Back to Search
Start Over
Long-Range Transport of a Dust Event and Impact on Marine Chlorophyll-a Concentration in April 2023.
- Source :
- Remote Sensing; Jun2024, Vol. 16 Issue 11, p1883, 14p
- Publication Year :
- 2024
-
Abstract
- Dust aerosols serve as a crucial nutrient source to the oceans and profoundly influence marine ecosystems. This study used satellite and ground observations to explore a strong dust event on 9ā13 April 2023, emanating from the Gobi Desert, shared by Mongolia and China's Inner Mongolia region. We investigated the deposition of dust particles and their effects on marine phytoplankton communities. Our findings revealed that the dust event was intense, enduring, and expansive, illustrated by hourly PM<subscript>10</subscript> concentrations peaking at 5055 µg/m<superscript>3</superscript> near the source and consistently exceeding 1000 µg/m<superscript>3</superscript>, even at considerable distances. The dust traveled along two different trajectories and was deposited in the same area of the Northwest Pacific. Total dust deposition in the study area (37°Nā42°N, 145°Eā165°E) was 79.88 mg/m<superscript>2</superscript> from 13 to 18 April, much higher than the 2019ā2022 average deposition of 33.03 mg/m<superscript>2</superscript> for the same period. With dust deposition, the observed mean chlorophyll-a concentrations in the area increased to 2.78 mg/m<superscript>3</superscript> on 14 April, an extraordinary 692% increase above the long-term average. These results highlight the profound impact of dust on the productivity of marine phytoplankton communities by inputting more nutrients into the ocean through different pathways. [ABSTRACT FROM AUTHOR]
- Subjects :
- MARINE debris
DUST
MARINE phytoplankton
MARINE productivity
MARINE ecology
AEROSOLS
Subjects
Details
- Language :
- English
- ISSN :
- 20724292
- Volume :
- 16
- Issue :
- 11
- Database :
- Complementary Index
- Journal :
- Remote Sensing
- Publication Type :
- Academic Journal
- Accession number :
- 177851449
- Full Text :
- https://doi.org/10.3390/rs16111883