Interannual variation of chlorophyll-a concentration in the exclusive economic zone waters of Peninsular Malaysia

Research output: Contribution to journalArticle

Abstract

Chlorophyll-a concentration is one of the major indicators of phytoplankton production in the ocean. Identification of chlorophyll-a distribution and productivity is important to understand physical and biological processes in the ocean. The objectives of this study are to determine the spatial and temporal distribution of chlorophyll-a and to identify influence of sea surface temperature (SST) and current on chlorophyll-a concentration variation in the Exclusive Economic Zone (EEZ) waters of Peninsular Malaysia. Satellite data of chlorophyll-a concentration and SST (2007 to 2014) were derived from MODIS-Aqua and geostrophic current was obtained from NOAA Ocean Watch. Empirical Orthogonal Function (EOF) analysis was used to determine the spatial and temporal variation of chlorophyll-a. Five modes represented the variation of chlorophyll-a. Mode 1 (60.62%) explained seasonal pattern, Mode 2 (27.83%) indicated patterns during the southwest monsoon, Mode 3 (19.96%) highlighted the inter monsoon of northeast to southwest. Mode 4 (19.57%) represented the northeast monsoon and Mode 5 (18.98%) explained inter monsoon of southwest to northeast. Variation of chlorophyll-a concentration was influenced by variability in SST and current during the monsoons. Variability in magnitude and direction of current circulation was observed to affect SST distribution thus influences concentration and distribution of chlorophyll-a.

Original languageEnglish
Pages (from-to)111-116
Number of pages6
JournalMalaysian Applied Biology
Volume46
Issue number1
Publication statusPublished - 1 Mar 2017

Fingerprint

concentration (economics)
Malaysia
Oceans and Seas
Economics
chlorophyll
Water
surface temperature
Temperature
oceans
Physical Phenomena
Biological Phenomena
chlorophyll a
Phytoplankton
moderate resolution imaging spectroradiometer
remote sensing
temporal variation
spatial variation
seasonal variation
phytoplankton

Keywords

  • Chlorophyll-a
  • EOF
  • Exclusive Economic Zone
  • Spatial variability

ASJC Scopus subject areas

  • Agricultural and Biological Sciences(all)

Cite this

@article{76333fda6c4b4e219790d04ebf533090,
title = "Interannual variation of chlorophyll-a concentration in the exclusive economic zone waters of Peninsular Malaysia",
abstract = "Chlorophyll-a concentration is one of the major indicators of phytoplankton production in the ocean. Identification of chlorophyll-a distribution and productivity is important to understand physical and biological processes in the ocean. The objectives of this study are to determine the spatial and temporal distribution of chlorophyll-a and to identify influence of sea surface temperature (SST) and current on chlorophyll-a concentration variation in the Exclusive Economic Zone (EEZ) waters of Peninsular Malaysia. Satellite data of chlorophyll-a concentration and SST (2007 to 2014) were derived from MODIS-Aqua and geostrophic current was obtained from NOAA Ocean Watch. Empirical Orthogonal Function (EOF) analysis was used to determine the spatial and temporal variation of chlorophyll-a. Five modes represented the variation of chlorophyll-a. Mode 1 (60.62{\%}) explained seasonal pattern, Mode 2 (27.83{\%}) indicated patterns during the southwest monsoon, Mode 3 (19.96{\%}) highlighted the inter monsoon of northeast to southwest. Mode 4 (19.57{\%}) represented the northeast monsoon and Mode 5 (18.98{\%}) explained inter monsoon of southwest to northeast. Variation of chlorophyll-a concentration was influenced by variability in SST and current during the monsoons. Variability in magnitude and direction of current circulation was observed to affect SST distribution thus influences concentration and distribution of chlorophyll-a.",
keywords = "Chlorophyll-a, EOF, Exclusive Economic Zone, Spatial variability",
author = "{Ahmad Mustapha}, Muzzneena and Tukimat Lihan and Zambari, {I. F.}",
year = "2017",
month = "3",
day = "1",
language = "English",
volume = "46",
pages = "111--116",
journal = "Malaysian Applied Biology",
issn = "0126-8643",
publisher = "Malaysian Society of Applied Biology",
number = "1",

}

TY - JOUR

T1 - Interannual variation of chlorophyll-a concentration in the exclusive economic zone waters of Peninsular Malaysia

AU - Ahmad Mustapha, Muzzneena

AU - Lihan, Tukimat

AU - Zambari, I. F.

PY - 2017/3/1

Y1 - 2017/3/1

N2 - Chlorophyll-a concentration is one of the major indicators of phytoplankton production in the ocean. Identification of chlorophyll-a distribution and productivity is important to understand physical and biological processes in the ocean. The objectives of this study are to determine the spatial and temporal distribution of chlorophyll-a and to identify influence of sea surface temperature (SST) and current on chlorophyll-a concentration variation in the Exclusive Economic Zone (EEZ) waters of Peninsular Malaysia. Satellite data of chlorophyll-a concentration and SST (2007 to 2014) were derived from MODIS-Aqua and geostrophic current was obtained from NOAA Ocean Watch. Empirical Orthogonal Function (EOF) analysis was used to determine the spatial and temporal variation of chlorophyll-a. Five modes represented the variation of chlorophyll-a. Mode 1 (60.62%) explained seasonal pattern, Mode 2 (27.83%) indicated patterns during the southwest monsoon, Mode 3 (19.96%) highlighted the inter monsoon of northeast to southwest. Mode 4 (19.57%) represented the northeast monsoon and Mode 5 (18.98%) explained inter monsoon of southwest to northeast. Variation of chlorophyll-a concentration was influenced by variability in SST and current during the monsoons. Variability in magnitude and direction of current circulation was observed to affect SST distribution thus influences concentration and distribution of chlorophyll-a.

AB - Chlorophyll-a concentration is one of the major indicators of phytoplankton production in the ocean. Identification of chlorophyll-a distribution and productivity is important to understand physical and biological processes in the ocean. The objectives of this study are to determine the spatial and temporal distribution of chlorophyll-a and to identify influence of sea surface temperature (SST) and current on chlorophyll-a concentration variation in the Exclusive Economic Zone (EEZ) waters of Peninsular Malaysia. Satellite data of chlorophyll-a concentration and SST (2007 to 2014) were derived from MODIS-Aqua and geostrophic current was obtained from NOAA Ocean Watch. Empirical Orthogonal Function (EOF) analysis was used to determine the spatial and temporal variation of chlorophyll-a. Five modes represented the variation of chlorophyll-a. Mode 1 (60.62%) explained seasonal pattern, Mode 2 (27.83%) indicated patterns during the southwest monsoon, Mode 3 (19.96%) highlighted the inter monsoon of northeast to southwest. Mode 4 (19.57%) represented the northeast monsoon and Mode 5 (18.98%) explained inter monsoon of southwest to northeast. Variation of chlorophyll-a concentration was influenced by variability in SST and current during the monsoons. Variability in magnitude and direction of current circulation was observed to affect SST distribution thus influences concentration and distribution of chlorophyll-a.

KW - Chlorophyll-a

KW - EOF

KW - Exclusive Economic Zone

KW - Spatial variability

UR - http://www.scopus.com/inward/record.url?scp=85017177880&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85017177880&partnerID=8YFLogxK

M3 - Article

VL - 46

SP - 111

EP - 116

JO - Malaysian Applied Biology

JF - Malaysian Applied Biology

SN - 0126-8643

IS - 1

ER -