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1. Subseasonal variations of Eurasian wintertime surface air temperature: two distinct leading modes

Author:
Zhiwei Wu,   et al.   ; Wogu Zhong;     Show all 2 Author
Source:
Climate dynamics 2022 v.59 no.1-2 pp. 85-108
ISSN:
0930-7575
Subject:
North Atlantic Oscillation; air temperature; climate; cold; dynamics; empirical models; heat transfer; prediction; surface water temperature; variance; winter; Arctic Ocean; Arctic region; Eurasia
Abstract:
... To better understand subseasonal evolutions of wintertime surface air temperature (SAT) over Eurasia, this study investigates the first two leading modes of SAT month-to-month variations based on Season-reliant Empirical Orthogonal Function (S-EOF) analysis. The first S-EOF mode is characterized by a continuous in-phase SAT anomaly throughout the whole winter and labelled as the Consistent Mode (C ...
DOI:
10.1007/s00382-021-06118-8

2. Assessing spatial patterns and drivers of burn severity in subtropical forests in Southern China based on Landsat 8

Author:
Zhiwei Wu,   et al.   ; Lingling Guo; Shun Li; Russell A. Parsons; Shitao Lin; Bo Wu; Long Sun;     Show all 7 Authors
Source:
Forest ecology and management 2022 v.524 pp. 120515
ISSN:
0378-1127
Subject:
Landsat; administrative management; algorithms; burn severity; forest ecology; forest fire management; forests; humans; China
Abstract:
... Burn severity assessment is vital for the development of effective fire management strategies. Subtropical forests in Southern China support rich forest resources but are also disturbed by frequent forest fires, resulting in varying burn severity areas. However, the lack of accuracy assessment of burn severity based on spectral indices has limited our understanding of spatial patterns and drivers ...
DOI:
10.1016/j.foreco.2022.120515

3. Combining multicolor fluorescence imaging with multispectral reflectance imaging for rapid citrus Huanglongbing detection based on lightweight convolutional neural network using a handheld device

Author:
Zhiwei Wu,   et al.   ; Chengcheng He; Xiaobin Li; Yunshi Liu; Biyun Yang; Shipei Tan; Dapeng Ye; Haiyong Weng;     Show all 8 Authors
Source:
Computers and electronics in agriculture 2022 v.194 pp. 106808
ISSN:
0168-1699
Subject:
Citrus sinensis; agriculture; cultivars; data collection; disease detection; electronics; fluorescence; greening disease; neural networks; orchards; photosynthesis; rapid methods; reflectance; secondary metabolites
Abstract:
... Citrus Huanglongbing (HLB) has posed a great challenge to the citrus production. Timely removal of HLB infected trees was considered as one of the most effective strategies for citrus orchard management. Therefore, rapid detection of HLB disease is urgently needed. The study was aimed to propose an effective method for HLB disease detection by developing a handheld device to capture multicolor flu ...
DOI:
10.1016/j.compag.2022.106808

4. Soldier Caste-Specific Protein 1 Is Involved in Soldier Differentiation in Termite Reticulitermes aculabialis

Author:
Zhiwei Wu,   et al.   ; Yunliang Du; Zhenya Li; Ruiyao Guo; Yiying Li; Jizhen Wei; Xinming Yin; Lijuan Su;     Show all 8 Authors
Source:
Insects 2022 v.13 no.6 pp. -
ISSN:
2075-4450
Subject:
Reticulitermes; computer software; ecdysone; genes; head; hydrophobicity; juvenile hormones; ligands; transcription factors
Abstract:
... Termite soldiers are a unique caste among social insects, and their differentiation can be induced by Juvenile hormone (JH) from workers through two molts (worker–presoldier–soldier). However, the molecular mechanism underlying the worker-to-soldier transformation in termites is poorly understood. To explore the mechanism of soldier differentiation induced by JH, the gene soldier caste-specific pr ...
DOI:
10.3390/insects13060502

5. Characterization of Molting Process during the Different Developmental Stages of the Diamondback Moth Plutella xylostella

Author:
Zhiwei Wu,   et al.   ; Licheng Gu; Xiaotong Wu; Yuenan Zhou; Pei Yang; Xiqian Ye; Min Shi; Jianhua Huang; Xuexin Chen;     Show all 9 Authors
Source:
Insects 2022 v.13 no.3 pp. -
ISSN:
2075-4450
Subject:
Plutella xylostella; ecdysis; eclosion; eggs; metamorphosis; microscopy; pupal development; video cameras
Abstract:
... The molting process of the lepidopteran insects is observed for many species. However, the detailed description of the morphological transformation and behavioral sequence during molting are rarely provided and visualized. Here, we described the molting process of the diamondback moth Plutella xylostella by providing the duration and photographic details of staging criteria of each stage using ste ...
DOI:
10.3390/insects13030289

6. Contribution of Northeastern Asian stratospheric warming to subseasonal prediction of the early winter haze pollution in Sichuan Basin, China

Author:
Zhiwei Wu,   et al.   ; Luyu Chang; Jianming Xu;     Show all 3 Authors
Source:
Science of the total environment 2021 v.751 pp. 141823
ISSN:
0048-9697
Subject:
basins; environment; landscapes; models; pollutants; pollution; prediction; stratosphere; temperature; troposphere; variance; wet deposition; winter; China
Abstract:
... Predicting the interannual (IA) variability of the early winter haze pollution (HP) in Sichuan Basin (SCB) and analyzing the contribution of the complex terrain are of great significance and challenge as well. For one thing, this study finds that the second mode of early winter IA variations of the HP in Central Eastern China (CEC) is dominated by the pollutant pattern of SCB, characterized by an ...
DOI:
10.1016/j.scitotenv.2020.141823

7. Spatial heterogeneity of dead fuel moisture content in a Larix gmelinii forest in Inner Mongolia using geostatistics

Author:
Zhiwei Wu,   et al.   ; Heng Zhang; Shihao Ma; Ping Kang; Qiuliang Zhang;     Show all 5 Authors
Source:
Journal of forestry research 2021 v.32 no.2 pp. 569-577
ISSN:
1007-662X
Subject:
Larix gmelinii; anisotropy; forest fires; forestry; forests; fuel moisture index; fuels (fire ecology); geostatistics; humus; prediction; research; spatial variation; water content; China
Abstract:
... Spatial heterogeneity of fuel moisture content determines the spread rate and direction of a forest fire. Research on the spatial heterogeneity of the moisture content of dead fuel of Larix gmelinii Rupr. showed that: (1) fuel moisture content in litter layer < semi-humus layer < humus layer, and the coefficient of variation decreased with sampling depth; (2) the sill value of the semi-humus layer ...
DOI:
10.1007/s11676-020-01167-x

8. Preparation of ashless cellulose paper standards for rapid determination of multi-element concentrations in airborne fine particulate matter using laser ablation inductively coupled plasma mass spectrometry

Author:
Zhiwei Wu,   et al.   ; Lei Qiao; Ruijie Zhang; Jing Qiao; Xiaoyan He;     Show all 5 Authors
Source:
RSC advances 2021 v.11 no.12 pp. 6644-6653
ISSN:
2046-2069
Subject:
atomic absorption spectrometry; calibration; cellulose; evaporation; paper; particulates
Abstract:
... In this study, we developed ashless cellulose filter papers as calibration standards in laser ablation inductively coupled plasma mass spectrometry (LA-ICP-MS) to rapidly determine multi-element concentrations in airborne fine particulate matter (PM₂.₅). To achieve this, the papers were treated by immersion in standard solutions, followed by evaporation of the solutions. The homogeneity of the pap ...
DOI:
10.1039/d0ra09200b

9. A Head/Tail Breaks-Based Method for Efficiently Estimating the Absolute Boltzmann Entropy of Numerical Raster Data

Author:
Zhiwei Wu,   et al.   ; Hong Zhang;     Show all 2 Author
Source:
ISPRS international journal of geo-information 2020 v.9 no.2 pp. -
ISSN:
2220-9964
Subject:
data collection; entropy; head; raster data; tail
Abstract:
... Shannon entropy is the most popular method for quantifying information in a system. However, Shannon entropy is considered incapable of quantifying spatial data, such as raster data, hence it has not been applied to such datasets. Recently, a method for calculating the Boltzmann entropy of numerical raster data was proposed, but it is not efficient as it involves a series of numerical processes. W ...
DOI:
10.3390/ijgi9020103

10. A teratocyte‐specific serpin from the endoparasitoid wasp Cotesia vestalis inhibits the prophenoloxidase‐activating system of its host Plutella xylostella

Author:
Zhiwei Wu,   et al.   ; Qijuan Gu; Yuenan Zhou; Zhizhi Wang; Min Shi; Jianhua Huang; Xuexin Chen;     Show all 7 Authors
Source:
Insect molecular biology 2022 v.31 no.2 pp. 202-215
ISSN:
0962-1075
Subject:
Cotesia; Plutella xylostella; Polydnaviridae; dose response; endoparasitoids; extracellular space; genes; hemolymph; immune response; melanization; molecular biology; parasitism; prophenoloxidase; teratocytes; transcription (genetics); venoms; wasps
Abstract:
... Many endoparasitoids adopt several parasitic factors, such as venom, polydnavirus and teratocytes, to suppress the immune response of their associated hosts including melanization for successful parasitism. A teratocyte‐specific expressed serpin gene, designated as CvT‐serpin6, was identified from the parasitoid Cotesia vestalis. The immunoblot result suggested that CvT‐serpin6 was secreted into e ...
DOI:
10.1111/imb.12751

11. Summertime atmosphere–sea ice coupling in the Arctic simulated by CMIP5/6 models: Importance of large-scale circulation

Author:
Zhiwei Wu,   et al.   ; Rui Luo; Qinghua Ding; Ian Baxter; Mitchell Bushuk; Yiyi Huang; Xiquan Dong;     Show all 7 Authors
Source:
Climate dynamics 2021 v.56 no.5-6 pp. 1467-1485
ISSN:
0930-7575
Subject:
air temperature; atmospheric circulation; climate; dynamics; humidity; latitude; sea ice; summer; terrestrial radiation; Arctic region
Abstract:
... Summertime barotropic high pressure in the Arctic and its induced warmer and wetter atmosphere over sea ice are suggested to be important contributors to September sea ice loss on interannual and interdecadal time scales in the past decades. Using ERA5 and other reanalysis data, we find that atmospheric warming and moistening in the Arctic, synchronized by high latitude atmospheric circulation var ...
DOI:
10.1007/s00382-020-05543-5

12. A serpin (CvT‐serpin15) of teratocytes contributes to microbial‐resistance in Plutella xylostella during Cotesia vestalis parasitism

Author:
Zhiwei Wu,   et al.   ; Qijuan Gu; Yuenan Zhou; Zhizhi Wang; Jianhua Huang; Min Shi; Xuexin Chen;     Show all 7 Authors
Source:
Pest management science 2021 v.77 no.10 pp. 4730-4740
ISSN:
1526-498X
Subject:
Cotesia; Plutella xylostella; Polydnaviridae; Staphylococcus aureus; antibacterial properties; endoparasitoids; enzyme activity; gene expression regulation; host-parasitoid relationships; insect venoms; parasitic wasps; parasitism; predatory insects; recombinant proteins; serpins; teratocytes
Abstract:
... BACKGROUND: Parasitic wasps are an important group of entomophagous insects for pest control. As parasitic wasps often lay eggs on or into their associated hosts, parasitoids evolve to utilize several factors including venom, polydnavirus (PDV) to alter host physiology for successful parasitism. Some taxa of endoparasitoids produce teratocytes, which are a type of cell that is released into host i ...
DOI:
10.1002/ps.6515

13. Potential impacts of the Southern Hemisphere polar vortices on central-eastern China haze pollution during boreal early winter

Author:
Zhiwei Wu,   et al.   ; Luyu Chang; Jianming Xu;     Show all 3 Authors
Source:
Climate dynamics 2020 v.55 no.3-4 pp. 771-787
ISSN:
0930-7575
Subject:
air; atmospheric circulation; autumn; climate; dynamics; empirical models; evolution; observational studies; pollution; prediction; river deltas; stratosphere; surface water temperature; transportation; troposphere; wind speed; winter; China; Western Australia; Yangtze River
Abstract:
... Understanding the spatial–temporal evolution of China haze pollution (HP) and identifying its precursory signals is of central importance. Based on observational data across central-eastern China (CEC) for the period of 1980–2015, this study finds that HP interannual variations in the CEC region during the most polluted season (December–January) are mainly dominated by a homogeneous pattern with m ...
DOI:
10.1007/s00382-020-05294-3

14. The strengthened relationship between the Yangtze River Valley summer rainfall and the Southern Hemisphere annular mode in recent decades

Author:
Zhiwei Wu,   et al.   ; Juan Dou; Jianping Li;     Show all 3 Authors
Source:
Climate dynamics 2020 v.54 no.3-4 pp. 1607-1624
ISSN:
0930-7575
Subject:
climate; heat transfer; latent heat; models; rain; river valleys; spring; summer; surface water temperature; Indian Ocean; Yangtze River
Abstract:
... This paper reveals a change in the relationship between the Yangtze River valley (YRV) summer rainfall (YRVSR) and the spring Southern Hemisphere annular mode (SAM) during the period of 1958–2012. It is found that the positive correlation between the YRVSR and the previous May SAM is insignificant during the period of 1958–1987 (P1), while it becomes significant during the period of 1988–2012 (P2) ...
DOI:
10.1007/s00382-019-05078-4

15. How can the winter North Atlantic Oscillation influence the early summer precipitation in Northeast Asia: effect of the Arctic sea ice

Author:
Zhiwei Wu,   et al.   ; Peng Zhang; Rui Jin;     Show all 3 Authors
Source:
Climate dynamics 2021 v.56 no.5-6 pp. 1989-2005
ISSN:
0930-7575
Subject:
Japan; North Atlantic Oscillation; agricultural productivity; climate; dynamics; empirical models; rain; sea ice; spring; summer; water vapor; winter; Arctic Ocean; Arctic region; Barents Sea; Korean Peninsula
Abstract:
... The early summer (May–June) precipitation in Northeast Asia (NEA) accounts for about 25% of the annual total, which is important for the local agriculture production. The potential influencing factors and the related mechanisms of early summer NEA precipitation variability, however, are not fully understood. Our study suggests that a dipolar NEA precipitation anomaly pattern in May–June highly res ...
DOI:
10.1007/s00382-020-05570-2

16. Role of cloud radiative feedback in the Madden–Julian oscillation dynamics: a trio-interaction model analysis

Author:
Zhiwei Wu,   et al.   ; Can Cao; Fei Liu;     Show all 3 Authors
Source:
Theoretical and applied climatology 2021 v.145 no.1-2 pp. 489-499
ISSN:
0177-798X
Subject:
Madden-Julian Oscillation; climatology; models; troposphere
Abstract:
... The authors expand the original wave dynamic-moisture (WM) model by implementing the cloud radiative feedback (CRF) to study the role of the CRF in the Madden–Julian oscillation (MJO) in comparison with the role of the planetary boundary layer (PBL) process. The linear instability analysis is used to elucidate the reactions of the WM mode, WM-CRF mode, WM-PBL mode, and WM-PBL-CRF mode. Compared wi ...
DOI:
10.1007/s00704-021-03641-w

17. Wasserstein metric-based Boltzmann entropy of a landscape mosaic: a clarification, correction, and evaluation of thermodynamic consistency

Author:
Zhiwei Wu,   et al.   ; Peichao Gao; Hong Zhang;     Show all 3 Authors
Source:
Landscape ecology 2021 v.36 no.3 pp. 815-827
ISSN:
0921-2973
Subject:
entropy; landscape ecology; landscapes
Abstract:
... CONTEXT: Boltzmann entropy, also called thermodynamic entropy, has long been suggested and recently reemphasized as a basis for achieving a profound understanding of landscape dynamics with thermodynamic insights. The difficulty in practically applying this entropy lies in its computation with landscapes, and many solutions have attempted to address this. The latest solution for landscape mosaics ...
DOI:
10.1007/s10980-020-01177-4

18. Seasonal prediction of the northern and southern temperature modes of the East Asian winter monsoon: the importance of the Arctic sea ice

Author:
Zhiwei Wu,   et al.   ; Peng Zhang; Jianping Li; Ziniu Xiao;     Show all 4 Authors
Source:
Climate dynamics 2020 v.54 no.7-8 pp. 3583-3597
ISSN:
0930-7575
Subject:
El Nino; air temperature; autumn; climate; cold; cooling; empirical models; monsoon season; prediction; sea ice; snowpack; winter; Arctic Ocean; East Asia
Abstract:
... Previous research work found that two distinct surface air temperature (SAT) modes—the northern (N-) and the southern (S-) modes dominate the East Asian winter monsoon (EAWM) region. The inter-annual variations of these two modes were mainly attributed to preceding Siberian snow cover anomalies and El Niño–Southern Oscillation (ENSO). Observed evidence in this study shows that sea ice anomalies on ...
DOI:
10.1007/s00382-020-05182-w

19. Reexamining the relationship of La Niña and the East Asian Winter Monsoon

Author:
Zhiwei Wu,   et al.   ; Peng Zhang; Jianping Li;     Show all 3 Authors
Source:
Climate dynamics 2019 v.53 no.1-2 pp. 779-791
ISSN:
0930-7575
Subject:
La Nina; air; air temperature; climate; cold; cooling; monsoon season; surface water temperature; troposphere; winter; China; Korean Peninsula
Abstract:
... The northern and the southern modes are two distinct principle modes that dominate the winter mean surface air temperature (Ts) variations over East Asia (EA). The cold southern mode is represented by a significant cooling south of 45°N and is linked to La Niña events. An objective criterion, which could distinguish the spatial distributions and the maximum center of sea surface temperature anomal ...
DOI:
10.1007/s00382-019-04613-7

20. A comparison of haze pollution variability in China using haze indices based on observations

Author:
Zhiwei Wu,   et al.   ; Luyu Chang; Jianming Xu;     Show all 3 Authors
Source:
Science of the total environment 2020 v.715 pp. 136929
ISSN:
0048-9697
Subject:
aerosols; basins; issues and policy; particulates; pollution; weather; China; Yangtze River
Abstract:
... Defining the occurrence and degree of haze pollution (HP) in China has been extremely controversial in recent years. This study elaborates on the meanings of ten most frequently used HP indices based on observation and compares their performance in measuring the HP variability in China concerning the annual cycle, interannual variations and interdecadal trends for the period of 1980–2015. It is fo ...
DOI:
10.1016/j.scitotenv.2020.136929