First ISCCP Regional Experiment (FIRE) Atlantic Stratocumulus Transition Experiment (ASTEX
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Description
June 1-28, 1992 analysis products for the Atlantic Stratocumulus Transition Experiment (ASTEX) region, prepared by Ernst Klinker and Tony Hollingsworth of ECMWF and reformatted by Chris Bretherton of the University of Washington. The data consist of initializations and short-range forecasts from the ECMWF T213L30 operational model, incorporating about 650 special soundings and routine global observations. Data are provided as ASCII files with a horizontal resolution of 1.25 degrees in latitude and longitude, corresponding to base times of 00, 06, 12, or 18Z.
Use Cases
Modeling atmospheric vertical velocity patterns based on the mean vertical velocity (Pa/s) field.
Analyzing stratocumulus cloud transition dynamics over the North Atlantic based on the described spatial and temporal coverage.
Validating regional weather models using the ECMWF T213L30 operational model initializations and forecasts.
Studying the impact of special soundings from ships and islands on analysis quality as mentioned in the description.
Strengths
Incorporates about 650 special soundings from ASTEX field campaign instruments.
Data has a defined horizontal resolution of 1.25 degrees in latitude and longitude.
Covers a specific 28-day period (June 1-28, 1992) for focused research.
Limitations
Column-level documentation is absent; field semantics must be inferred after download.
Aircraft soundings were not included in the analyses, as stated in the description.
Row count is unknown, which may limit suitability assessment.
Provenance
Source
European Centre for Medium-range Weather Forecasts (ECMWF), reformatted by University of Washington.
Collection Method
Initializations and very short range forecasts using the ECMWF T213L30 operational model, incorporating routine and special ASTEX observations.
Time Range
June 1-28, 1992
Freshness
Last updated 2026-03-13 02:55:06.375083; freshness should be verified.
Geography
Atlantic Stratocumulus Transition Experiment (ASTEX) region (85W to 15E, 70N to 10N).
ECMWF requests acknowledgment for use and contact for research making more than casual use of the data.