TY - GEN
T1 - Beating of the Amazon
T2 - 2020 Conference on Practice and Experience in Advanced Research Computing: Catch the Wave, PEARC 2020
AU - Bock, David
AU - Dominguez, Francina
AU - Eiras-Barca, Jorge
N1 - Funding Information: Computational resources provided by XSEDE award ATM170030. Dominguez is supported by National Science Foundation (NSF) Funding Information: CAREER Award AGS 1454089. Eiras-Barca was supported by the program ED4181B 2018/069 from the Spanish regional government Xunta 473 de Galicia and the Fulbright Commission (US Department of State). Funding Information: Computational resources provided by XSEDE award ATM170030. Dominguez is supported by National Science Foundation (NSF) CAREER Award AGS 1454089. Eiras-Barca was supported by the program ED4181B 2018/069 from the Spanish regional government Xunta 473 de Galicia and the Fulbright Commission (US Department of State). Publisher Copyright: © 2020 ACM.
PY - 2020/7/26
Y1 - 2020/7/26
N2 - The Amazon rainforest is the largest and most biologically diverse ecosystem in the planet. Moisture-laden tropical winds from the Atlantic Ocean enter the Amazon, bringing precipitation to the forest; the dense canopy then then transpires and contributes water for precipitation downwind. In fact, it has been estimated that between 20% and 40% of Amazonian rain comes from transpiration and evaporation (ET) from the forest itself. However, only recently have we been able to quantify the contribution of Amazonian ET to precipitation. Using the state-of-the art Weather Research and Forecast (WRF) atmospheric model with water tracers, we are able to trace the moisture that originates from the Amazon rainforest. This is analogous to putting dye in the model's hydrologic cycle. By visualizing the output of this model we were able to show, for the first time, that the diurnal cycle of transpiration provides a clear diurnal signal to the overlying atmospheric water vapor and can be visualized as a "beating" over the Amazon. The rain and the winds also have a clear diurnal cycle, and shows how the land's signature can be seen in the hydroclimatology above.
AB - The Amazon rainforest is the largest and most biologically diverse ecosystem in the planet. Moisture-laden tropical winds from the Atlantic Ocean enter the Amazon, bringing precipitation to the forest; the dense canopy then then transpires and contributes water for precipitation downwind. In fact, it has been estimated that between 20% and 40% of Amazonian rain comes from transpiration and evaporation (ET) from the forest itself. However, only recently have we been able to quantify the contribution of Amazonian ET to precipitation. Using the state-of-the art Weather Research and Forecast (WRF) atmospheric model with water tracers, we are able to trace the moisture that originates from the Amazon rainforest. This is analogous to putting dye in the model's hydrologic cycle. By visualizing the output of this model we were able to show, for the first time, that the diurnal cycle of transpiration provides a clear diurnal signal to the overlying atmospheric water vapor and can be visualized as a "beating" over the Amazon. The rain and the winds also have a clear diurnal cycle, and shows how the land's signature can be seen in the hydroclimatology above.
KW - Amazon Forest
KW - Moisture Tracking
KW - Particle Tracking
UR - http://www.scopus.com/inward/record.url?scp=85089282574&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85089282574&partnerID=8YFLogxK
U2 - 10.1145/3311790.3404535
DO - 10.1145/3311790.3404535
M3 - Conference contribution
T3 - ACM International Conference Proceeding Series
SP - 543
EP - 544
BT - PEARC 2020 - Practice and Experience in Advanced Research Computing 2020
PB - Association for Computing Machinery
Y2 - 27 July 2020 through 31 July 2020
ER -