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Purba NP, Faizal I, Azidane H, Khan AM, Dewanti LP, Utami ST, Fellatami K. A series of small-scale atmospheric datasets observed in south of Java, Pangandaraan Bay, Indonesia. Data Brief 2023; 50:109609. [PMID: 37808540 PMCID: PMC10556578 DOI: 10.1016/j.dib.2023.109609] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2023] [Revised: 09/16/2023] [Accepted: 09/18/2023] [Indexed: 10/10/2023] Open
Abstract
This paper presents a collection of small-scale atmospheric datasets obtained from a PCE-FWS 20 N weather station in Pangandaraan, a region situated in the southern part of Java Island. The datasets cover a period from March 2022 to April 2023, with hourly measurements of air temperature, humidity, wind speed, wind direction, and daily rainfall. The instrument was cleaned and calibrated every three months according to the manufacturer's guidelines. Every week the data was downloaded from the memory card, resulting in a total of 48,468 data points available in a publicly accessible repository. The collected data were organized into .csv format and visualized to facilitate analysis. Our study aims to explore the microclimate of Pangandaraan over an extended period and highlights its potential applications in various fields, such as applied oceanography, meteorology, fishing grounds, and agriculture.
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Affiliation(s)
- Noir P. Purba
- Marine Conservation Programme, Faculty of Fishery and Marine Science, Padjadjaran University, Jl. Raya Bandung-Sumedang Km. 21, Bandung, West Java, Indonesia
| | - Ibnu Faizal
- Department of Marine Science, Faculty of Fishery and Marine Science, Padjadjaran University, Jl. Raya Bandung-Sumedang Km. 21, Bandung, West Java, Indonesia
| | - Hind Azidane
- Department of Geology, Faculty of Sciences, Ibn Tofail University, B.P. 133 Kenitra, Morocco
| | - Alexander M.A. Khan
- Department of Fishery, Faculty of Fishery and Marine Science, Padjadjaran University, Jl. Raya Bandung-Sumedang Km. 21, Bandung, West Java, Indonesia
| | - Lantun P. Dewanti
- Department of Fishery, Faculty of Fishery and Marine Science, Padjadjaran University, Jl. Raya Bandung-Sumedang Km. 21, Bandung, West Java, Indonesia
| | - Sanny T. Utami
- College of Fisheries, Ocean University of China, Qingdao, China
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Seasonal Variability in Chlorophyll and Air-Sea CO2 Flux in the Sri Lanka Dome: Hydrodynamic Implications. REMOTE SENSING 2022. [DOI: 10.3390/rs14143239] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/07/2022]
Abstract
Multiple upwelling systems develop in the Indian Ocean during the summer monsoon. The Sri Lanka dome (SLD), which occurs in the open ocean off the east coast of Sri Lanka from June to September, is distinct from those near the coast. The SLD is characterized by uplifted thermocline and increased chlorophyll concentration. Mechanisms of the upwelling and its biogeochemical response are not well understood. Here, we explored the dynamics of the chlorophyll and sea-to-air CO2 flux in the SLD using ocean color and altimetry remote sensing data, together with other reanalysis products. We found that the occurrence of high chlorophyll concentration and sea-to-air CO2 flux happens along the pathway of the southwest monsoon current (SMC). The annual cycle of chlorophyll in the SLD has a one-month lag relative to that in the southern coast of Sri Lanka. The positive wind stress curl that forms in the SLD during the summer does not fully explain the seasonal chlorophyll maximum. Transport of the SMC, eddy activity, and associated frontal processes also play an important role in regulating the variability in chlorophyll. In the SLD, upwelled subsurface water has excess dissolved inorganic carbon (DIC) relative to the conventional Redfield ratio between DIC and nutrients; thus, upwelling and sub-mesoscale processes determine this region to be a net carbon source to the atmosphere.
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On Investigating the Dynamical Factors Modulating Surface Chlorophyll-a Variability along the South Java Coast. REMOTE SENSING 2022. [DOI: 10.3390/rs14071745] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Twelve years of remotely sensed all-sat merged chlorophyll-a concentration unveils strong signatures of chlorophyll-a blooms along the south Java coast. An unprecedented three-times increase in chlorophyll-a concentration is significantly observed along the south Java coast during the southeast monsoon (June–October) than the northwest monsoon (December–April). The multiple regression analysis of dynamic factors evidently indicates that seasonal upwelling is predominantly controlled by the seasonally evolving coastal eddies associated with the seasonally reversing south Java coastal currents (SJCC) and Ekman mass transport (EMT), followed by the relative roles of sea surface temperature (SST) and wind stress curl. The eddy-induced upwelling and EMT-induced coastal upwelling lead to chlorophyll-a blooms during southeast monsoon, well-supported by the entrainment of cold and saline waters (thermocline doming) with low spiciness. On the other hand, the coastal eddies associated with SJCC and SST anomalies play a significant role in modulating the interannual surface chlorophyll-a variability in the domain. Intense chlorophyll-a blooms are observed during the positive IOD years, whereas the least chlorophyll-a concentration is observed during the negative IOD years. The unprecedentedly least chlorophyll-a concentrations during 2010 and 2016 are attributed to the intense and prolonged surface marine heatwaves.
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