@article{fdi:010094170, title = {{S}urging processes and mechanisms at small glaciers in the {Q}ilian {M}ountains, {N}orthwestern {C}hina, revealed by long-term, temporally dense remote sensing observations}, author = {{G}uo, {L}. and {L}i, {J}. and {C}harrier, {L}. and {D}ehecq, {A}maury and {B}eraud, {L}. and {L}i, {Z}. {W}. and {L}i, {X}. and {Z}hu, {J}. {J}. and {L}i, {L}. and {W}ang, {Y}. {Z}.}, editor = {}, language = {{ENG}}, abstract = {{A} glacier surge, an exceptional phenomenon of mass redistribution, is one of the least understood dynamic processes in cryospheric science. {L}ong-term detailed changes in glacier elevation and flow velocity are crucial for assessing surge dynamics. {H}owever, capturing complex changes during surges through traditional methods, especially on small and narrow valley glaciers, is often hampered by the limitations in spatiotemporal resolution of available satellite records. {I}n this study, we investigated the long-term changes of small surging glaciers in the {Q}ilian mountains whose dynamics remain poorly understood. {U}sing {ASTER} and {L}andsat imagery, we employed the two newly developed methods specifically designed for surging glaciers to derive long-term monthly flow velocity and elevation time series. {C}ombing with historical morphological analysis, our results successfully captured the detailed surging process of five glaciers. {O}ne glacier ({GLIMS} {ID}: {G}097781{E}38470{N}) experienced a major surge during 2002-2008, characterized by abrupt acceleration and mass transfer during 2002-2005. {O}ne glacier ({G}097762{E}38509{N}) underwent a surge with terminus advance prior to 2000. {T}wo glaciers ({G}097722{E}38519{N} and {G}097681{E}38536{N}) experienced gradual surges that lasted over 10 years. {T}he fifth glacier ({G}097731{E}38477{N}) shows early surge initiation, characterized by recent acceleration and thickening in its middle trunk. {C}onsidering the long duration, glacier surges in this region appear primarily thermal-controlled. {H}owever, the pre-surge stage and sudden mass release suggest a possible impact from saturated soft sediment failure. {T}his research demonstrates the potential of advanced time-series methods for revealing diverse surge patterns and surge evolution of small glaciers, and provides new insights into the surge dynamics in this region.}, keywords = {glacier surge ; time series ; {Q}ilian mountains ; remote sensing ; {CHINE}}, booktitle = {}, journal = {{J}ournal of {G}eophysical {R}esearch : {E}arth {S}urface}, volume = {130}, numero = {6}, pages = {e2024{JF}008157 [26 p.]}, ISSN = {2169-9003}, year = {2025}, DOI = {10.1029/2024jf008157}, URL = {https://www.documentation.ird.fr/hor/fdi:010094170}, }