Assessment of absorbing aerosols on austral spring snow albedo reduction by several basins in the Central Andes of Chile from daily satellite observations (2000–2016) and a case study with the WRF‑Chem model
Abstract: Changes in snow albedo (SA) on the Limari, Choapá, Aconcagua and Maipo basins of the Central Andes of Chile (CAC) are associated with the possible deposition of light-absorbing particles in the austral spring. We correlate SA with daily data of snow cover, aerosol optical depth (AOD) and...
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Autores principales: | , , , , , , |
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Formato: | Artículo |
Lenguaje: | Inglés |
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Springer Nature
2019
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Acceso en línea: | https://repositorio.uca.edu.ar/handle/123456789/9286 |
Aporte de: |
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I33-R139123456789-9286 |
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institution |
Universidad Católica Argentina |
institution_str |
I-33 |
repository_str |
R-139 |
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Repositorio Institucional de la Universidad Católica Argentina (UCA) |
language |
Inglés |
topic |
ALBEDO AEROSOLES NIEVE METEREOLOGIA |
spellingShingle |
ALBEDO AEROSOLES NIEVE METEREOLOGIA Bolaño Ortiz, Tomás R. Pascual Flores, Romina M. López‑Noreña, Ana Isabel Ruggeri, María F. Lakkis, Susan Gabriela Fernández, Rafael Pedro Puliafito, Salvador E. Assessment of absorbing aerosols on austral spring snow albedo reduction by several basins in the Central Andes of Chile from daily satellite observations (2000–2016) and a case study with the WRF‑Chem model |
topic_facet |
ALBEDO AEROSOLES NIEVE METEREOLOGIA |
description |
Abstract: Changes in snow albedo (SA) on the Limari, Choapá, Aconcagua and Maipo basins of the Central Andes of Chile (CAC)
are associated with the possible deposition of light-absorbing particles in the austral spring. We correlate SA with daily
data of snow cover, aerosol optical depth (AOD) and land surface temperature (LST) available from the Moderate Resolution
Imaging Spectroradiometer (MODIS) onboard the NASA Terra satellite between 2000 and 2016, and other derived
parameters such as days after albedo (DAS) and snow precipitation (SP). We used satellite pixels with 100% snow cover to
obtain monthly average value of SA, LST, AOD, DAS and SP from September to November performing multiple regression
analysis. We show that in Maipo, after considering LST, AOD represents an important role in changes induced to SA. The
multiple regression model illustrates that AOD increases can reduce the SA during spring months by 13.59, 0.01, 0.77
and 3.8% in Limari, Choapá, Aconcagua and Maipo, respectively. In addition, we used a numerical prediction Weather
Research and Forecasting model coupled with Chemistry (WRF-Chem), showing that the black carbon distribution and
average daily AOD are associated with the SA decrease of 0.15 in the Maipo basin between September 29 and 30, 2016.
The WRF-Chem output showed aerosols are transported mainly with dominating westerly winds to the Limari and Maipo
basins. Our results further suggest that SA decrease due to AOD may be originated in the largest industrial and urban
areas in Chile, producing a negative impact on the hydrological resource, generated in the CAC. |
format |
Artículo |
author |
Bolaño Ortiz, Tomás R. Pascual Flores, Romina M. López‑Noreña, Ana Isabel Ruggeri, María F. Lakkis, Susan Gabriela Fernández, Rafael Pedro Puliafito, Salvador E. |
author_facet |
Bolaño Ortiz, Tomás R. Pascual Flores, Romina M. López‑Noreña, Ana Isabel Ruggeri, María F. Lakkis, Susan Gabriela Fernández, Rafael Pedro Puliafito, Salvador E. |
author_sort |
Bolaño Ortiz, Tomás R. |
title |
Assessment of absorbing aerosols on austral spring snow albedo reduction by several basins in the Central Andes of Chile from daily satellite observations (2000–2016) and a case study with the WRF‑Chem model |
title_short |
Assessment of absorbing aerosols on austral spring snow albedo reduction by several basins in the Central Andes of Chile from daily satellite observations (2000–2016) and a case study with the WRF‑Chem model |
title_full |
Assessment of absorbing aerosols on austral spring snow albedo reduction by several basins in the Central Andes of Chile from daily satellite observations (2000–2016) and a case study with the WRF‑Chem model |
title_fullStr |
Assessment of absorbing aerosols on austral spring snow albedo reduction by several basins in the Central Andes of Chile from daily satellite observations (2000–2016) and a case study with the WRF‑Chem model |
title_full_unstemmed |
Assessment of absorbing aerosols on austral spring snow albedo reduction by several basins in the Central Andes of Chile from daily satellite observations (2000–2016) and a case study with the WRF‑Chem model |
title_sort |
assessment of absorbing aerosols on austral spring snow albedo reduction by several basins in the central andes of chile from daily satellite observations (2000–2016) and a case study with the wrf‑chem model |
publisher |
Springer Nature |
publishDate |
2019 |
url |
https://repositorio.uca.edu.ar/handle/123456789/9286 |
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