Assessing methods in fusion and fitting for time series construction in remote sensing-based earth observations DOI Creative Commons
Jia Tang, Virgílio A. Bento, Dalei Hao

et al.

GIScience & Remote Sensing, Journal Year: 2025, Volume and Issue: 62(1)

Published: April 4, 2025

Language: Английский

Drought characteristics and dominant factors across China: Insights from high-resolution daily SPEI dataset between 1979 and 2018 DOI
Lingling Wan, Virgílio A. Bento,

Yanping Qu

et al.

The Science of The Total Environment, Journal Year: 2023, Volume and Issue: 901, P. 166362 - 166362

Published: Aug. 19, 2023

Language: Английский

Citations

75
An improved global vegetation health index dataset in detecting vegetation drought DOI Creative Commons
Jingyu Zeng, Tao Zhou,

Yanping Qu

et al.

Scientific Data, Journal Year: 2023, Volume and Issue: 10(1)

Published: May 31, 2023

Due to global warming, drought events have become more frequent, which resulted in aggravated crop failures, food shortage, larger and energetic wildfires, seriously affected socio-economic development agricultural production. In this study, a long-term (1981-2021), high-resolution (4 km) improved vegetation health index (VHI) dataset integrating climate, soil moisture was developed. Based on records from the Emergency Event Database, we compared detection efficiency of VHI before after its improvement occurrence scope observed events. The reached values as high 85%, is 14% higher than original dataset. also sensitive mild droughts accurate regarding extent droughts. This can play an important role monitoring but has potential assess impact agricultural, forestry, ecological environmental sectors.

Language: Английский

Citations

57
The first high spatial resolution multi-scale daily SPI and SPEI raster dataset for drought monitoring and evaluating over China from 1979 to 2018 DOI Creative Commons
Rongrong Zhang, Virgílio A. Bento, Junyu Qi

et al.

Big Earth Data, Journal Year: 2023, Volume and Issue: 7(3), P. 860 - 885

Published: Jan. 3, 2023

Standardized Precipitation Index (SPI) and Evapotranspiration (SPEI), traditionally derived at a monthly scale, are widely used drought indices. To overcome temporal-resolution limitations, we have previously developed published well-validated daily SPI/SPEI in situ dataset. Although having high temporal resolution, this dataset presents low spatial resolution due to the scarcity of stations. Therefore, based on China Meteorological Forcing Dataset, which is composed data from more than 1,000 ground-based observation sites multiple remote sensing grid meteorological dataset, present first spatiotemporal-resolution raster datasets over China. It spans 1979 2018, with 0.1° × 0.1°, 1-day, timescales 30-, 90-, 360-days. Results show that distributions event characteristics detected by consistent SPI/SPEI. The correlation between value 12-month scale strongest, linear correlation, Nash-Sutcliffe coefficient, normalized root mean square error 0.98, 0.15, 0.32, respectively. shown be sensitive flash Our improved shows accuracy credibility, presenting enhanced results when compared total volume up 150 GB, compressed 91 GB Network Common Data Form (NetCDF). can available Figshare (https://doi.org/10.6084/m9.figshare.c.5823533) ScienceDB (https://doi.org/10.57760/sciencedb.j00076.00103).

Language: Английский

Citations

56
Understanding climate change impacts on drought in China over the 21st century: a multi-model assessment from CMIP6 DOI Creative Commons
Feng Xu,

Yanping Qu,

Virgílio A. Bento

et al.

npj Climate and Atmospheric Science, Journal Year: 2024, Volume and Issue: 7(1)

Published: Jan. 30, 2024

Abstract The future state of drought in China under climate change remains uncertain. This study investigates events, focusing on the region China, using simulations from five global models (GCMs) three Shared Socioeconomic Pathways (SSP1-2.6, SSP3-7.0, and SSP5-8.5) participating Inter-Sectoral Impact Model Intercomparison Project (ISIMIP3b). daily Standardized Precipitation Evapotranspiration Index (SPEI) is employed to analyze severity, duration, frequency over periods. Evaluation GCMs’ against observational data indicates their effectiveness capturing historical climatic across China. rapid increase CO 2 concentration high-emission scenarios mid- late-future century (2040–2070 2071–2100) substantially influences vegetation behavior via regulation leaf stomata canopy structure. decelerates potential evapotranspiration, thereby mitigating sharp rise occurrences These findings offer valuable insights for policymakers stakeholders develop strategies measures adapting conditions

Language: Английский

Citations

54
Satellite remote sensing of vegetation phenology: Progress, challenges, and opportunities DOI
Zheng Gong, Wenyan Ge, Jiaqi Guo

et al.

ISPRS Journal of Photogrammetry and Remote Sensing, Journal Year: 2024, Volume and Issue: 217, P. 149 - 164

Published: Aug. 29, 2024

Language: Английский

Citations

28
Mapping and classification of Liao River Delta coastal wetland based on time series and multi-source GaoFen images using stacking ensemble model DOI Creative Commons

Huiya Qian,

Nisha Bao,

Dantong Meng

et al.

Ecological Informatics, Journal Year: 2024, Volume and Issue: 80, P. 102488 - 102488

Published: Jan. 20, 2024

Language: Английский

Citations

19
The Effect of Drought on Vegetation Gross Primary Productivity under Different Vegetation Types across China from 2001 to 2020 DOI Creative Commons
Xiaoping Wu, Rongrong Zhang, Virgílio A. Bento

et al.

Remote Sensing, Journal Year: 2022, Volume and Issue: 14(18), P. 4658 - 4658

Published: Sept. 18, 2022

Climate change has exacerbated the frequency and severity of droughts worldwide. Evaluating response gross primary productivity (GPP) to drought is thus beneficial improving our understanding impact on carbon cycle balance. Although many studies have investigated relationship between vegetation dry/wet conditions, capability different indices assessing influence water deficit not well understood. Moreover, few consider effects with a focus periods drought. Here, we spatial-temporal patterns GPP, standardized precipitation evapotranspiration index (SPEI), vapor pressure (VPD) in China from 2001 2020 examined GPP deficit/drought for types. The results revealed that SPEI were positively correlated over approximately 70.7% total area, VPD was negatively about 66.2% domain. Furthermore, more affected by summer autumn. During drought, greatest negative deciduous forests croplands, woody savannas least impacted. This research provides scientific reference developing mitigation adaptation measures lessen disasters under changing climate.

Language: Английский

Citations

65
Remote sensing monitoring of the spatiotemporal dynamics of urban forest phenology and its response to climate and urbanization DOI Creative Commons

Mengchen Hu,

Xuejian Li, Yanxin Xu

et al.

Urban Climate, Journal Year: 2024, Volume and Issue: 53, P. 101810 - 101810

Published: Jan. 1, 2024

Urban forests are an important part of urban ecosystems, and forest phenology is extraordinary significance for exploring climate change in terrestrial ecosystems related issues arising from urbanization. In this study, the Hangzhou was extracted using dynamic thresholding method based on MODIS EVI data 2001 to 2020 by reconstructing time series through double logistic function. Additionally, study combines (temperature, precipitation) urbanization indicators (impervious surface, urban–rural gradient) analyze response The results showed that as a whole tended have advanced start growing season (SOS), delayed end (EOS), extended length (LOS). greater region's urbanization, more obvious trend. change, temperature had most significant effect phenology, with SOS advancing 0.4 days EOS delaying 0.3 every 1 °C increase temperature. Our contributes understanding serves reference subtropical phenology.

Language: Английский

Citations

12
Characteristics of propagation from meteorological drought to ecological drought in China: Lag and cumulative effects DOI
Chenhao Ge, Peng Sun, Rui Yao

et al.

Atmospheric Research, Journal Year: 2024, Volume and Issue: 304, P. 107405 - 107405

Published: April 7, 2024

Language: Английский

Citations

9
Exploring the spatiotemporal heterogeneity of vegetation changes in subtropical humid karst region under CO2 fertilization DOI
Meng Chen, Qiuwen Zhou, Dawei Peng

et al.

Journal of Geographical Sciences, Journal Year: 2025, Volume and Issue: 35(1), P. 65 - 87

Published: Jan. 1, 2025

Language: Английский

Citations

1