skip to main content
DOE PAGES title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: The Green Ocean: Precipitation Insights from the GoAmazon2014/5 Experiment

Abstract

This study summarizes the precipitation properties collected during the GoAmazon2014/5 campaign near Manaus in central Amazonia, Brazil. Precipitation breakdowns, summary radar rainfall relationships and self-consistency concepts from a coupled disdrometer and radar wind profiler measurements are presented. The properties of Amazon cumulus and associated stratiform precipitation are discussed, including segregations according to seasonal (Wet/Dry regime) variability, cloud echo-top height and possible aerosol influences on the apparent oceanic characteristics of the precipitation drop size distributions. Overall, we observe that the Amazon precipitation straddles behaviors found during previous U.S. Department of Energy Atmospheric Radiation Measurements program (ARM) tropical deployments, with distributions favoring higher concentrations of smaller drops than ARM continental examples. Oceanic type precipitation characteristics are predominantly observed during the Amazon Wet seasons. Finally, an exploration of the controls on Wet season precipitation properties reveals that wind direction, as compared with other standard radiosonde thermodynamic parameters or aerosol count/regime classifications performed at the ARM site, provides a good indicator for those Wet season Amazon events having an oceanic character for their precipitation drop size distributions.

Authors:
 [1]; ORCiD logo [1];  [1]; ORCiD logo [2]; ORCiD logo [2];  [3]; ORCiD logo [4]
  1. Brookhaven National Lab. (BNL), Upton, NY (United States). Environmental and Climate Sciences Dept.
  2. Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
  3. Snow College, Richfield, UT (United States). Dept. of Chemistry
  4. National Inst. for Space Research, Sao Jose dos Campos (Brazil)
Publication Date:
Research Org.:
Brookhaven National Lab. (BNL), Upton, NY (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Biological and Environmental Research (BER) (SC-23)
OSTI Identifier:
1454804
Report Number(s):
BNL-205773-2018-JAAM
Journal ID: ISSN 1680-7375
Grant/Contract Number:  
SC0012704
Resource Type:
Accepted Manuscript
Journal Name:
Atmospheric Chemistry and Physics Discussions (Online)
Additional Journal Information:
Journal Name: Atmospheric Chemistry and Physics Discussions (Online); Journal Volume: 18; Journal Issue: 12; Journal ID: ISSN 1680-7375
Publisher:
European Geosciences Union
Country of Publication:
United States
Language:
English
Subject:
54 ENVIRONMENTAL SCIENCES

Citation Formats

Wang, Die, Giangrande, Scott E., Bartholomew, Mary Jane, Hardin, Joseph, Feng, Zhe, Thalman, Ryan, and Machado, Luiz A. The Green Ocean: Precipitation Insights from the GoAmazon2014/5 Experiment. United States: N. p., 2018. Web. doi:10.5194/acp-2018-101.
Wang, Die, Giangrande, Scott E., Bartholomew, Mary Jane, Hardin, Joseph, Feng, Zhe, Thalman, Ryan, & Machado, Luiz A. The Green Ocean: Precipitation Insights from the GoAmazon2014/5 Experiment. United States. doi:10.5194/acp-2018-101.
Wang, Die, Giangrande, Scott E., Bartholomew, Mary Jane, Hardin, Joseph, Feng, Zhe, Thalman, Ryan, and Machado, Luiz A. Fri . "The Green Ocean: Precipitation Insights from the GoAmazon2014/5 Experiment". United States. doi:10.5194/acp-2018-101. https://www.osti.gov/servlets/purl/1454804.
@article{osti_1454804,
title = {The Green Ocean: Precipitation Insights from the GoAmazon2014/5 Experiment},
author = {Wang, Die and Giangrande, Scott E. and Bartholomew, Mary Jane and Hardin, Joseph and Feng, Zhe and Thalman, Ryan and Machado, Luiz A.},
abstractNote = {This study summarizes the precipitation properties collected during the GoAmazon2014/5 campaign near Manaus in central Amazonia, Brazil. Precipitation breakdowns, summary radar rainfall relationships and self-consistency concepts from a coupled disdrometer and radar wind profiler measurements are presented. The properties of Amazon cumulus and associated stratiform precipitation are discussed, including segregations according to seasonal (Wet/Dry regime) variability, cloud echo-top height and possible aerosol influences on the apparent oceanic characteristics of the precipitation drop size distributions. Overall, we observe that the Amazon precipitation straddles behaviors found during previous U.S. Department of Energy Atmospheric Radiation Measurements program (ARM) tropical deployments, with distributions favoring higher concentrations of smaller drops than ARM continental examples. Oceanic type precipitation characteristics are predominantly observed during the Amazon Wet seasons. Finally, an exploration of the controls on Wet season precipitation properties reveals that wind direction, as compared with other standard radiosonde thermodynamic parameters or aerosol count/regime classifications performed at the ARM site, provides a good indicator for those Wet season Amazon events having an oceanic character for their precipitation drop size distributions.},
doi = {10.5194/acp-2018-101},
journal = {Atmospheric Chemistry and Physics Discussions (Online)},
number = 12,
volume = 18,
place = {United States},
year = {2018},
month = {6}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record

Save / Share:

Works referenced in this record:

Diurnal variation of precipitation in central Amazon Basin
journal, March 2014

  • Tanaka, L. M. d. S.; Satyamurty, P.; Machado, L. A. T.
  • International Journal of Climatology, Vol. 34, Issue 13
  • DOI: 10.1002/joc.3929

Vertical motions of the tropical convective cloud spectrum over Darwin, Australia: Vertical Motions of the Tropical Convective Cloud Spectrum
journal, March 2015

  • Schumacher, Courtney; Stevenson, Stephanie N.; Williams, Christopher R.
  • Quarterly Journal of the Royal Meteorological Society, Vol. 141, Issue 691
  • DOI: 10.1002/qj.2520

Seasonal and diurnal variability of convection over the Amazonia: A comparison of different vegetation types and large scale forcing
journal, April 2004

  • Machado, L. A. T.; Laurent, H.; Dessay, N.
  • Theoretical and Applied Climatology, Vol. 78, Issue 1-3
  • DOI: 10.1007/s00704-004-0044-9

Representing the Sensitivity of Convective Cloud Systems to Tropospheric Humidity in General Circulation Models
journal, September 2011


T-matrix computations of light scattering by nonspherical particles: A review
journal, May 1996

  • Mishchenko, Michael I.; Travis, Larry D.; Mackowski, Daniel W.
  • Journal of Quantitative Spectroscopy and Radiative Transfer, Vol. 55, Issue 5
  • DOI: 10.1016/0022-4073(96)00002-7

The Atmospheric Radiation Measurement Program
journal, January 2003

  • Ackerman, Thomas P.; Stokes, Gerald M.
  • Physics Today, Vol. 56, Issue 1
  • DOI: 10.1063/1.1554135

Self-consistency of polarization diversity measurement of rainfall
journal, January 1996

  • Scarchilli, G.; Gorgucci, V.; Chandrasekar, V.
  • IEEE Transactions on Geoscience and Remote Sensing, Vol. 34, Issue 1
  • DOI: 10.1109/36.481887

Flood or Drought: How Do Aerosols Affect Precipitation?
journal, September 2008


Substantial convection and precipitation enhancements by ultrafine aerosol particles
journal, January 2018


Introduction: Observations and Modeling of the Green Ocean Amazon (GoAmazon2014/5)
journal, January 2016

  • Martin, S. T.; Artaxo, P.; Machado, L. A. T.
  • Atmospheric Chemistry and Physics, Vol. 16, Issue 8
  • DOI: 10.5194/acp-16-4785-2016

Impacts of the Manaus pollution plume on the microphysical properties of Amazonian warm-phase clouds in the wet season
journal, January 2016

  • Cecchini, Micael A.; Machado, Luiz A. T.; Comstock, Jennifer M.
  • Atmospheric Chemistry and Physics, Vol. 16, Issue 11
  • DOI: 10.5194/acp-16-7029-2016

Further evidence for CCN aerosol concentrations determining the height of warm rain and ice initiation in convective clouds over the Amazon basin
journal, January 2017

  • Braga, Ramon Campos; Rosenfeld, Daniel; Weigel, Ralf
  • Atmospheric Chemistry and Physics, Vol. 17, Issue 23
  • DOI: 10.5194/acp-17-14433-2017

Cloud characteristics, thermodynamic controls and radiative impacts during the Observations and Modeling of the Green Ocean Amazon (GoAmazon2014/5) experiment
journal, January 2017

  • Giangrande, Scott E.; Feng, Zhe; Jensen, Michael P.
  • Atmospheric Chemistry and Physics, Vol. 17, Issue 23
  • DOI: 10.5194/acp-17-14519-2017

    Works referencing / citing this record:

    Mesoscale convective systems over the Amazon basin: The GoAmazon2014/5 program
    journal, June 2019

    • Rehbein, Amanda; Ambrizzi, Tercio; Mechoso, Carlos R.
    • International Journal of Climatology, Vol. 39, Issue 15
    • DOI: 10.1002/joc.6173