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Global GTS Surface Synoptic Observations in GEMPAK Format

Summary

The GTS Three-Hourly Synoptic Observation Data set is one of several surface data sets collected by the National Center for Atmospheric Research/Earth Observing Laboratory (NCAR/EOL). Included in the data set are the global three-hourly synoptic observations. These data are contained in daily files which are in GEMPAK format. The data were aquired via the UNIDATA Local Data Manager (LDM).

Archive note

As of 21 May 2024, this gempak dataset will not be continuing to collect any real-time data. Please see related links below for similar datasets that will be continuing real-time data collection.

Data access

ORDER data to made available for download

Additional information

Identifier	DOI: https://doi.org/10.26023/Y3S2-C3VV-ZP0H
Data Quality	final
Versions	1.0 (2011-09-14)
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Related projects	T-REX: Terrain-induced Rotor Experiment VOCALS: VAMOS Ocean-Cloud-Atmosphere-Land Study TORUS-LItE: Targeted Observation by Radars and UAS of Supercells - Left-flank Intensive Experiment HIWC-RADAR-2015: High Ice Water Content (HIWC) Radar Study 2015 TORUS_2022: Targeted Observation by Radars and UAS of Supercells 2022 PREDICT: Pre-Depression Investigation of Cloud-systems in the Tropics (PREDICT) SOCRATES: Southern Ocean Clouds Radiation Aerosol Transport Experimental Study PLOWS: Profiling of Winter Storms SNOWIE: Seeded and Natural Orographic Wintertime clouds - the Idaho Experiment ICE-L: Ice in Clouds Experiment (ICE-L) VORTEX2: Verification of the Origins of Rotation in Tornadoes Experiment 2 MATERHORN-X: Mountain Terrain Atmospheric Modeling and Observations HAIC-HIWC_2015: High Altitude Ice Crystals - High Ice Water Content Project - 2015 HIWC-RADAR-2018: High Ice Water Content (HIWC) Radar Study 2018 IDEAL: Instabilities, Dynamics and Energetics accompanying Atmospheric Layering Meso18-19: Verification of the Origins of Rotation in Tornadoes EXperiment-Southeast (VORTEX-SE) Meso18-19 TCI: Tropical Cyclone Intensity Experiment VORTEX-SE_2016: Verification of the Origins of Rotation in Tornadoes EXperiment-Southeast (VORTEX-SE) 2016 Field Campaign BACS: BioAerosols and Convective Storms SAS: The Southeast Atmosphere Study DEEPWAVE: Deep Propagating Gravity Wave Experiment over New Zealand VERTEX: Vertical Enhanced Mixing Experiment WINTER: Wintertime Investigation of Transport, Emission, and Reactivity Operational: Operational Datasets TORERO: Tropical Ocean tRoposphere Exchange of Reactive halogen species and Oxygenated VOC DC3: Deep Convective Clouds & Chemistry Project CuPIDO: Cumulus Photogrammetric, In-Situ and Doppler Observations PERiLS_2023: Propagation, Evolution and Rotation in Linear Storms 2023 ORCAS: The O2/N2 Ratio and CO2 Airborne Southern Ocean (ORCAS) Study M2HATS: Multi-point Monin-Obukhov Similarity Horizontal Array Turbulence Study ICE-T: Ice in Clouds Experiment - Tropical CFACT: Cold Fog Amongst Complex Terrain NAME: North American Monsoon Experiment SAVANT: Stable Air Variability and Transport VORTEX-SE_2018: The Verification of the Origins of Rotation in Tornadoes Experiment Southeast (VORTEX-SE) 2018 Field campaign CONTRAST: Convective Transport of Active Species in the Tropics CHEESEHEAD: Chequamegon Heterogeneous Ecosystem Energy-balance Study Enabled by a High-density Extensive Array of Detectors ITOP: Impact of Typhoons on the Ocean in the Pacific DYNAMO: Dynamics of the Madden-Julian Oscillation HAIC-HIWC: High Altitude Ice Crystals - High Ice Water Content Project 2014 VORTEX-SE_2017: Verification of the Origins of Rotation in Tornadoes EXperiment-Southeast (VORTEX-SE) 2017 Field Campaign MPEX: Mesoscale Predictability Experiment PECAN: Plains Elevated Convection at Night T-PARC: THORPEX Pacific Asian Regional Campaign (T-PARC) OTREC: Organization of Tropical East Pacific Convection DELTA: Detecting and Evaluating Low-level Tornado Attributes CSET: Cloud System Evolution in the Trades Perdigao: Perdigao Field Experiment SWEX: Sundowner Winds Experiment RAINEX: Hurricane Rainband and Intensity Change Experiment RELAMPAGO: Remote sensing of Electrification, Lightning, And Mesoscale/microscale Processes with Adaptive Ground Observations PERiLS_2022: Propagation, Evolution and Rotation in Linear Storms 2022 OWLeS: Ontario Winter Lake-effect Systems TORUS_2019: Targeted Observation by Radars and UAS of Supercells 2019
Spatial Type	point
Frequency	3 hourly
Language	English
Categories	Land Based Mesonet Meteorology Surface
Platforms	Weather Stations
Instruments	Automated Weather System
GCMD Science Keywords	AIR TEMPERATURE CLOUD BASE HEIGHT CLOUD FRACTION DEW POINT TEMPERATURE DEW POINT TEMPERATURE PRECIPITATION AMOUNT PRESENT WEATHER PRESSURE TENDENCY SEA LEVEL PRESSURE SURFACE PRESSURE VISIBILITY WIND DIRECTION WIND SPEED Show 10 more... Expand keywords
Documentation	GTS_LDM_surface_synoptic.html [1 KiB]
Related links	companion: 100.028: MADIS GTS METAR Data companion: 100.013: Global GTS Surface METAR Data in ASCII format

Temporal coverage

Begin datetime	2000-03-17 00:00:00
End datetime	2024-05-21 23:59:59

Spatial coverage

Map data from IBCSO, IBCAO, and Global Topography.

Maximum (North) Latitude: 90.00, Minimum (South) Latitude: -90.00
Minimum (West) Longitude: -180.00, Maximum (East) Longitude: 180.00

Primary point of contact information

EOL Data Support <datahelp@eol.ucar.edu>

Additional contact information

author: National Weather Service (NWS)

Citation

National Weather Service (NWS). 2011. Global GTS Surface Synoptic Observations in GEMPAK Format. Version 1.0. UCAR/NCAR - Earth Observing Laboratory. https://doi.org/10.26023/Y3S2-C3VV-ZP0H. Accessed 19 Apr 2025.

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