Dataset Open Access
Global track dataset of monsoon low pressure systems
S, Vishnu;
W. R. Boos;
P. A. Ullrich;
T. A. O'Brien
MARC21 XML Export
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<subfield code="x">Vishnu, S., Boos, W.R., Ullrich, P.A.& O'Brien, T.A., 2020. Assessing Historical Variability of South Asian Monsoon Lows and Depressions With an Optimized Tracking Algorithm. Journal of Geophysical Research: Atmospheres, 125(15), p.e2020JD032977.</subfield>
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<subfield code="a">Global track dataset of monsoon low pressure systems</subfield>
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<subfield code="a"><p>This dataset contains the tracks and intensities of low pressure system (LPS) in the global tropics (35&ordm;S-35&ordm;N), as identified in five atmospheric reanalyses (ERA5, ERA-Interim, JRA55, MERRA2, and CFSR) using the algorithm described in the paper titled&nbsp;<strong>Assessing historical variability of South Asian monsoon lows and depressions with an optimized tracking algorithm</strong>.&nbsp; Tracking of LPS was performed using an automated Lagrangian pointwise feature tracker, TempestExtremes (Ullrich &amp; Zarzycki, 2017), with criteria chosen to best match a subjectively analyzed LPS dataset while minimizing disagreement&nbsp; between four atmospheric reanalyses. A full description of the algorithm and dataset is described in the preprint *(<a href="https://doi.org/10.1029/2020JD032977">https://doi.org/10.1029/2020JD032977</a>)</p>
<p>&nbsp;</p>
<p><strong>Files:</strong></p>
<ul>
<li><em><strong>Header.txt</strong>: contains the names of columns of the LPS dataset files</em></li>
<li><em><strong>LPS_Global_ERA5.dat</strong>: LPS track file for ERA5, 1979-2019, hourly resolution</em></li>
<li><em><strong>LPS_Global_ERA-Interim.dat</strong>: LPS track file for ERA-Interim, 1979-2018, six-hourly resolution</em></li>
<li><em><strong>LPS_Global_JRA55.dat</strong>: LPS track file for JRA55, 1958-2019, six-hourly resolution</em></li>
<li><em><strong>LPS_Global_CFSR.dat</strong>: LPS track file for CFSR, 1979-2010, six-hourly&nbsp;resolution</em></li>
<li><em><strong>LPS_Global_MERRA2.dat</strong>: LPS track file for MERRA2, 1980-2019, three-hourly resolution</em></li>
</ul>
<p><strong>Script:</strong></p>
<ul>
<li><em><strong>Run_tempest_lps.sh</strong>: TempestExtremes script to track LPS in reanalysis dataset.&nbsp;</em></li>
</ul>
<p>Additionally, four python scripts are available to subset the dataset:</p>
<ol>
<li><em><strong>Python_Moist_LPS_heat_low.py</strong>: Python script to create two separate files for&nbsp; moist LPS and heat lows</em></li>
<li><em><strong>Python_Low_Depression.py</strong>: Python script to create two separate files for monsoon lows and monsoon depressions</em></li>
<li><em><strong>Python_Region.py</strong>: Python script to create a separate file for a region</em></li>
<li><em><strong>Python_Season.py</strong>: Python script to create a separate file for a season</em></li>
</ol>
<p>Note: The TempestExtremes software can be obtained from GitHub at <a href="https://github.com/ClimateGlobalChange/tempestextremes">https://github.com/ClimateGlobalChange/tempestextremes</a>.</p>
<p>For further details, contact S. Vishnu (<em>vishnuedv@gmail.com</em>) or William R Boos&nbsp; (<em>billboos@alum.mit.edu</em>).</p></subfield>
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591
503
views
downloads
| All versions | This version | |
|---|---|---|
| Views | 591 | 591 |
| Downloads | 503 | 503 |
| Data volume | 29.1 GB | 29.1 GB |
| Unique views | 513 | 513 |
| Unique downloads | 146 | 146 |
Indexed in
- Publication date:
- June 12, 2020
- DOI:
-
- Keyword(s):
- Low Pressure System Track data Heat low Tropical storm TempestExtremes Monsoon depression
- License (for files):
- Creative Commons Attribution 4.0 International