 7.75], [45.75, 7.85], [45.68, 7.82], [45.53, 7.47], [45.18, 7.32], [45.03, 6.97], [44.5, 6.75], [44.25, 6.85], [44.0, 6.75], [43.75, 6.85], [43.68, 6.82], [43.53, 6.47], [43.0, 6.25], [42.75, 6.35], [42.68, 6.32], [42.53, 5.97], [42.0, 5.75], [41.75, 5.85], [41.5, 5.75], [40.97, 5.97], [40.75, 6.5], [40.85, 6.75], [40.75, 7.0], [40.85, 7.25]]]]}, "2012-07-23T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[40.85, 7.25], [40.75, 7.5], [40.85, 7.75], [40.75, 8.0], [40.85, 8.25], [40.75, 8.5], [40.97, 9.03], [41.5, 9.25], [41.75, 9.15], [41.82, 9.18], [41.97, 9.53], [42.5, 9.75], [43.03, 9.53], [43.25, 9.0], [43.13, 8.7], [43.25, 8.65], [43.5, 8.75], [43.75, 8.65], [43.82, 8.68], [43.97, 9.03], [44.5, 9.25], [45.0, 9.04], [45.5, 9.25], [45.75, 9.15], [46.0, 9.25], [46.53, 9.03], [46.75, 8.5], [46.53, 7.97], [46.0, 7.75], [45.75, 7.85], [45.68, 7.82], [45.53, 7.47], [45.18, 7.32], [45.03, 6.97], [44.5, 6.75], [44.25, 6.85], [44.0, 6.75], [43.75, 6.85], [43.68, 6.82], [43.53, 6.47], [43.0, 6.25], [42.75, 6.35], [42.68, 6.32], [42.53, 5.97], [42.0, 5.75], [41.75, 5.85], [41.5, 5.75], [40.97, 5.97], [40.75, 6.5], [40.85, 6.75], [40.75, 7.0], [40.85, 7.25]]]]}, "2012-07-24T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[40.85, 7.25], [40.75, 7.5], [40.85, 7.75], [40.75, 8.0], [40.85, 8.25], [40.75, 8.5], [40.97, 9.03], [41.5, 9.25], [41.75, 9.15], [41.82, 9.18], [41.97, 9.53], [42.5, 9.75], [43.03, 9.53], [43.25, 9.0], [43.13, 8.7], [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], [42.75, 6.35], [42.68, 6.32], [42.53, 5.97], [42.0, 5.75], [41.75, 5.85], [41.5, 5.75], [40.97, 5.97], [40.75, 6.5], [40.85, 6.75], [40.75, 7.0], [40.85, 7.25]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 2.513217148735805}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 1.798139506722173}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [25.663736537632303, 26.096624026165614, 26.066022606774823, 26.364264024941917]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [27.156834979245616, 29.396306217207098, 29.395284172069296, 29.403886385313115]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [1.5075026504081646, 1.874424706363064, 1.8297316868747953, 1.8661528440146005]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [1.6861519767232949, 2.513217148735805, 2.3297502831380825, 2.3020296012115296]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.412591131107515, 1.5223417210851211, 1.5231398000407708, 1.4867931393566292]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.6012648034931594, 1.7621566906679345, 1.713560293142353, 1.7203155852904766]}}