{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:49:48.878418", "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-Mar-12_to_2012-Mar-15_104.0_1.5"}, "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": 2012030000820}, "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 12 2012"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "March 15 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": 77158.2288069613}, "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", "Malaysia"]}, "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": []}, "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": 1.5}, "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": 104.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "104.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 101.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 104.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 0.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 4.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2012-03-12T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[100.85, 3.75], [100.75, 4.0], [100.85, 4.25], [100.75, 4.5], [100.97, 5.03], [101.5, 5.25], [101.75, 5.15], [102.0, 5.25], [102.25, 5.15], [102.5, 5.25], [103.03, 5.03], [103.18, 4.68], [103.53, 4.53], [103.75, 4.0], [103.65, 3.75], [103.75, 3.5], [103.65, 3.25], [103.68, 3.18], [104.03, 3.03], [104.18, 2.68], [104.53, 2.53], [104.75, 2.0], [104.65, 1.75], [104.68, 1.68], [105.03, 1.53], [105.25, 1.0], [105.03, 0.47], [104.5, 0.25], [103.97, 0.47], [103.82, 0.82], [103.75, 0.85], [103.5, 0.75], [102.97, 0.97], [102.82, 1.32], [102.47, 1.47], [102.32, 1.82], [102.25, 1.85], [102.0, 1.75], [101.47, 1.97], [101.32, 2.32], [100.97, 2.47], [100.75, 3.0], [100.85, 3.25], [100.75, 3.5], [100.85, 3.75]]]]}, "2012-03-13T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[100.85, 3.75], [100.75, 4.0], [100.85, 4.25], [100.75, 4.5], [100.97, 5.03], [101.5, 5.25], [101.75, 5.15], [102.0, 5.25], [102.25, 5.15], [102.5, 5.25], [103.03, 5.03], [103.18, 4.68], [103.53, 4.53], [103.75, 4.0], [103.65, 3.75], [103.75, 3.5], [103.65, 3.25], [103.68, 3.18], [104.03, 3.03], [104.18, 2.68], [104.53, 2.53], [104.75, 2.0], [104.65, 1.75], [104.68, 1.68], [105.03, 1.53], [105.25, 1.0], [105.03, 0.47], [104.5, 0.25], [103.97, 0.47], [103.82, 0.82], [103.75, 0.85], [103.5, 0.75], [102.97, 0.97], [102.82, 1.32], [102.47, 1.47], [102.32, 1.82], [102.25, 1.85], [102.0, 1.75], [101.47, 1.97], [101.32, 2.32], [100.97, 2.47], [100.75, 3.0], [100.85, 3.25], [100.75, 3.5], [100.85, 3.75]]]]}, "2012-03-14T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[100.85, 3.75], [100.75, 4.0], [100.85, 4.25], [100.75, 4.5], [100.97, 5.03], [101.5, 5.25], [101.75, 5.15], [102.0, 5.25], [102.25, 5.15], [102.5, 5.25], [103.03, 5.03], [103.18, 4.68], [103.53, 4.53], [103.75, 4.0], [103.65, 3.75], [103.75, 3.5], [103.65, 3.25], [103.68, 3.18], [104.03, 3.03], [104.18, 2.68], [104.53, 2.53], [104.75, 2.0], [104.65, 1.75], [104.68, 1.68], [105.03, 1.53], [105.25, 1.0], [105.03, 0.47], [104.5, 0.25], [103.97, 0.47], [103.82, 0.82], [103.75, 0.85], [103.5, 0.75], [102.97, 0.97], [102.82, 1.32], [102.47, 1.47], [102.32, 1.82], [102.25, 1.85], [102.0, 1.75], [101.47, 1.97], [101.32, 2.32], [100.97, 2.47], [100.75, 3.0], [100.85, 3.25], [100.75, 3.5], [100.85, 3.75]]]]}, "2012-03-15T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[100.75, 4.5], [100.97, 5.03], [101.5, 5.25], [101.75, 5.15], [102.0, 5.25], [102.25, 5.15], [102.5, 5.25], [103.03, 5.03], [103.18, 4.68], [103.53, 4.53], [103.75, 4.0], [103.65, 3.75], [103.75, 3.5], [103.65, 3.25], [103.68, 3.18], [104.03, 3.03], [104.25, 2.5], [104.15, 2.25], [104.18, 2.18], [104.53, 2.03], [104.75, 1.5], [104.53, 0.97], [104.0, 0.75], [103.75, 0.85], [103.5, 0.75], [102.97, 0.97], [102.82, 1.32], [102.47, 1.47], [102.32, 1.82], [101.97, 1.97], [101.82, 2.32], [101.47, 2.47], [101.25, 3.0], [101.35, 3.25], [101.25, 3.5], [101.35, 3.75], [101.32, 3.82], [100.97, 3.97], [100.75, 4.5]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -3.054922716855515}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -2.0723271562160615}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [24.20424601037746, 24.70785899730788, 24.483702926627643, 24.69735803900153]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [20.610427030015842, 21.561654143937233, 21.15226433523611, 21.6305063981917]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-2.3301916129789744, -1.8734221225079681, -2.1361103055522674, -1.9108237714910268]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-3.049727120260002, -2.6285614785260805, -3.054922716855515, -2.572522504225958]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-2.0861037239787, -1.7082047763175365, -1.954543761707068, -1.6547215347555337]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-2.347427148693214, -2.1261653334417514, -2.782877610303658, -1.9184823017016843]}}