[Parameters: Topic='ATMOSPHERE', Term='ATMOSPHERIC WINDS', Variable_Level_1='VORTICITY']
Vorticity ChartsEntry ID: gov.noaa.ncdc.C00110
Abstract: Vorticity Charts are historical charts archived at the National Climatic Data Center (NCDC). These computer-produced charts were prepared by the National Weather Service and archived on 35-mm microfilm by the NCDC. The charts for 1961 are archived on one reel of microfilm. Subsequent charts are archived on two reels of microfilm for each year. The mean relative humidity/vertical velocity charts ... are included on these reels of microfilm. Charts were produced twice daily, 0000 and 1200 GMT. Initial analyses are 12, 24, and 36 hour prognosis. The basis for these charts is the seven-layer (FE) numerical prediction model. The 500-millibar contours are depicted as dashed lines at 60 meter intervals and are labeled by three- digit white numbers on a black background. Circulation centers are indicated by 'H' for high and 'L' for low. Centers are located by an 'x' within a circle and labeled by three-digit hollow numbers in decameters. The location points of 500-millibar absolute vorticity isopleths are drawn as solid lines at intervals of 2 x 10 (-5) sec (-1). Absolute vorticity isopleths are labeled 2, 4, 6, etc., multiples of 10 (-5) sec (-1). Centers of positive absolute vorticity are indicated by an 'x' and negative absolute vorticity by an 'n'.
Purpose: To make a wide range of climatic data available to researchers and the public.
SUPPLEMENTAL INFORMATION: chart
CURRENTNESS REFERENCE: Ground Condition
(Click for Interactive Map)
Data Set Citation
Dataset Originator/Creator: National Climatic Data Center, NESDIS, NOAA, U.S. Department of Commerce
Dataset Title: Vorticity Charts
Dataset Release Date: Unknown
Dataset Release Place: Asheville, NC
Dataset Publisher: National Climatic Data Center
Data Presentation Form: chartOnline Resource: http://www.ncdc.noaa.gov
Start Date: 1961-05-01Stop Date: 1992-12-31
Quality ATTRIBUTE ACCURACY REPORT: Not provided
LOGICAL CONSISTENCY REPORT: Unknown
COMPLETENESS REPORT: Completeness information not available.
PROCESS DESCRIPTION: Unknown
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
Data Set Progress
Role: DIF AUTHOR
Email: ncdc.orders at noaa.gov
151 Patton Avenue, Room 120
Province or State: NC
Postal Code: 28801-5001
Creation and Review Dates
DIF Creation Date: 2006-06-27
Last DIF Revision Date: 2009-04-20