@article{fdi:010082797, title = {{S}now lapse rate changes in the {A}tlas {M}ountain in {M}orocco based on {MODIS} time series during the period 2000-2016}, author = {{M}archane, {A}. and {B}oudhar, {A}. and {B}aba, {M}. {W}. and {H}anich, {L}. and {C}hehbouni, {A}bdelghani}, editor = {}, language = {{ENG}}, abstract = {{T}he spatio-temporal distribution of snow cover metrics in a mountainous area is mainly related to the climatic conditions as well as to the prevailing morphological conditions. {T}he present study aimed to investigate the altitudinal sensitivity of snow cover metrics using the {MODIS} {T}erra snow cover product ({MOD}10{A}1 v5). {A}nnual snow metrics, including start of snow season ({SOSS}), end of snow season ({EOSS}), and snow cover duration ({SCD}) were extracted from snow-covered area ({SCA}) maps, which had been pre-processed using a cloud removal algorithm; the maps were of the {A}tlas {M}ountains, taken from the period of 2001-2016. {I}n addition, a linear regression was applied to derive an annual altitudinal gradient for each snow metric in relation to various spatial scales in order to analyze the interdependency between snow and topography, and especially to assess the potential temporal trend of the snow gradient. {R}esults indicated that elevation was the principal regulator of snow presence where snow was mostly accumulated above 2500 m. {T}he annual altitudinal gradients for {EOSS} and {SCD} showed a marked negative trend beginning in 2007. {H}owever, the {SOSS} altitudinal gradient was marked by a positive trend. {T}he mean {SCD} gradient for the entire {A}tlas {M}ountains decreased from 6 days/100 m to 3 days/100 m. {T}his is a new and important finding since it may indicate the impact of climate change on the dynamics of snow metrics and provides guidance for water managers to better manage the snowmelt water with different terrain features.}, keywords = {{MODIS} ; snow ; topographic ; gradient ; {A}tlas {M}ountains ; {MAROC} ; {ATLAS}}, booktitle = {}, journal = {{R}emote {S}ensing}, volume = {13}, numero = {17}, pages = {3370 [15 p.]}, year = {2021}, DOI = {10.3390/rs13173370}, URL = {https://www.documentation.ird.fr/hor/fdi:010082797}, }