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SAFARI 2000 Modeled Tropospheric Air Mass Trajectories, Dry Season 2000

Overview

Data setSAFARI 2000 Modeled Tropospheric Air Mass Trajectories, Dry Season 2000
DOIhttps://doi.org/10.3334/ORNLDAAC/792
Release date2005-06-01
ProjectSouthern African Regional Science Initiative Project (SAFARI 2000)
Time period2000-08-14

Usage Metrics

CountEarliest DateLatest DateData Usage
Downloads822007-12-072017-03-161418 total files downloaded

Description

The ETA Forecast Trajectory Model was used to produce forecasts of air-parcel trajectories twice a day at three pressure levels over seven sites in Southern Africa for the period August 14, 2000 to September 23, 2000. These sites are Durban, Middleburg, Pietersburg, and Springbok, South Africa; Maun, Botswana; Mongu, Zambia; and Windhoek, Namibia. The twice daily three-dimensional wind field (at 0000 and 1200 UTC) was used as input to the trajectory model. By integrating the vertical motion of the air parcels over a period of time, the trajectory model was able to forecast the net vertical displacement of air parcels during 12-hour periods. The resulting trajectory plots represent the three-dimensional transport of air in time and can be used to examine what is happening in the low-to-mid troposphere during flight and ground-based observations. These levels are most significant in terms of the thermodynamic structure of the troposphere, especially the stable layers and accumulation of material between and below them, as well containing the major levels of subsidence over the subcontinent. The trajectory model output and thermodynamic profiles of the troposphere were used to position aircraft for sampling trace gases, aerosols and other species during the SAFARI 2000 field campaign and to predict regions of high aerosol and trace gas concentrations downwind.The model output data are daily forward and backward trajectory plots at 850 hPa, 700 hPa, and 500 hPa pressure levels for each location. The plots are provided as JPEG images with coordinate, date, and time stamps.

Data set documentation

Citation

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Crosscite Citation Formatter
Freiman, T. 2005. SAFARI 2000 Modeled Tropospheric Air Mass Trajectories, Dry Season 2000. ORNL DAAC, Oak Ridge, Tennessee, USA. https://doi.org/10.3334/ORNLDAAC/792

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Data Files

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Data File (Granule)File SizeDatesLatitudeLongitude
durban_plots.zip 11.9MB 2000-08-14 to 2000-09-23 30.00S31.00E
maun_plots.zip 13.2MB 2000-08-14 to 2000-09-23 20.00S23.40E
middleburg_plots.zip 13.2MB 2000-08-14 to 2000-09-23 25.80S29.30E
mongu_plots.zip 12.8MB 2000-08-14 to 2000-09-23 15.30S23.20E
pietersburg_plots.zip 14.0MB 2000-08-14 to 2000-09-23 23.90S29.50E
plots_20000814.zip 937.3KB 2000-08-14 15.30S to 30.00S31.00E to 17.10E
plots_20000815.zip 939.2KB 2000-08-15 15.30S to 30.00S31.00E to 17.10E
plots_20000816.zip 932.3KB 2000-08-16 15.30S to 30.00S31.00E to 17.10E
plots_20000817.zip 2.5MB 2000-08-17 15.30S to 30.00S31.00E to 17.10E
plots_20000818.zip 2.6MB 2000-08-18 15.30S to 30.00S31.00E to 17.10E
plots_20000819.zip 2.6MB 2000-08-19 15.30S to 30.00S31.00E to 17.10E
plots_20000820.zip 1.3MB 2000-08-20 15.30S to 30.00S31.00E to 17.10E
plots_20000821.zip 2.6MB 2000-08-21 15.30S to 30.00S31.00E to 17.10E
plots_20000822.zip 2.7MB 2000-08-22 15.30S to 30.00S31.00E to 17.10E
plots_20000823.zip 2.6MB 2000-08-23 15.30S to 30.00S31.00E to 17.10E
plots_20000824.zip 2.6MB 2000-08-24 15.30S to 30.00S31.00E to 17.10E
plots_20000825.zip 2.6MB 2000-08-25 15.30S to 30.00S31.00E to 17.10E
plots_20000826.zip 2.6MB 2000-08-26 15.30S to 30.00S31.00E to 17.10E
plots_20000827.zip 2.6MB 2000-08-27 15.30S to 30.00S31.00E to 17.10E
plots_20000828.zip 2.6MB 2000-08-28 15.30S to 30.00S31.00E to 17.10E
plots_20000829.zip 366.1KB 2000-08-29 15.30S to 30.00S31.00E to 17.10E
plots_20000830.zip 2.6MB 2000-08-30 15.30S to 30.00S31.00E to 17.10E
plots_20000831.zip 2.6MB 2000-08-31 15.30S to 30.00S31.00E to 17.10E
plots_20000901.zip 2.6MB 2000-09-01 15.30S to 30.00S31.00E to 17.10E
plots_20000902.zip 2.6MB 2000-09-02 15.30S to 30.00S31.00E to 17.10E
plots_20000903.zip 2.6MB 2000-09-03 15.30S to 30.00S31.00E to 17.10E
plots_20000904.zip 2.6MB 2000-09-04 15.30S to 30.00S31.00E to 17.10E
plots_20000905.zip 2.6MB 2000-09-05 15.30S to 30.00S31.00E to 17.10E
plots_20000906.zip 2.6MB 2000-09-06 15.30S to 30.00S31.00E to 17.10E
plots_20000907.zip 2.7MB 2000-09-07 15.30S to 30.00S31.00E to 17.10E
plots_20000908.zip 2.7MB 2000-09-08 15.30S to 30.00S31.00E to 17.10E
plots_20000909.zip 2.6MB 2000-09-09 15.30S to 30.00S31.00E to 17.10E
plots_20000910.zip 2.7MB 2000-09-10 15.30S to 30.00S31.00E to 17.10E
plots_20000911.zip 2.7MB 2000-09-11 15.30S to 30.00S31.00E to 17.10E
plots_20000912.zip 1.7MB 2000-09-12 15.30S to 30.00S31.00E to 17.10E
plots_20000914.zip 2.7MB 2000-09-14 15.30S to 30.00S31.00E to 17.10E
plots_20000915.zip 2.7MB 2000-09-15 15.30S to 30.00S31.00E to 17.10E
plots_20000916.zip 2.6MB 2000-09-16 15.30S to 30.00S31.00E to 17.10E
plots_20000917.zip 2.6MB 2000-09-17 15.30S to 30.00S31.00E to 17.10E
plots_20000920.zip 2.6MB 2000-09-20 15.30S to 30.00S31.00E to 17.10E
plots_20000921.zip 2.7MB 2000-09-21 15.30S to 30.00S31.00E to 17.10E
plots_20000922.zip 2.6MB 2000-09-22 15.30S to 30.00S31.00E to 17.10E
plots_20000923.zip 1.9MB 2000-09-23 15.30S to 30.00S31.00E to 17.10E
springbok_plots.zip 11.7MB 2000-08-14 to 2000-09-23 29.70S17.80E
windhoek_plots.zip 12.3MB 2000-08-14 to 2000-09-23 22.60S17.10E

Companion Files

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Data set has 3 companion files.

  • trajectory_images_readme.pdf
  • synoptic_data.csv
  • all_templates.zip