Dataset Open Access

Optimal Integration Times for Lagrangian Studies of Atmospheric Moisture Sources and Sinks

Raquel Nieto; Luis Gimeno

Lagrangian methods for estimating sources and sinks of water vapour have increased in importance in recent years, with hundreds of publications over the past decade on this topic. Results derived from these approaches are, however, very sensitive to the integration time of the trajectories used in the analysis. The most widely used integration time is that derived from the average residence time of water vapour in the atmosphere, normally considered to be around 10 days. 

In this database, we provide two versions of the Optimal Integration Times (OPTs) for a spatial resolution of 0.25º x 0.25º in latitude and longitude using data from the European Centre for Medium-Range Weather Forecasts (ECMWF) Interim Re-Analysis (ERA-Interim) for Lagrangian Studies of Atmospheric Moisture Sources and Sinks:

Version 1:  includes the climatological annual and monthly Optimal Integration Times (OPTs) for the period 1980-2015. This database version 1 is completely described in: R. NietoL. Gimeno (2019) A database of optimal integration times for Lagrangian studies of atmospheric moisture sources and sinks, Scientific Data 6, 1-10, https://doi.org/10.1038/s41597-019-0068-8 and you should reference it directly.

Version 2 provides the OPTs month-by-month with widespread temporal coverage from January 1980 - December 2018. The OPTs are provided as an individual monthly dataset. This version 2 is described in an Addendum in Scientific Data (under review).

Files (2.0 GB)
Name Size
OPT_01.nc
md5:0495f5716f5c79185a411b2b811de0c0
2.1 MB Download
OPT_01_1980-2018.nc
md5:43d21a7fd8ae5cea520a0a3f0343aa12
161.8 MB Download
OPT_02.nc
md5:8e5e8c00becf05867822830a7362d515
2.1 MB Download
OPT_02_1980-2018.nc
md5:8ca15a6969339e93a029b87f2a929b4a
161.8 MB Download
OPT_03.nc
md5:dad8a3751c1df9a3ab81d3593661c550
2.1 MB Download
OPT_03_1980-2018.nc
md5:c5e7bfa62371d50b05613fb0f36fdd5a
161.8 MB Download
OPT_04.nc
md5:eeed45f963d6cb934e98be760f8d7aff
2.1 MB Download
OPT_04_1980-2018.nc
md5:7ed6071e1215099028d6bc1f5a73fac7
161.8 MB Download
OPT_05.nc
md5:50d82ee61e60d5694b134caf2fff6370
2.1 MB Download
OPT_05_1980-2018.nc
md5:8faf4a401ecb86d807121ad3fba38773
161.8 MB Download
OPT_06.nc
md5:278600d74e6660f8119a05077a1be8d6
2.1 MB Download
OPT_06_1980-2018.nc
md5:a2692048f742b4dbf084807ff5525860
161.8 MB Download
OPT_07.nc
md5:97f17cbb7db630799b1ce43b5f086719
2.1 MB Download
OPT_07_1980-2018.nc
md5:4c4d845d700117faf25e5f5e7f2db252
161.8 MB Download
OPT_08.nc
md5:fd325828577ab893175ace4b703e07b7
2.1 MB Download
OPT_08_1980-2018.nc
md5:5c26d06497751b1617094560965d504c
161.8 MB Download
OPT_09.nc
md5:fb2c4d8cd55e4570f711ead3b59f45ac
2.1 MB Download
OPT_09_1980-2018.nc
md5:f8bbd19da206395d0a82c14289951629
161.8 MB Download
OPT_10.nc
md5:66a238d7d5a622a20c0f8b4c18e035b9
2.1 MB Download
OPT_10_1980-2018.nc
md5:2a490953277ee5718fd8c6f5f77ccc51
161.8 MB Download
OPT_11.nc
md5:5229da5fd92819f42b39cf8400511172
2.1 MB Download
OPT_11_1980-2018.nc
md5:a84f1fa4436888d5287877b122826b57
161.8 MB Download
OPT_12.nc
md5:20b153d0f5ac9424d6d0a9e6c2d40278
2.1 MB Download
OPT_12_1980-2018.nc
md5:e4934adec107833d2d4af511eeca31b8
161.8 MB Download
OPT_ANNUAL.nc
md5:220fc025a14696723b4826d0ecf71d40
2.1 MB Download
Readme.pdf
md5:d2e3093c0764e2fcc0ba809555433167
92.5 kB Download
  • R. Nieto, L. Gimeno (2019) A database of optimal integration times for Lagrangian studies of atmospheric moisture sources and sinks, Scientific Data, May, Vol. 6, Pages 1-10, DOI: https://doi.org/10.1038/s41597-019-0068-8

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