Enhanced thermodynamic drivers of recent ENSO teleconnections
Data files
Feb 13, 2025 version files 180.03 KB
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DataRepository_EnhancedThermodynamicDriversOfRecentENSOTeleconnections.xlsx
119.14 KB
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PrecipitationData.zip
54.63 KB
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README.md
6.26 KB
Feb 27, 2025 version files 180.22 KB
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DataRepository_EnhancedThermodynamicDriversOfRecentENSOTeleconnections.xlsx
119.14 KB
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PrecipitationData.zip
54.63 KB
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README.md
6.46 KB
Abstract
The magnitude of western and central Pacific atmospheric heating, precipitation and total precipitable water extremes provide a valuable means of measuring the strength of El Nino and La Nina events in a warming world. This data set brings together information from eight different sources: This data set draws from eight widely used sources:
1. The NOAA Extended Reconstruction sea surface temperature data set (version 5), 2. ERA5 Reanalysis atmospheric heating, precipitation and total precipitable water,
3. MERRA2 Reanalysis atmospheric heating, precipitation and total precipitable water, 4. JRA55 Reanalysis precipitation and total precipitable water,
5. NCEP2 Reanalysis precipitation and total precipitable water, 6. NOAA Physical Sciences Division CAM5.1 precipitation, 7. Global Precipitation Climatology Project version 3.2 precipitation, and 8. Remote Sensing Systems total precipitable water. These seasonal time series can be used to confirm that the atmospheric forcing associated with El Nino-Southern Oscillation events is increasing magnitude. Monthly time series were extracted for the specified regions of interest (i.e., the tropical Western Pacific and the equatorial Central Pacific). Averaging was used to translate the monthly time series into four three-month season time series.
This data set contains the time series supporting the major results presented in 'Enhanced Thermodynamic Drivers Of Recent ENSO Teleconnections'.
The bulk of the major findings are based on time-series, and hence easily verified by readers and reviewers.
This data set draws from five widely used sources:
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The NOAA Extended Reconstruction sea surface temperature data set (version 5):
Boyin Huang, Peter W. Thorne, Viva F. Banzon, Tim Boyer, Gennady Chepurin, Jay H. Lawrimore, Matthew J. Menne, Thomas M. Smith, Russell S. Vose, and Huai-Min Zhang (2017): NOAA Extended Reconstructed Sea Surface Temperature (ERSST), Version 5. NOAA National Centers for Environmental Information. DOI:10.7289/V5T72FNM.
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ERA5 Reanalysis atmospheric heating, precipitation and total precipitable water:
Hersbach, H., et al. (2017): Complete ERA5 from 1940: Fifth generation of ECMWF atmospheric reanalyses of the global climate. Copernicus Climate Change Service (C3S) Data Store (CDS). DOI: 10.24381/cds.143582cf
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MERRA2 Reanalysis atmospheric heating, precipitation and total precipitable water:
Gelaro, R., et al. (2017): The Modern-Era Retrospective Analysis for Research and Applications, Version 2 (MERRA-2). Journal of Climate, 30, 5419-5454. DOI:[10.1175/JCLI-D-16-0758.1]
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JRA55 Reanalysis precipitation and total precipitable water:
Kobayashi et al. (2015): The JRA-55 Reanalysis: General Specifications and Basic Characteristics. J. Met. Soc. Jap., 93(1), 5-48 (DOI: 10.2151/jmsj.2015-001).
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NCEP2 Reanalysis precipitation and total precipitable water:
Kanamitsu, M. et al. (2002): NCEP-DOE AMIP-ii reanalysis (r-2). Bulletin of the American Meteorological Society, 83(11), 1631-1644. DOI:[10.1175/BAMS-83-11-1631]
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NOAA Physical Sciences Division CAM5.1 precipitation
Neale, R. B., et al., (2012) Description of the NCAR Community Atmosphere Model (CAM 5.0), NCAR Tech. Note NCAR/TN-486+STR, 289 pp., Natl. Cent. for Atmos. Res, Boulder, Colo.
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Global Precipitation Climatology Project version 3.2 precipitation
Huffman et al. (2023): The new version 3.2 global precipitation climatology project (GPCP) monthly and daily precipitation products. Journal of Climate, 36(21), 7635-7655. DOI:[10.1175/JCLI-D-23-0123.1]
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Remote Sensing Systems total precipitable water
Wentz, FJ, (2015): A 17-yr Climate Record of Environmental Parameters Derived from the Tropical Rainfall Measuring Mission (TRMM) Microwave Imager, Journal of Climate, vol. 28, pg. 6882-6902. DOI:[10.1175/JCLI-D-15-0155.1]
Data Files
The data are provided as separate CSV files in a zip file titled PrecipitationData.zip which contains two folders "CentralPacific" and "WestPacific". Each folder contain files named with the abbreviation representing the region where the precipitation data refers to and as specified below. Each file contains records for specific years and data organized by trimester (e.g., JFM for January to March). Z-scores and anomalies are calculated relative to a baseline period from 1950 to 2023. Missing data are indicated by blank cells. OctToJun column contains data averaged over three seasons - OND of Year 1, JFM of Year 2, and AMJ of Year 2. This captures the typical period of the onset and decay of El Nino and La Nina events.
Central Pacific
- CP-ERAAHeatingAnomalies.csv - ERA5 Atm Heating Anomalies in Terawatts
- CP-ERAPrecipitableWater.csv - ERA5 Precipitable Water (kg m-2)
- CP-ERAPrecipitationRate.csv - ERA5 Precipitation Rate (mm/day)
- CP-GPCPPrecipitationRate.csv - GPCP3.2 Precipitation Rate (mm/day)
- CP-JRAPrecipitableWater.csv - JRA55 Precipitable Water (kg m-2)
- CP-JRAPrecipitationRate.csv - JRA55 Precipitation Rate (mm/day)
- CP-MERRAHeatingAnomalies.csv - MERRA2 Atm Heating Anomalies in Terawatts
- CP-MERRAPrecipitableWater.csv - MERRA2 Precipitable Water (kg m-2)
- CP-MERRAPrecipitationRate.csv - MERRA2 Precipitation Rate (mm/day)
- CP-NCEPReanalysisPrecipitable.csv - NCEP Reanalysis2 Precipitable Water (kg m-2)
- CP-NCEPReanalysisPrecipitation.csv - NCEP Reanalysis2 Precipitation Rate (mm/day)
- CP-NOAAExtendedReconstruction.csv - NOAA Extended Reconstruction v5 Nino3.4 SST (Z-scores)
- CP-PSDCAMPrecipitableWater.csv - PSD CAM5.1 Precipitable Water (kg m-2)
- CP-PSDCAMPrecipitationRate.csv - PSD CAM5.1 Precipitation Rate (mm/day)
- CP-REMSSPrecipitableWater.csv - REMSS Precipitable Water (kg m-2)
West Pacific
- WP-ERAHeatingAnomalies.csv - ERA5 Atm Heating Anomalies in Terawatts
- WP-ERAPrecipitableWater.csv - ERA5 Precipitable Water (kg m-2)
- WP-ERAPrecipitationRate.csv - ERA5 Precipitation Rate (mm/day)
- WP-GPCPPrecipitationRate.csv - GPCP3.2 Precipitation Rate (mm/day)
- WP-JRAPrecipitableWater.csv - JRA55 Precipitable Water (kg m-2)
- WP-JRAPrecipitationRate.csv - JRA55 Precipitation Rate (mm/day)
- WP-MERRAAtmHeatingAnomalies.csv - MERRA2 Atm Heating Anomalies in Terawatts
- WP-MERRAPrecipitableWater.csv - MERRA2 Precipitable Water (kg m-2)
- WP-MERRAPrecipitation.csv - MERRA2 Precipitation (mm/day)
- WP-NCEPReanalysisPrecipitable.csv - NCEP Reanalysis2 Precipitation Rate (mm/day)
- WP-NCEPReanalysisPrecipitation.csv - NCEP Reanalysis2 Precipitation Rate (mm/day)
- WP-NOAAERWesternVGradient.csv - NOAA ERv5 Western V Gradient (Z-scores)
- WP-NOAAERWesternVSST.csv - NOAA ERv5 Western V SST (Z -scores)
- WP-PSDCAMPrecipitableWater.csv - PSD CAM5.1 Precipitable Water (kg m-2)
- WP-PSDCAMPrecipitationRate.csv - PSD CAM5.1 Precipitation Rate (mm/day)
- WP-REMSSPrecipitableWater.csv - REMSS Precipitable Water (kg m-2)
Alternatively, the data is complied in an Excel spreadsheet Dataset_EnhancedThermodynamicDriversOfRecentENSOTeleconnections.xls and organized into the following tabs:
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WestPacPrecipTimeSeries
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This tab lists seasonal sea surface temperarature, atmospheric heating, precipitation and precipitable water time series related to the West Pacific and Warm Pool.
The Warm Pool region extends from 15S to 15N and 90E to 150E
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CentralPacPrecipTimeSeries
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This tab lists seasonal sea surface temperarature, atmospheric heating, precipitation and precipitable water time series related to the Central Pacific.
The Central Pacific region extends from 8S to 6N and 160E to 140W