Changes in marine environments affect fishery resources at different spatial and temporal scales ecosystems. Predictions from species distribution models are available to parameterize the environmental characteristics that influence biology, range, habitats of interest. This study used generalized additive (GAMs) fitted two spatiotemporal data sources, namely 1° grid observer record longline 2006 2010, investigate relationship between catch rates yellowfin tuna oceanographic conditions by...

Globally mud areas on continental shelves are conduits for the dispersal of fluvial-sourced sediment. We address fundamental issues in sediment dynamics focusing how is retained seabed shallow inner and what sources mud. Through a process-based comprehensive study that integrates dynamics, provenance, sedimentology, here we show key mechanism to keep water-column stratification forms dynamic barrier vertical restricts upward mixing suspended studied 1000 km-long belt extends from mouth...

Abstract. Severe tropical storms play an important role in triggering phytoplankton blooms, but the extent to which such influence biogenic carbon flux from euphotic zone is unclear. In 2008, typhoon Fengwong provided a unique opportunity study situ biological responses including blooms and particulate organic fluxes associated with severe storm southern East China Sea (SECS). After passage of typhoon, sea surface temperature (SST) SECS was markedly cooler (∼25 26 °C) than before (∼28 29...

The serial remote sensing based imageries clearly revealed large scale of upwelling within regional enhancement chlorophyll‐ a (Chl‐ ) concentration in the southern East China Sea (ECS) after passage super typhoon Hai‐Tang July 2005. After on 22 July, area (<26°C) expanded rapidly to 9146 km 2 shelf‐break. increased persisted for more than week. Ocean color images also reveled that high Chl‐ >3.0 mg/m 3 appeared shelf region, where pattern matched terms location and time. On other...

Coastal regions are threatened by natural processes, such as erosion driven storm surge and the effect of jetties, well human behavior. This study outlines a management framework based on an analysis case dataset long-term coastal change in southwestern Taiwan. Specifically, structure Taiwan's largest lagoon, Cigu, was analyzed over 300-year-long period. A series satellite-derived images between 1974 2015 were assessed. The integrated with geographic information system (GIS). results...

The Tibetan Plateau has an important impact on regional water cycle, ecosystem, disastrous weather formation, and climate change.China conducted the Third Experiment-Observation of Boundary Layer Troposphere (2014-2017) Project in order to reveal physical process meteorology atmosphere over Plateau.The observational instruments for cloud precipitation processes this field experiment include C-band continuous wave radar, Ka-band millimetre ground-based raindrop disdrometer, lidar ceilometer...

Abstract This study investigates the roles of atmospheric moisture transport under influence topography for summer extreme precipitation over North China (NC) during 1979–2016. Based on rain gauge data and a reanalysis, 38 days in NC years were selected associated fluxes estimated. The results show that there is dominant influx 311.8 kg m −1 s into along its southern boundary from tropical oceans, secondary 107.9 across western carried by mid-latitude westerlies. outflux eastern 206.9...

The spatiotemporal variability of precipitation extremes dramatically affects various socio-economic activities in dryland. Based on the long-term and high-resolution daily obtained from National Oceanic Atmosphere Administration (NOAA) Climate Prediction Center (CPC), total summer (TSP), extreme persistent (PPE) characteristics are revealed Central Asia (CA) (34.3°N–55.4°N 46.5°E–96.4°E) during 1979–2018. Results show that TSP, PPE CA significantly increased abrupt increasing occurred...

Skipjack tuna are the most abundant commercial species in Taiwan’s pelagic purse seine fisheries. However, rapidly changing marine environment increases challenge of locating target fish vast ocean. The aim this study was to identify potential fishing grounds skipjack Western and Central Pacific Ocean (WCPO). were simulated using habitat suitability index (HSI) on basis global activities remote sensing data from 2012 2015. selected environmental factors included sea surface temperature...

The empirical habitat suitability index (HSI) has been widely used to examine the characteristics of terrestrial animals, though rarely in highly migratory fish such as tuna. This study geographic information system technique establish models HSI for yellowfin tuna (YFT) Western and Central Pacific Ocean (WCPO). Daily catch data from Taiwanese purse seine fishery during 2003–2007 were aggregated monthly into sequential degrees before match processing conducted obtain remote-sensing...

Abstract The variability of extreme precipitation in eastern central Asia (ECA) during summer (June–August) and its corresponding mechanisms were investigated from a multiscale synergy perspective. Extreme ECA displayed quasi-monopole increasing pattern with abrupt change since 2000/01, which was likely dominated by increased high-latitude North Atlantic SST anomalies as shown diagnosed numerical experiment results. Increased via adjusting the quasi-stationary wave train that related to...

Marine protected areas (MPAs) are important conservation tools; however, many fail to achieve their full potential because of design and management deficiencies. Evaluating MPA effectiveness (ME) is essential for identifying deficiency issues in conservations guiding improvements. This study established an indicator-based framework evaluate ME tailored Taiwan's MPAs through literature reviews, expert consultations, stakeholder workshops. We applied 28 indicators the evaluation 30 fishery...

We present wintertime variations and distributions of sea surface temperature (SST) fronts in the Taiwan Strait by applying an entropy‐based edge detection method to 10‐year (1996–2005) satellite SST images with grid size 0.01°. From climatological monthly mean maps gradient magnitude winter, we identify four significant Strait. The Mainland China Coastal Front is a long frontal band along 50‐m isobath near Chinese coast. sharp Peng‐Chang appears Peng‐Hu Channel extends northward around...

Recent studies show that typhoons have profound effects on phytoplankton assemblages along their tracks, but it is difficult to quantitatively estimate nutrient supply after a typhoon's passage due lack of information before and the arrival typhoon.During Typhoon Morakot (July 22 Aug. 26, 2009), we conducted pre-and post-typhoon field cruises study in Southern East China Sea (SECS).The results showed nitrate phosphate supplies water column SECS were 5.6 × 10 11 g-N/day 7.8 g-P/day which...

To understand the biogeochemical response to internal waves in deep basin of northern South China Sea (NSCS), particulate organic carbon (POC) export fluxes were quantified for first time during passage large using drifting sediment traps attached with hydrographic sensors. Results revealed variations temperature, nitrate and chlorophyll a (Chl a) concentrations after waves, suggesting that cold nutrient-replete waters may be brought euphotic zone dissipation wave packets, resulted...

1 Department of Environmental Biology and Fisheries Science, National Taiwan Ocean University, Keelung, Taiwan, ROC 2 Center for Atmospheric Oceanic Studies, Faculty Tohoku Sendai, Japan 3 Data Bank Research, Taipei 106, * Corresponding author address: Prof. Ming-An Lee , ROC; E-mail: malee@mail.ntou.edu.tw In order to validate the Advanced Very High Resolution Radiometer (AVHRR)-derived sea surface temperatures (SST) waters around we generated a match-up data set 961 pairs, which included...

We reported the first aircraft campaign on summer cloud microphysical properties conducted in July of 2014 over Tibetan Plateau during third Atmospheric Sciences Experiment (TIPEX-III), and demonstrated that clouds were primarily characterized as mixed-phase cumulus induced by strong solar radiation heating. Moreover, characteristic number concentration droplets (2~50 μm diameter) developing cumuli was around 10 cm-3, which about 1~2 orders magnitudes lower than other continent ocean...

Material exchange between oceans and currents is crucial for biogeochemical processes in marginal seas, such as the Kuroshio intrusion Luzon Strait, which contributes to nutrient phytoplankton growth adjacent water. Therefore, it necessary understand changes major current systems their possible effects on marine ecology. In this study, we applied an edge-detection method satellite-derived sea-surface temperature (SST) images identify SST front index of during 1985–2017. Chlorophyll-a (Chl-a)...

In order to deal with the uncertainty of measurement noise, particularly for outlier types multipath interference and non-line sight (NLOS) reception, this paper proposes a novel method processing navigation states Global Positioning System (GPS) that combines maximum correntropy criterion (MCC) interacting multiple model (IMM), an extended Kalman Filter (EKF). Multipath mitigation is essential increased positioning accuracy since one primary sources errors. Nonlinear filtering IMM...