Longwei Xiang

ORCID: 0000-0003-4182-0606
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Research Areas
  • Geophysics and Gravity Measurements
  • GNSS positioning and interference
  • Solar and Space Plasma Dynamics
  • Cryospheric studies and observations
  • Geomagnetism and Paleomagnetism Studies
  • Flood Risk Assessment and Management
  • Geological and Geophysical Studies
  • Geology and Paleoclimatology Research
  • Arctic and Antarctic ice dynamics
  • High-pressure geophysics and materials
  • Computational Physics and Python Applications
  • Groundwater and Isotope Geochemistry
  • Climate variability and models
  • Inertial Sensor and Navigation
  • earthquake and tectonic studies
  • Climate change and permafrost
  • Land Use and Ecosystem Services
  • Winter Sports Injuries and Performance
  • Remote Sensing and LiDAR Applications
  • Urban Heat Island Mitigation
  • Geophysical and Geoelectrical Methods
  • Hydrology and Watershed Management Studies
  • Remote Sensing and Land Use
  • Scientific Research and Discoveries
  • Earthquake Detection and Analysis

Yangtze University
2021-2025

Institute of Geodesy and Geophysics
2012-2023

Chinese Academy of Sciences
2012-2023

University of Chinese Academy of Sciences
2012-2019

Understanding groundwater storage (GWS) changes is vital to the utilization and control of water resources in Tibetan Plateau. However, well level observations are rare this big area, reliable hydrology models including GWS not available. We use hydro-geodesy quantitate Plateau surroundings from 2003 2009 using a combined analysis satellite gravity altimetry data, as model glacial isostatic adjustment (GIA). Release-5 GRACE data jointly used mascon fitting method estimate terrestrial (TWS)...

10.1016/j.epsl.2016.06.002 article EN cc-by-nc-nd Earth and Planetary Science Letters 2016-06-16

ABSTRACT The surface urban heat island (SUHI) effect presents a significant challenge in environments. However, there is spatiotemporal variability the SUHI and its drivers, which often overlooked. To address this issue, study employs geographically temporally weighted regression (GTWR) model to analyze heterogeneity of driving factors. findings reveal following: (1) SUHIs central area Wuhan are located mainly on both sides Yangtze Han Rivers, most notably Qingshan Industrial Zone; (2) city...

10.1111/tgis.70013 article EN Transactions in GIS 2025-02-01

Groundwater plays a major role in the hydrological processes driven by climate change and human activities, particularly upper mountainous basins. The Jinsha River Basin (JRB) is uppermost region of Yangtze largest hydropower production China. With construction artificial cascade reservoirs increasing this region, annual seasonal flows are changing affecting water cycles. Here, we first infer groundwater storage changes (GWSC), accounting for sediment transport JRB, combining Gravity...

10.1111/gwat.12966 article EN Ground Water 2019-11-27

Water resources are rich on the Tibetan Plateau, with large amounts of glaciers, lakes, and permafrost. Terrestrial water storage (TWS) Plateau has experienced a significant change in recent decades. However, there is lack research about spatial difference between TWSC lake (LWSC), which helpful to understand response climate change. In this study, we estimate TWS, (LWS), soil moisture, permafrost, respectively, according satellite model data during 2005−2013 inner glacial meltwater from...

10.3390/rs13101984 article EN cc-by Remote Sensing 2021-05-19

The Tibetan Plateau (TP) has the largest number of high-altitude glaciers on Earth. As a source major rivers in Asia, this region provides fresh water to more than one billion people. Any terrestrial storage (TWS) changes there have societal effects large parts continent. Due recent acceleration global warming, part environment TP become drastically unbalanced, with an increased risk disasters. We quantified secular and monthly glacier-mass-balance TWS basins from April 2002 December 2021...

10.3390/rs15143505 article EN cc-by Remote Sensing 2023-07-12

As global warming continues, the monitoring of changes in terrestrial water storage becomes increasingly important since it plays a critical role understanding change and resource management. In North America as elsewhere world, resources strongly impact agriculture animal husbandry. From combination Gravity Recovery Climate Experiment (GRACE) gravity Global Positioning System (GPS) data, is recently found that from August, 2002 to March, 2011 recovered after extreme Canadian Prairies...

10.1016/j.geog.2015.07.002 article EN cc-by-nc-nd Geodesy and Geodynamics 2015-07-01

Time series of the Gravity Recovery and Climate Experiment (GRACE) satellite mission have been successfully used to reveal changes in terrestrial water storage (TWS) many parts world. This has hindered interior Tibetan Plateau since derived TWS there are very sensitive selections different available GRACE solutions, filters remove north-south-oriented (N-S) stripe features observations. resulted controversial distributions previous studies. In this paper, we produce aggregated hydrology...

10.3390/rs14030544 article EN cc-by Remote Sensing 2022-01-24

GRACE-based estimates for groundwater storage (GWS) changes in North America substantially depend upon correction of glacial isostatic adjustment (GIA) effects, which are usually removed with GIA models. In this study, effects eliminated by employing an independent separation approach the aid Global Navigation Satellite System (GNSS) vertical velocity data. Our goal is to provide estimate monthly GWS within 1-degree-grids and their trends over whole GRACE mission lifetime from April 2002...

10.1016/j.geog.2021.10.003 article EN cc-by-nc-nd Geodesy and Geodynamics 2021-11-18

Abstract The Tibetan Plateau (TP) is suffering from a substantial decline in terrestrial water storage (TWS) exorheic basins, threatening resources that are critical for ∼2 billion people downstream. TWS changes commonly estimated using gravity satellites through observations of the total mass (TMS) change, with an implicit assumption negligible contribution sediment transport. Through long‐term (2002–2017) flux seven headwater basins on TP, we reveal satellite‐derived TMS has decreased at...

10.1029/2023gl107553 article EN cc-by-nc-nd Geophysical Research Letters 2024-08-08

Land surface water is a key part in the global ecosystem balance and hydrological cycle. Remote sensing has become an effective tool for its spatio-temporal monitoring. However, remote results exemplified so-called indices are subject to several limitations. This paper proposes new index called Sentinel Multi-Band Water Index (SMBWI) extract bodies complex environments from Sentinel-2 satellite imagery. Individual tests explore effectiveness of SMBWI eliminating interference various special...

10.3390/rs16152749 article EN cc-by Remote Sensing 2024-07-27

The crustal structure under the Tibetan Plateau is quite different from that given by commonly used Preliminary Reference Earth Model (PREM, Dziewonski and Anderson 1981). We investigate effects of such differences on inversion results water trend rates in area using simulated GRACE (Gravity Recovery Climate Experiment) GPS data. When data for inversion, are negligible, confirming validity PREM current even follow-on However, when data, very prominent suggesting an model with a realistic...

10.3319/tao.2012.09.21.01 article EN Terrestrial Atmospheric and Oceanic Sciences 2013-08-01

The crustal structure under the Tibetan Plateau is quite different from that given by commonly used Preliminary Reference Earth Model (PREM, Dziewonski and Anderson 1981).We investigate effects of such differences on inversion results water trend rates in area using simulated GRACE (Gravity Recovery Climate Experiment) GPS data.When data for inversion, are negligible, confirming validity PREM current even follow-on data.However, when data, very prominent suggesting an model with a realistic...

10.3319/tao.2012.09.21.01(tibxs) article EN cc-by Terrestrial Atmospheric and Oceanic Sciences 2013-01-01

We use the average crustal structure of CRUST1.0 model for Tibetan Plateau to establish a realistic earth termed as TC1P, and data from Global Land Data Assimilation System (GLDAS) hydrology Gravity Recovery Climate Experiment (GRACE) data, generate signals assumed in this study. Modeling surface radial displacements gravity variation is performed using both TC1P global Preliminary Reference Earth Model (PREM). Furthermore, inversions based on simulated Positioning (GPS) GRACE are PREM....

10.1016/j.geog.2015.05.002 article EN cc-by-nc-nd Geodesy and Geodynamics 2015-05-01

The GRACE twin satellite gravity mission from 2002 to 2017 has considerably improved investigations on global and regional hydrological changes. However, there are different solutions products available which may yield results for certain regions despite applying the same postprocessing time span. This is especially case Tibetan Plateau (TP) with its special conditions represented by localized but strong signals that can overlap or merge inside plateau, falsify determination of terrestrial...

10.3390/rs15225417 article EN cc-by Remote Sensing 2023-11-18
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