Abstract Terrestrial water storage (TWS) is a critical component for sustainable societal development and ecosystem cycles. The Gravity Recovery Climate Experiment satellites have tracked changes in global TWS under the combined effects of various factors with unprecedented accuracy since 2002. In this study, we separate trends driven by precipitation non‐precipitation Chinese mainland from 2003 to 2016 based on statistical reconstruction method linear regression analyze driving mechanisms...

Flash droughts, a type of extreme event characterized by the sudden onset and rapid intensification drought conditions with severe impacts on ecosystems, have become more frequent in recent years due to global warming. The index is an effective way monitor mitigate its negative impact human production life. This study presents new flash identification monitoring method based evapotranspiration-based index, i.e., evaporative stress percentile (ESP). ESP-based considers both rate each phase...

Flash droughts tend to cause severe damage agriculture due their characteristics of sudden onset and rapid intensification. Early detection the response vegetation flash is utmost importance in mitigating effects droughts, as it can provide a scientific basis for establishing an early warning system. The commonly used method determining time drought, based on index or correlation between precipitation anomaly growth anomaly, leads late irreversible drought vegetation, which may not be...

Climate change, population growth, and economic development exacerbate water scarcity. This study investigates the impact of drought on availability in Belt Road region using high-resolution remote sensing data from 2001 to 2020. The results revealed an average (precipitation minus evapotranspiration) 249 mm/year a declining trend region. Approximately 13% faces deficits (evapotranspiration exceeds precipitation), primarily arid semi-arid regions with high frequency. area deficit is...

Abstract Wheat starch digestibility is crucial for its nutritional value, yet the impact of kernel hardness, protein content, and total content on this process remains unclear. To investigate this, we analysed 272 wheat varieties that were collected worldwide hardness index (HI), grain (GP), (TS), rapidly digestible (RDS), slowly (SDS), resistant (RS). Correlation regression analysis revealed increased associated with higher RDS lower SDS, while GP negatively correlates RS, TS positively...

The tiger shrimp Penaeus monodon is a commercially important species; however, the intensification of farming this species has led to production and release significant amounts organic waste. Traditional aquaculture uses water exchange for waste removal, which may cause pollution infection reared with external pathogens. This study aimed evaluate effects two different modes on antioxidant status, nonspecific immune response, growth performance P. monodon, reveal differences in their...

Evaluating the performance of irrigation water use is essential for efficient and sustainable resource management. However, existing approaches often lack systematic quantification consumption fail to differentiate between precipitation anthropogenic appropriation flows. Building on green–blue concept, consumptive use, assumed equal actual evapotranspiration (ETa), was partitioned into green ET (GET) blue (BET) using remote sensing data Budyko hypothesis. A novel BET metric developed applied...

This paper evaluated the accuracy of multiple satellite-based precipitation products including tropical rainfall measuring mission multisatellite analysis (TMPA) (TMPA 3B42RT and TMPA 3B42 version 7) Climate Prediction Center MORPHing technique (CMORPH) (CMORPH RAW CMORPH BLD 1.0) datasets investigated impact temporal coverage these data on reliability standardized index (SPI) estimates. The SPI was compared with estimate using in situ observations from 2221 meteorological observation sites...

Based on surface energy balance and the assumption of fairly invariant evaporative fraction (EF) during daytime, this study proposes a new parameterization scheme directly estimating daily EF. Daily EF is parameterized as function temporal variations in temperature, air net radiation. The proposed can well reproduce estimates from soil-vegetation-atmosphere transfer (SVAT) model with root mean square error (RMSE) 0.13 coefficient determination (R2) 0.719. When input variables situ...

Satellite-based models have been widely used to estimate gross primary production (GPP) of terrestrial ecosystems. Although they many advantages for mapping spatiotemporal variations regional or global GPP, the performance in agroecosystems is relatively poor. In this study, a light-use-efficiency model cropland GPP estimation, named EF-LUE, driven by remote sensing data, was developed integrating evaporative fraction (EF) as limiting factor accounting soil water availability. Model...

Evapotranspiration (ET) is an important ecohydrological process especially in arid and semi-arid regions. In current study, a process-based model named ETMonitor was developed to estimate the ET, based mainly on biophysical hydrological parameters retrieved from satellite earth observations. And global daily ET 2008 2012 with spatial resolution of 1 km estimated multi-source observations datasets. The agreed well situ at field scale, R <sup xmlns:mml="http://www.w3.org/1998/Math/MathML"...

Thailand is characterized by typical tropical monsoon climate, and suffering serious water related problems, including seasonal drought flooding. These issues are highly to the hydrological processes, e.g., precipitation evapotranspiration (ET), which helpful understand cope with these problems. It critical study spatiotemporal pattern of ET in support local resource management. In current study, daily was estimated over ETMonitor, a process-based model, mainly satellite earth observation...

Changes in land use are likely to affect the abundance and functioning of microorganisms soil. In C hina many paddy fields being converted for vegetable growing. We wished determine how these changes affected microbial populations one particular region H unan province, where climate is subtropical monsoon, as an example. sampled soil down 1 m several fields: three that were still growing rice, had been 2 years earlier vegetables 25 years. Quantitative polymerase chain reaction ( qPCR )...

Shallow lake sediments have huge potential for carbon storage, but they are vulnerable to various environmental changes and highly susceptible becoming a source of emissions. Understanding the amount sediment storage can provide information about shallow lakes in mitigating climate change. In this study, sampling was conducted at 12 study sites Chaohu Lake, China, water content, grain size, bulk density, organic (SOC) content were examined five layers along vertical direction, respectively,...

Improving irrigation water management is a key concern for the agricultural sector, and it requires extensive comprehensive tools that provide complete knowledge of crop use requirements. This study presents novel methodology to explicitly estimate daily gross net requirements, actual use, efficiency center pivot systems, by mainly utilizing Sentinel-2 MultiSpectral Instrument (MSI) imagery at farm scale. ETMonitor model adapted (as sum canopy transpiration evaporation intercepted from soil)...

Abstract With the complex nature of land surfaces, more attention should be paid to performance remotely sensed models estimate evapotranspiration from moderate and low spatial resolution data. Taking into account characteristic a stable evaporative fraction (EF) in daytime, this paper uses surface energy balance system (SEBS) EF MODIS data for subtropical evergreen coniferous plantation southern China evaluates stability SEBS model estimating under conditions. The results show that...

Abstract. Lake ice, serving as a sensitive indicator of climate change, is an important regulator regional hydroclimate and lake ecosystems. For ice-covered lakes, traditional satellite altimetry-based water level estimation often subject to winter anomalies that are closely related the thickening ice. Despite recent efforts made exploit altimetry data resolve two interrelated variables, i.e., ice thickness (LIT) several issues remain unsolved, including inability estimate LIT with...

Soil moisture is an important parameter that influences the exchange of water and energy fluxes between land surface atmosphere. Through simulation by a Soil–Vegetation–Atmosphere Transfer model, Carlson proposed universal spatial information-based method to determine soil insensitive initial atmospheric conditions, net radiation, correction. In this study, practical normalized model established describe relationship among (M), temperature (T*), fractional vegetation cover. The dry wet...

To integrate soil moisture into the algorithm of Moderate Resolution Imaging Spectroradiometer (MODIS) global evapotranspiration (ET) project (MOD16), two improvements were implemented: layers relative parameters combined with a surface resistance model; and complementary relationship was replaced Penman-Monteith (P-M) method to estimate dry evaporation. In vegetation model, multiplier Rsm1 added, influence in root zone accounted for. an empirical exponential used. calculate parameters,...

A drought-induced water storage deficit index (D-WSDI) was proposed to quantify the response of GRACE-based terrestrial change meteorological drought and impact on deficit. D-WSDI defined as normalized residual component GRACE time series data after removing long-term trend seasonal components. The evaluation based Emergency Events Database (EM-DAT) showed that more than 90% global events from 2002 2019 led deficit, which can be detected by D-WSDI. severity caused increases with extending...