{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:03:35.164711", "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": "2015-Aug-03_to_2015-Aug-06_79.5_21.0"}, "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": 2015080000222}, "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 03 2015"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "August 06 2015"}, "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": "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": 74970.37023707853}, "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": ["India"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["S.Asia"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["Asia"]}, "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": 21.0}, "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": 79.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "79.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 77.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 81.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 19.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 22.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2015-08-03T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[78.47, 23.03], [79.0, 23.25], [79.25, 23.15], [79.5, 23.25], [79.75, 23.15], [80.0, 23.25], [80.5, 23.04], [81.0, 23.25], [81.53, 23.03], [81.68, 22.68], [82.03, 22.53], [82.25, 22.0], [82.03, 21.47], [81.68, 21.32], [81.65, 21.25], [81.75, 21.0], [81.53, 20.47], [81.0, 20.25], [80.47, 20.47], [80.25, 21.0], [80.35, 21.25], [80.32, 21.32], [80.25, 21.35], [80.0, 21.25], [79.75, 21.35], [79.5, 21.25], [79.25, 21.35], [79.0, 21.25], [78.47, 21.47], [78.25, 22.0], [78.35, 22.25], [78.25, 22.5], [78.47, 23.03]]]]}, "2015-08-04T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[77.47, 20.53], [78.0, 20.75], [78.25, 20.65], [78.32, 20.68], [78.47, 21.03], [78.82, 21.18], [78.88, 21.3], [78.47, 21.47], [78.25, 22.0], [78.35, 22.25], [78.25, 22.5], [78.47, 23.03], [79.0, 23.25], [79.25, 23.15], [79.5, 23.25], [79.75, 23.15], [80.0, 23.25], [80.5, 23.04], [81.0, 23.25], [81.53, 23.03], [81.68, 22.68], [82.03, 22.53], [82.25, 22.0], [82.03, 21.47], [81.68, 21.32], [81.65, 21.25], [81.75, 21.0], [81.53, 20.47], [81.18, 20.32], [81.03, 19.97], [80.68, 19.82], [80.53, 19.47], [80.0, 19.25], [79.75, 19.35], [79.5, 19.25], [79.25, 19.35], [79.18, 19.32], [79.03, 18.97], [78.5, 18.75], [78.25, 18.85], [78.0, 18.75], [77.47, 18.97], [77.25, 19.5], [77.35, 19.75], [77.25, 20.0], [77.47, 20.53]]]]}, "2015-08-05T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[77.47, 20.53], [78.0, 20.75], [78.25, 20.65], [78.32, 20.68], [78.47, 21.03], [78.82, 21.18], [78.88, 21.3], [78.47, 21.47], [78.25, 22.0], [78.35, 22.25], [78.25, 22.5], [78.47, 23.03], [79.0, 23.25], [79.25, 23.15], [79.5, 23.25], [79.75, 23.15], [80.0, 23.25], [80.5, 23.04], [81.0, 23.25], [81.53, 23.03], [81.68, 22.68], [82.03, 22.53], [82.25, 22.0], [82.03, 21.47], [81.68, 21.32], [81.65, 21.25], [81.75, 21.0], [81.53, 20.47], [81.18, 20.32], [81.03, 19.97], [80.68, 19.82], [80.53, 19.47], [80.0, 19.25], [79.75, 19.35], [79.5, 19.25], [79.25, 19.35], [79.18, 19.32], [79.03, 18.97], [78.5, 18.75], [78.25, 18.85], [78.0, 18.75], [77.47, 18.97], [77.25, 19.5], [77.35, 19.75], [77.25, 20.0], [77.47, 20.53]]]]}, "2015-08-06T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[77.47, 20.53], [78.0, 20.75], [78.25, 20.65], [78.32, 20.68], [78.47, 21.03], [78.82, 21.18], [78.97, 21.53], [79.5, 21.75], [79.75, 21.65], [80.0, 21.75], [80.25, 21.65], [80.5, 21.75], [80.75, 21.65], [81.0, 21.75], [81.53, 21.53], [81.75, 21.0], [81.53, 20.47], [81.18, 20.32], [81.03, 19.97], [80.68, 19.82], [80.53, 19.47], [80.0, 19.25], [79.75, 19.35], [79.5, 19.25], [79.25, 19.35], [79.18, 19.32], [79.03, 18.97], [78.5, 18.75], [78.25, 18.85], [78.0, 18.75], [77.47, 18.97], [77.25, 19.5], [77.35, 19.75], [77.25, 20.0], [77.47, 20.53]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -3.3610233045210975}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -2.2982633352426034}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [23.7215049740509, 23.510375233378227, 23.668753976671496, 24.625868159106574]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [22.6034933709131, 22.480257238893614, 21.698671892758796, 23.33176022727622]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-1.8797093123785988, -2.619315816800364, -2.388909933685161, -1.9194948148665882]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-2.0488770660676323, -3.3610233045210975, -3.113560408717831, -2.4124829040753752]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.520681092267102, -2.0377001938705743, -1.924492736319071, -1.5245309244219951]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.7650394570211725, -2.528140194745317, -2.470283934775986, -1.8906655620596164]}}