{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:51:47.405293", "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-Nov-03_to_2012-Nov-06_90.0_25.0"}, "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": 2012110000200}, "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": "November 03 2012"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "November 06 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": "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": 56106.70131811101}, "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": ["Bangladesh", "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": 25.0}, "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": 90.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "90.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 87.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 90.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 23.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 25.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2012-11-03T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[86.85, 25.25], [86.75, 25.5], [86.97, 26.03], [87.5, 26.25], [87.75, 26.15], [88.0, 26.25], [88.25, 26.15], [88.5, 26.25], [88.75, 26.15], [89.0, 26.25], [89.25, 26.15], [89.5, 26.25], [90.03, 26.03], [90.18, 25.68], [90.53, 25.53], [90.75, 25.0], [90.65, 24.75], [90.75, 24.5], [90.53, 23.97], [90.0, 23.75], [89.75, 23.85], [89.68, 23.82], [89.53, 23.47], [89.0, 23.25], [88.75, 23.35], [88.5, 23.25], [88.25, 23.35], [88.0, 23.25], [87.47, 23.47], [87.32, 23.82], [86.97, 23.97], [86.75, 24.5], [86.85, 24.75], [86.75, 25.0], [86.85, 25.25]]]]}, "2012-11-04T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[86.85, 25.25], [86.75, 25.5], [86.97, 26.03], [87.5, 26.25], [87.75, 26.15], [88.0, 26.25], [88.25, 26.15], [88.5, 26.25], [88.75, 26.15], [89.0, 26.25], [89.25, 26.15], [89.5, 26.25], [90.03, 26.03], [90.18, 25.68], [90.53, 25.53], [90.75, 25.0], [90.65, 24.75], [90.75, 24.5], [90.53, 23.97], [90.0, 23.75], [89.75, 23.85], [89.68, 23.82], [89.53, 23.47], [89.0, 23.25], [88.75, 23.35], [88.5, 23.25], [88.25, 23.35], [88.0, 23.25], [87.47, 23.47], [87.32, 23.82], [86.97, 23.97], [86.75, 24.5], [86.85, 24.75], [86.75, 25.0], [86.85, 25.25]]]]}, "2012-11-05T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[86.85, 25.25], [86.75, 25.5], [86.97, 26.03], [87.5, 26.25], [87.75, 26.15], [88.0, 26.25], [88.25, 26.15], [88.5, 26.25], [88.75, 26.15], [89.0, 26.25], [89.25, 26.15], [89.5, 26.25], [90.03, 26.03], [90.18, 25.68], [90.53, 25.53], [90.75, 25.0], [90.65, 24.75], [90.75, 24.5], [90.53, 23.97], [90.0, 23.75], [89.75, 23.85], [89.68, 23.82], [89.53, 23.47], [89.0, 23.25], [88.75, 23.35], [88.5, 23.25], [88.25, 23.35], [88.0, 23.25], [87.47, 23.47], [87.32, 23.82], [86.97, 23.97], [86.75, 24.5], [86.85, 24.75], [86.75, 25.0], [86.85, 25.25]]]]}, "2012-11-06T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[88.97, 24.47], [88.75, 25.0], [88.97, 25.53], [89.5, 25.75], [89.75, 25.65], [90.0, 25.75], [90.53, 25.53], [90.75, 25.0], [90.53, 24.47], [90.0, 24.25], [89.75, 24.35], [89.5, 24.25], [88.97, 24.47]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -3.5422376706130763}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -2.2416149527853655}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [22.218722163023813, 22.258198228911112, 22.634070331498435, 22.890218702523725]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [21.365588490852474, 21.655788084546543, 21.571430788549605, 22.84918799595596]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-2.5356379475718027, -2.3895619064484945, -1.876099851079789, -1.4770664853454605]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-3.5422376706130763, -2.929503092088396, -2.571924911325141, -1.4963757691472779]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-2.2584759670355927, -2.1637372473593577, -1.728420155058528, -1.4027731286273863]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-3.2079747978867124, -2.678148368974064, -2.43201494329736, -1.4283159147315005]}}