{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:20:02.031302", "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": "2019-Jul-03_to_2019-Jul-06_76.0_23.0"}, "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": 2019070000182}, "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 03 2019"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "July 06 2019"}, "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": 98711.58246879862}, "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": 23.0}, "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": 76.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "76.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 73.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 77.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 22.25}, "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": {"2019-07-03T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[74.97, 24.03], [75.5, 24.25], [75.75, 24.15], [76.0, 24.25], [76.53, 24.03], [76.68, 23.68], [77.03, 23.53], [77.25, 23.0], [77.03, 22.47], [76.68, 22.32], [76.53, 21.97], [76.0, 21.75], [75.47, 21.97], [75.32, 22.32], [74.97, 22.47], [74.75, 23.0], [74.85, 23.25], [74.75, 23.5], [74.97, 24.03]]]]}, "2019-07-04T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[73.47, 25.03], [73.82, 25.18], [73.85, 25.25], [73.75, 25.5], [73.97, 26.03], [74.5, 26.25], [74.75, 26.15], [75.0, 26.25], [75.25, 26.15], [75.5, 26.25], [76.0, 26.04], [76.5, 26.25], [76.75, 26.15], [77.0, 26.25], [77.53, 26.03], [77.75, 25.5], [77.65, 25.25], [77.75, 25.0], [77.53, 24.47], [77.18, 24.32], [77.15, 24.25], [77.18, 24.18], [77.25, 24.15], [77.5, 24.25], [78.03, 24.03], [78.25, 23.5], [78.15, 23.25], [78.25, 23.0], [78.03, 22.47], [77.5, 22.25], [77.25, 22.35], [77.0, 22.25], [76.75, 22.35], [76.68, 22.32], [76.53, 21.97], [76.0, 21.75], [75.75, 21.85], [75.5, 21.75], [74.97, 21.97], [74.82, 22.32], [74.47, 22.47], [74.25, 23.0], [74.43, 23.43], [74.0, 23.25], [73.47, 23.47], [73.25, 24.0], [73.35, 24.25], [73.25, 24.5], [73.47, 25.03]]]]}, "2019-07-05T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[73.47, 25.03], [73.82, 25.18], [73.85, 25.25], [73.75, 25.5], [73.97, 26.03], [74.5, 26.25], [74.75, 26.15], [75.0, 26.25], [75.25, 26.15], [75.5, 26.25], [76.0, 26.04], [76.5, 26.25], [76.75, 26.15], [77.0, 26.25], [77.53, 26.03], [77.75, 25.5], [77.65, 25.25], [77.75, 25.0], [77.53, 24.47], [77.18, 24.32], [77.15, 24.25], [77.18, 24.18], [77.25, 24.15], [77.5, 24.25], [78.03, 24.03], [78.25, 23.5], [78.15, 23.25], [78.25, 23.0], [78.03, 22.47], [77.5, 22.25], [77.25, 22.35], [77.0, 22.25], [76.75, 22.35], [76.68, 22.32], [76.53, 21.97], [76.0, 21.75], [75.75, 21.85], [75.5, 21.75], [74.97, 21.97], [74.82, 22.32], [74.47, 22.47], [74.25, 23.0], [74.43, 23.43], [74.0, 23.25], [73.47, 23.47], [73.25, 24.0], [73.35, 24.25], [73.25, 24.5], [73.47, 25.03]]]]}, "2019-07-06T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[73.47, 25.03], [73.82, 25.18], [73.85, 25.25], [73.75, 25.5], [73.97, 26.03], [74.5, 26.25], [74.75, 26.15], [75.0, 26.25], [75.25, 26.15], [75.5, 26.25], [76.0, 26.04], [76.5, 26.25], [76.75, 26.15], [77.0, 26.25], [77.53, 26.03], [77.75, 25.5], [77.65, 25.25], [77.75, 25.0], [77.53, 24.47], [77.18, 24.32], [77.15, 24.25], [77.18, 24.18], [77.25, 24.15], [77.5, 24.25], [78.03, 24.03], [78.25, 23.5], [78.15, 23.25], [78.25, 23.0], [78.03, 22.47], [77.5, 22.25], [77.25, 22.35], [77.0, 22.25], [76.75, 22.35], [76.68, 22.32], [76.53, 21.97], [76.0, 21.75], [75.75, 21.85], [75.5, 21.75], [74.97, 21.97], [74.82, 22.32], [74.47, 22.47], [74.25, 23.0], [74.43, 23.43], [74.0, 23.25], [73.47, 23.47], [73.25, 24.0], [73.35, 24.25], [73.25, 24.5], [73.47, 25.03]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -5.333160313719873}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -3.519357176631394}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [25.16193959987396, 26.02839272175987, 25.07614022400668, 25.305583257714375]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [24.861812090373462, 24.55131870960514, 24.194802469598926, 23.936366413877806]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-2.657511792383057, -3.141457408617956, -3.9668826061580162, -3.597476438132209]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-2.780802563405132, -3.8207858939241532, -5.333160313719873, -4.670992214390992]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.4525210793278103, -1.4469544194022073, -1.7985794166986113, -1.6366658697557253]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.493069678033106, -1.6401052474851923, -2.265663641469599, -1.8982161580081922]}}