First ISCCP Regional Experiment (FIRE) Atlantic Stratocumulus Transition Experiment (ASTEX) Porto Santo Radiosonde Data

The First ISCCP Regional Experiments (FIRE) have been designed to improve data products and cloud/radiation parameterizations used in general circulation models (GCMs). Specifically, the goals of FIRE are (1) to improve the basic understanding of the interaction of physical processes in determining life cycles of cirrus and marine stratocumulus systems and the radiative properties of these clouds during their life cycles and (2) to investigate the interrelationships between the International Satellite Cloud Climatology Project (ISCCP) data, GCM parameterizations, and higher space and time resolution cloud data. Radiosonde data were collected during the FIRE Atlantic Stratocumulus Transition Experiment (ASTEX) for time period June 3, 1992 through June 23, 1992 from the Oceanus (ship). There are 3 sets of interpolated sounding data. They are 5-second, 20-meter, and 2-millibar. Each file contains a 5-line header. The first line is the site name (up to 16 characters), the next line is the latitude and longitude at the time of launch, the third contains the date-time group at launch in YYMMDDHHMM format. Lines 4 and 5 describe the data to follow, which comprise no more than 1500 additional lines. The data are: minutes, seconds past launch, ascent rate, height, pressure, temperature, relative humidity, dew point, mixing ratio and wind speed and direction.

Data and Resources

Additional Info

Field	Value
Maintainer	Earthdata Forum
Last Updated	May 18, 2026, 19:32 (UTC)
Created	April 1, 2025, 15:43 (UTC)
accessLevel	public
bureauCode	{026:00}
catalog_conformsTo	https://project-open-data.cio.gov/v1.1/schema
harvest_object_id	773c47ff-a510-4eed-b4a6-522cb655cc22
harvest_source_id	b99e41c6-fe79-4c19-bbc3-9b6c8111bfac
harvest_source_title	Science Discovery Engine
identifier	10.5067/ASDC_DAAC/FIRE/0042
license	https://www.usa.gov/government-works
modified	2026-05-14T22:12:39Z
programCode	{026:000}
publisher	NASA/LARC/SD/ASDC
resource-type	Dataset
source_datajson_identifier	true
source_hash	1c83e75012a4809ff34ea451d229d1e29cd4c52e192723a2d78d9fa38ca30c85
source_schema_version	1.1
spatial	["CARTESIAN",[{"Latitude":33.08,"Longitude":-16.35}]]
temporal	1992-06-01/1992-06-29
theme	{"Earth Science"}