Radiosonde Atmospheric Temperature Products for Assessing Climate (RATPAC), Version 2
RATPAC 2
The Radiosonde Atmospheric Temperature Products for Assessing Climate (RATPAC) consist of time series of radiosonde-based temperature anomalies for the years 1958-present in which the temporal inhomogeneities resulting from changes in instruments and observing practices have been reduced to the extent possible. Developed through a collaborative effort involving NOAA scientists from the Air Resources Laboratory, the Geophysical Fluid Dynamics Laboratory, and NCEI, the RATPAC time series are based on data from 85 stations distributed around global land areas and are available on 13 atmospheric pressure levels: the surface, 850, 700, 500, 400, 300, 250, 200, 150, 100, 70, 50, and 30 hPa. Two sub-products, RATPAC-A and RATPAC-B, were derived using different approaches to meet this need based largely in part on the Temporal Homogenization of Monthly Radiosonde Temperature Data (LKS) bias-adjusted dataset. RATPAC-A contains adjusted global, hemispheric, tropical, and extratropical mean temperature anomalies. From 1958 through 1995, the bases of the data are on spatial averages of LKS adjusted 87-station temperature data. After 1995, they are based on the Integrated Global Radiosonde Archive (IGRA) station data, combined using a first difference method. RATPAC-B contains data for individual stations as well as large-scale arithmetic averages corresponding to areas used for RATPAC-A. The station data consist of adjusted data produced by LKS for the period 1958-1997 and unadjusted data from IGRA after 1997. The regional mean time series in RATPAC-B are based on arithmetic averaging of these station data, rather than the first difference method used to create RATPAC-A. The difference between this version and the original version of RATPAC is that the IGRA component of Version 2 is taken from IGRA v2 rather than IGRA v1.
Dataset Citation
- Cite as: Durre, Imke; Xungang, Yin; Vose, Russell S.; Applequist, Scott. Radiosonde Atmospheric Temperature Products for Assessing Climate, Version 2. [indicate subset used]. NOAA National Centers for Environmental Information. DOI:10.7289/V5SF2T7J [access date].
Dataset Identifiers
- doi:10.7289/V5SF2T7J
- NCEI DSI 6354_02
- gov.noaa.ncdc:C00978
ISO 19115-2 Metadata
gov.noaa.ncdc:C00978
Download Data |
|
Distribution Formats |
|
Ordering Instructions | Contact NCEI for other distribution options and instructions. |
Distributor |
NOAA National Centers for Environmental Information ncei.info@noaa.gov |
Dataset Point of Contact | Customer Engagement Branch NOAA National Centers for Environmental Information 1-828-271-4800 ncei.orders@noaa.gov |
Time Period | 1958 to Present (time interval: 1-month) |
Spatial Bounding Box Coordinates |
West: -180.0
East: 180.0
South: -90.0
North: 90.0
|
Spatial Coverage Map |
Dataset Information |
|
General Documentation |
|
Processing Documents |
|
Associated Resources |
|
Publication Dates |
|
Edition | Version 2.0 |
Data Presentation Form | Digital table - digital representation of facts or figures systematically displayed, especially in columns |
Dataset Progress Status | Ongoing - data is continually being updated |
Data Update Frequency | Monthly |
Purpose | RATPAC is intended to be used for the assessment of long-term changes in tropospheric and lower-stratospheric temperatures on large spatial scales. For analyses of interannual and longer-term changes in global, hemispheric, and tropical means, use of RATPAC-A is recommended since it contains the most robust large-scale averages. For individual station data, monthly data, or regional means on smaller scales, use of RATPAC-B, is recommended, albeit with careful attention to the potential of inhomogeneities influencing the analysis after 1997. For analyses that require data not included in RATPAC and that are less sensitive to long-term biases, users are referred to the Integrated Global Radiosonde Archive (IGRA). |
Use Limitations |
|
Dataset Citation |
|
Cited Authors |
|
Originators |
|
Collaborators |
|
Publishers |
|
Theme keywords |
Global Change Master Directory (GCMD) Science Keywords
|
Data Center keywords |
Global Change Master Directory (GCMD) Data Center Keywords
|
Platform keywords |
Global Change Master Directory (GCMD) Platform Keywords
|
Instrument keywords |
Global Change Master Directory (GCMD) Instrument Keywords
|
Place keywords |
Global Change Master Directory (GCMD) Location Keywords
|
Data Resolution keywords |
Global Change Master Directory (GCMD) Horizontal Data Resolution Keywords
|
Stratum keywords |
Global Change Master Directory (GCMD) Location Keywords
|
Use Constraints |
|
Access Constraints |
|
Fees |
|
Lineage information for: dataset | |
---|---|
Lineage Statement | The data sources and processing methods are documented in several peer-reviewed papers. |
Processor |
|
Processing Steps |
|
Processing Environment | The data were processed under Linux using several Fortran 77 programs and one bash script. |
Processing Documents |
|
Source Datasets |
|
Lineage information for: repository | |
---|---|
Processing Steps |
|
Last Modified: 2023-06-23
For questions about the information on this page, please email: ncei.info@noaa.gov
For questions about the information on this page, please email: ncei.info@noaa.gov