{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:19:19.574922", "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-Mar-14_to_2019-Mar-19_112.5_-9.0"}, "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": 2019030000406}, "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": "March 14 2019"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "March 19 2019"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 6}, "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": 167930.1963165995}, "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": ["Indonesia"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["S.E.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": ["Bali Sea", "Indian Ocean"]}, "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": -9.0}, "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": 112.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "112.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 107.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 117.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -10.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -7.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2019-03-14T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[117.0, -8.25], [117.53, -8.47], [117.75, -9.0], [117.53, -9.53], [117.0, -9.75], [116.47, -9.53], [116.25, -9.0], [116.47, -8.47], [117.0, -8.25]]]]}, "2019-03-15T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[108.5, -7.25], [108.75, -7.35], [109.0, -7.25], [109.25, -7.35], [109.5, -7.25], [109.75, -7.35], [110.0, -7.25], [110.53, -7.47], [110.68, -7.82], [110.75, -7.85], [111.0, -7.75], [111.25, -7.85], [111.5, -7.75], [111.75, -7.85], [112.0, -7.75], [112.25, -7.85], [112.5, -7.75], [112.75, -7.85], [112.82, -7.82], [112.97, -7.47], [113.5, -7.25], [114.03, -7.47], [114.18, -7.82], [114.25, -7.85], [114.5, -7.75], [115.0, -7.96], [115.5, -7.75], [116.03, -7.97], [116.18, -8.32], [116.25, -8.35], [116.5, -8.25], [116.75, -8.35], [117.0, -8.25], [117.53, -8.47], [117.75, -9.0], [117.53, -9.53], [117.0, -9.75], [116.75, -9.65], [116.68, -9.68], [116.53, -10.03], [116.18, -10.18], [116.03, -10.53], [115.5, -10.75], [115.25, -10.65], [115.0, -10.75], [114.47, -10.53], [114.25, -10.0], [114.38, -9.7], [114.25, -9.65], [114.18, -9.68], [114.03, -10.03], [113.5, -10.25], [113.25, -10.15], [113.0, -10.25], [112.75, -10.15], [112.5, -10.25], [111.97, -10.03], [111.82, -9.68], [111.75, -9.65], [111.5, -9.75], [111.25, -9.65], [111.0, -9.75], [110.5, -9.54], [110.0, -9.75], [109.75, -9.65], [109.5, -9.75], [108.97, -9.53], [108.82, -9.18], [108.75, -9.15], [108.5, -9.25], [108.25, -9.15], [108.0, -9.25], [107.47, -9.03], [107.25, -8.5], [107.47, -7.97], [107.82, -7.82], [107.97, -7.47], [108.5, -7.25]]]]}, "2019-03-16T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[107.35, -8.75], [107.25, -8.5], [107.47, -7.97], [107.82, -7.82], [107.97, -7.47], [108.5, -7.25], [108.75, -7.35], [109.0, -7.25], [109.25, -7.35], [109.5, -7.25], [109.75, -7.35], [110.0, -7.25], [110.53, -7.47], [110.68, -7.82], [110.75, -7.85], [111.0, -7.75], [111.25, -7.85], [111.5, -7.75], [111.75, -7.85], [112.0, -7.75], [112.25, -7.85], [112.5, -7.75], [112.75, -7.85], [112.82, -7.82], [112.97, -7.47], [113.5, -7.25], [114.03, -7.47], [114.18, -7.82], [114.25, -7.85], [114.5, -7.75], [115.0, -7.96], [115.5, -7.75], [116.03, -7.97], [116.18, -8.32], [116.25, -8.35], [116.5, -8.25], [116.75, -8.35], [117.0, -8.25], [117.53, -8.47], [117.75, -9.0], [117.53, -9.53], [117.0, -9.75], [116.75, -9.65], [116.68, -9.68], [116.53, -10.03], [116.18, -10.18], [116.03, -10.53], [115.5, -10.75], [115.25, -10.65], [115.0, -10.75], [114.47, -10.53], [114.32, -10.18], [114.25, -10.15], [114.0, -10.25], [113.75, -10.15], [113.5, -10.25], [113.25, -10.15], [113.0, -10.25], [112.75, -10.15], [112.5, -10.25], [112.25, -10.15], [112.0, -10.25], [111.75, -10.15], [111.5, -10.25], [111.25, -10.15], [111.0, -10.25], [110.75, -10.15], [110.5, -10.25], [109.97, -10.03], [109.82, -9.68], [109.75, -9.65], [109.68, -9.68], [109.65, -9.75], [109.75, -10.0], [109.53, -10.53], [109.0, -10.75], [108.47, -10.53], [108.32, -10.18], [108.25, -10.15], [108.0, -10.25], [107.47, -10.03], [107.25, -9.5], [107.35, -9.25], [107.25, -9.0], [107.35, -8.75]]]]}, "2019-03-17T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[107.35, -8.75], [107.25, -8.5], [107.47, -7.97], [107.82, -7.82], [107.97, -7.47], [108.5, -7.25], [108.75, -7.35], [109.0, -7.25], [109.25, -7.35], [109.5, -7.25], [109.75, -7.35], [110.0, -7.25], [110.53, -7.47], [110.68, -7.82], [110.75, -7.85], [111.0, -7.75], [111.25, -7.85], [111.5, -7.75], [111.75, -7.85], [112.0, -7.75], [112.25, -7.85], [112.5, -7.75], [112.75, -7.85], [112.82, -7.82], [112.97, -7.47], [113.5, -7.25], [114.03, -7.47], [114.18, -7.82], [114.25, -7.85], [114.5, -7.75], [115.0, -7.96], [115.5, -7.75], [116.03, -7.97], [116.18, -8.32], [116.25, -8.35], [116.5, -8.25], [117.03, -8.47], [117.25, -9.0], [117.03, -9.53], [116.68, -9.68], [116.53, -10.03], [116.18, -10.18], [116.03, -10.53], [115.5, -10.75], [115.25, -10.65], [115.0, -10.75], [114.47, -10.53], [114.32, -10.18], [114.25, -10.15], [114.0, -10.25], [113.75, -10.15], [113.5, -10.25], [113.25, -10.15], [113.0, -10.25], [112.75, -10.15], [112.5, -10.25], [112.25, -10.15], [112.0, -10.25], [111.75, -10.15], [111.5, -10.25], [111.25, -10.15], [111.0, -10.25], [110.75, -10.15], [110.5, -10.25], [109.97, -10.03], [109.82, -9.68], [109.75, -9.65], [109.68, -9.68], [109.65, -9.75], [109.75, -10.0], [109.53, -10.53], [109.0, -10.75], [108.47, -10.53], [108.32, -10.18], [108.25, -10.15], [108.0, -10.25], [107.47, -10.03], [107.25, -9.5], [107.35, -9.25], [107.25, -9.0], [107.35, -8.75]]]]}, "2019-03-18T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[107.35, -8.75], [107.25, -8.5], [107.47, -7.97], [107.82, -7.82], [107.97, -7.47], [108.5, -7.25], [108.75, -7.35], [109.0, -7.25], [109.25, -7.35], [109.5, -7.25], [109.75, -7.35], [110.0, -7.25], [110.53, -7.47], [110.68, -7.82], [110.75, -7.85], [111.0, -7.75], [111.25, -7.85], [111.5, -7.75], [111.75, -7.85], [112.0, -7.75], [112.25, -7.85], [112.5, -7.75], [112.75, -7.85], [112.82, -7.82], [112.97, -7.47], [113.5, -7.25], [114.03, -7.47], [114.18, -7.82], [114.25, -7.85], [114.5, -7.75], [115.0, -7.96], [115.5, -7.75], [116.03, -7.97], [116.25, -8.5], [116.15, -8.75], [116.25, -9.0], [116.03, -9.53], [115.68, -9.68], [115.65, -9.75], [115.75, -10.0], [115.53, -10.53], [115.0, -10.75], [114.47, -10.53], [114.32, -10.18], [114.25, -10.15], [114.0, -10.25], [113.75, -10.15], [113.5, -10.25], [113.25, -10.15], [113.0, -10.25], [112.75, -10.15], [112.5, -10.25], [112.25, -10.15], [112.0, -10.25], [111.75, -10.15], [111.5, -10.25], [111.25, -10.15], [111.0, -10.25], [110.75, -10.15], [110.5, -10.25], [109.97, -10.03], [109.82, -9.68], [109.75, -9.65], [109.68, -9.68], [109.65, -9.75], [109.75, -10.0], [109.53, -10.53], [109.0, -10.75], [108.47, -10.53], [108.32, -10.18], [108.25, -10.15], [108.0, -10.25], [107.47, -10.03], [107.25, -9.5], [107.35, -9.25], [107.25, -9.0], [107.35, -8.75]]]]}, "2019-03-19T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[109.75, -9.0], [109.97, -8.47], [110.5, -8.25], [111.03, -8.47], [111.18, -8.82], [111.25, -8.85], [111.32, -8.82], [111.47, -8.47], [112.0, -8.25], [112.25, -8.35], [112.5, -8.25], [112.75, -8.35], [113.0, -8.25], [113.53, -8.47], [113.75, -9.0], [113.53, -9.53], [113.0, -9.75], [112.75, -9.65], [112.5, -9.75], [112.25, -9.65], [112.18, -9.68], [112.03, -10.03], [111.5, -10.25], [111.25, -10.15], [111.0, -10.25], [110.47, -10.03], [110.32, -9.68], [109.97, -9.53], [109.75, -9.0]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -1.567598937251148}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -1.0584677740869304}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [25.3081841028785, 25.9496494792279, 25.97688033214439, 25.958016204839737, 26.104352470453705, 26.500975917628523]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [25.3081841028785, 22.13466121664328, 22.33631104533373, 22.177384921895566, 22.27904309999559, 26.462102900940636]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-0.8450468902289572, -1.014213953481071, -1.089983752696593, -1.1421286867242055, -0.9999671497175882, -0.8347239108561268]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-0.8450468902289572, -1.346749699386578, -1.413963292097094, -1.567598937251148, -1.210176209529834, -0.9315112137076085]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.3237470666444928, -1.5856091956123042, -1.7097732265702168, -1.7920896531643764, -1.5631886083578692, -1.25920371502864]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.3237470666444928, -2.221390571216822, -2.317781446725938, -2.522489533445345, -2.025464858267535, -1.4374309591991654]}}