Global Surface Summary of the Day - GSOD
Entry ID: gov.noaa.ncdc.C00516

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Summary
Abstract: Global Surface Summary of the Day is a product archived at the National Climatic Data Center (NCDC). It is produced by the National Climatic Data Center (NCDC) in Asheville, NC and is derived from The Integrated Surface Hourly (ISH) dataset, DSI-3505 (C00532). The ISH dataset includes global data obtained from the USAF Climatology Center, located in the Federal Climate Complex with NCDC. The latest daily summary data are normally available 1-2 days after the date-time of the observations used in the daily summaries. The online data files begin with 1929 and are at the time of this writing at the Version 8 software level. Over 9000 stations' data are typically available. The daily elements included in the dataset (as available from each station) are: Mean temperature (.1 Fahrenheit) Mean dew point (.1 Fahrenheit) Mean sea level pressure (.1 mb) Mean station pressure (.1 mb) Mean visibility (.1 miles) Mean wind speed (.1 knots) Maximum sustained wind speed (.1 knots) Maximum wind gust (.1 knots) Maximum temperature (.1 Fahrenheit) Minimum temperature (.1 Fahrenheit) Precipitation amount (.01 inches) Snow depth (.1 inches) Indicator for occurrence of: Fog, Rain or Drizzle, Snow or Ice Pellets, Hail, Thunder, Tornado/Funnel Cloud Global summary of day data for 18 surface meteorological elements are derived from the synoptic/hourly observations contained in USAF DATSAV3 Surface data and Federal Climate Complex Integrated Surface Hourly (ISH). Historical data are generally available for 1929 to the present, with data from 1973 to the present being the most complete. For some periods, one or more countries' data may not be available due to data restrictions or communications problems. In deriving the summary of day data, a minimum of 4 observations for the day must be present (allows for stations which report 4 synoptic observations/day). Since the data are converted to constant units (e.g, knots), slight rounding error from the originally reported values may occur (e.g, 9.9 instead of 10.0). The mean daily values described below are based on the hours of operation for the station. For some stations/countries, the visibility will sometimes 'cluster' around a value (such as 10 miles) due to the practice of not reporting visibilities greater than certain distances. The daily extremes and totals--maximum wind gust, precipitation amount, and snow depth--will only appear if the station reports the data sufficiently to provide a valid value. Therefore, these three elements will appear less frequently than other values. Also, these elements are derived from the stations' reports during the day, and may comprise a 24-hour period which includes a portion of the previous day. The data are reported and summarized based on Greenwich Mean Time (GMT, 0000Z - 2359Z) since the original synoptic/hourly data are reported and based on GMT.

Purpose: To make a wide range of climatic data available to researchers and the public.

SUPPLEMENTAL INFORMATION: data set

CURRENTNESS REFERENCE: Ground Condition

Fees, if applicable, are displayed on the web page for obtaining these data; fees are also dependent on customer order specifications. Please contact NCDC for further information on fees and terms for retrieving these data.

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Link: GET DATA
Description: More information and pricing for this dataset


Link: GET DATA
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Link: GET DATA
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Link: VIEW EXTENDED METADATA
Description: View Source Metadata document from the Metadata Manager and Repository (NMMR).


Link: VIEW RELATED INFORMATION
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Link: VIEW RELATED INFORMATION


Geographic Coverage
 N: 90.0 S: -90.0  E: 180.0  W: -180.0

Data Set Citation
Dataset Originator/Creator: National Climatic Data Center, NESDIS, NOAA, U.S. Department of Commerce
Dataset Title: Global Surface Summary of the Day - GSOD
Dataset Release Date: Unknown
Dataset Release Place: Asheville, NC
Dataset Publisher: National Climatic Data Center
Data Presentation Form: Tabular Digital Data
Online Resource: http://www.ncdc.noaa.gov/cgi-bin/res40.pl?page=gsod.html ftp://ftp....


Temporal Coverage
Start Date: 1929-01-01


Location Keywords
GEOGRAPHIC REGION > GLOBAL


Science Keywords
ATMOSPHERE >AIR QUALITY >VISIBILITY    [Definition]
ATMOSPHERE >ATMOSPHERIC ELECTRICITY >LIGHTNING    [Definition]
ATMOSPHERE >ATMOSPHERIC PHENOMENA >CYCLONES    [Definition]
ATMOSPHERE >ATMOSPHERIC PHENOMENA >FOG    [Definition]
ATMOSPHERE >ATMOSPHERIC PHENOMENA >LIGHTNING    [Definition]
ATMOSPHERE >ATMOSPHERIC PHENOMENA >STORMS    [Definition]
ATMOSPHERE >ATMOSPHERIC PHENOMENA >TORNADOES    [Definition]
ATMOSPHERE >ATMOSPHERIC PRESSURE >SEA LEVEL PRESSURE    [Definition]
ATMOSPHERE >ATMOSPHERIC PRESSURE >SURFACE PRESSURE    [Definition]
ATMOSPHERE >ATMOSPHERIC PRESSURE >ATMOSPHERIC PRESSURE MEASUREMENTS    [Definition]
ATMOSPHERE >ATMOSPHERIC TEMPERATURE >AIR TEMPERATURE    [Definition]
ATMOSPHERE >ATMOSPHERIC TEMPERATURE >MAXIMUM/MINIMUM TEMPERATURE    [Definition]
ATMOSPHERE >ATMOSPHERIC WATER VAPOR >DEW POINT TEMPERATURE    [Definition]
ATMOSPHERE >ATMOSPHERIC WINDS >SURFACE WINDS    [Definition]
ATMOSPHERE >PRECIPITATION >FREEZING RAIN    [Definition]
ATMOSPHERE >PRECIPITATION >HAIL    [Definition]
ATMOSPHERE >PRECIPITATION >PRECIPITATION AMOUNT    [Definition]
ATMOSPHERE >PRECIPITATION >RAIN    [Definition]
ATMOSPHERE >PRECIPITATION >SLEET    [Definition]
ATMOSPHERE >PRECIPITATION >SNOW    [Definition]
CRYOSPHERE >SNOW/ICE    [Definition]
TERRESTRIAL HYDROSPHERE >SNOW/ICE    [Definition]
ATMOSPHERE >ATMOSPHERIC TEMPERATURE >DEW POINT TEMPERATURE    [Definition]


ISO Topic Category
CLIMATOLOGY/METEOROLOGY/ATMOSPHERE


Platform
METEOROLOGICAL STATIONS    [Information]


Instrument
ALTIMETERS    [Information]
ANEMOMETERS    [Information]
AWS >Automated Weather System    [Information]
BAROMETERS    [Information]
HYGROMETERS    [Information]
PRESSURE SENSORS
RAIN GAUGES    [Information]
TEMPERATURE SENSORS    [Information]
THERMOMETERS    [Information]
WIND VANES    [Information]
VISUAL OBSERVATIONS    [Information]


Project
ESIP >Earth Science Information Partners Program    [Information]


Quality
ATTRIBUTE ACCURACY REPORT: The input data undergo extensive automated QC to correctly 'decode' as much of the synoptic data as possible, and to eliminate many of the random errors found in the original data. Then, these data are QC'ed further as the summary of day data are derived. However, we expect that a very small % of the errors will remain in the summary of day data.

LOGICAL CONSISTENCY REPORT: Unknown

COMPLETENESS REPORT: Completeness information not available.

LINEAGE/PROCESS STEP:
PROCESS DESCRIPTION: Not derived from another source
PROCESS DATE: Unknown


Access Constraints
ACCESS CONSTRAINTS: None

DISTRIBUTION LIABILITY: Every effort has been made to ensure that these data are accurate and reliable within the limits of current NOAA quality control procedures. NOAA can only certify that the data provided to its customers is an authentic copy of the records which were accepted for inclusion in NOAA archives. NOAA cannot assume liability for any damages caused by any errors or omissions in the data, nor as a result of the failure of the data to function on a particular system. NOAA makes no warranty, expressed or implied, nor does the fact of distribution constitute such a warranty.


Use Constraints
None


Keywords
GLOBAL
GOSIC
G3OS/


Data Set Progress
COMPLETE


Data Center
National Climatic Data Center, NESDIS, NOAA, U.S. Department of Commerce    [Information]
Data Center URL: http://www.ncdc.noaa.gov/

Data Center Personnel
Name: NCDC CUSTOMER SERVICE
Phone: 828-271-4800
Fax: 828-271-4876
Email: ncdc.orders at noaa.gov
Contact Address:
151 Patton Avenue, Room 120
City: Asheville
Province or State: NC
Postal Code: 28801-5001
Country: USA



Distribution
Distribution_Format: ASCII
Fees: Please See Summary

Distribution_Format: ArcIMS

Distribution_Format: Open Geospatial Consortium Web Map Service (WMS)

Distribution_Format: Format Name: Open Geospatial Consortium Web Feature Service (WFS)


Personnel
NCDC CUSTOMER SERVICE
Role: TECHNICAL CONTACT
Phone: 828-271-4800
Fax: 828-271-4876
Email: ncdc.orders at noaa.gov
Contact Address:
151 Patton Avenue, Room 120
City: Asheville
Province or State: NC
Postal Code: 28801-5001
Country: USA


NCDC METADATA SERVICES
Role: DIF AUTHOR
Phone: 828-271-4800
Fax: 828-271-4876
Email: ncdc.metadata at noaa.gov
Contact Address:
151 Patton Avenue
Room 468
City: Asheville
Province or State: North Carolina
Postal Code: 28801-5001
Country: USA



Creation and Review Dates
DIF Creation Date: 2007-10-23
Last DIF Revision Date: 2011-07-21

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