Climate of the Marrakech High Atlas, Morocco: Temperature lapse rates and precipitation gradient from piedmont to summitsCitation formats

  • External authors:
  • Henk L. Cornelissen
  • Ali Rhoujjati
  • Lahoucine Hanich

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Climate of the Marrakech High Atlas, Morocco: Temperature lapse rates and precipitation gradient from piedmont to summits. / Bell, Benjamin A.; Hughes, Philip D.; Fletcher, William J.; Cornelissen, Henk L.; Rhoujjati, Ali; Hanich, Lahoucine; Braithwaite, Roger J.

In: Arctic, Antarctic and Alpine Research, Vol. 54, No. 1, 01.04.2022, p. 78-95.

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Bell, Benjamin A. ; Hughes, Philip D. ; Fletcher, William J. ; Cornelissen, Henk L. ; Rhoujjati, Ali ; Hanich, Lahoucine ; Braithwaite, Roger J. / Climate of the Marrakech High Atlas, Morocco: Temperature lapse rates and precipitation gradient from piedmont to summits. In: Arctic, Antarctic and Alpine Research. 2022 ; Vol. 54, No. 1. pp. 78-95.

Bibtex

@article{f2dea35f300441b78de26e091c2c8905,
title = "Climate of the Marrakech High Atlas, Morocco: Temperature lapse rates and precipitation gradient from piedmont to summits",
abstract = "Understanding mountain climates poses many challenges, because difficult terrain leads to a sparsity of weather stations and therefore poor data availability, meaning the detailed information required to understand these complex systems is lacking. Here, we analyze eleven years of half-hourly climate observations from the Joint International Laboratory LMI-TREMA (T{\'e}l{\'e}d{\'e}tection et Ressources en Eau en M{\'e}diterran{\'e}e semi-Aride) network of weather stations in the Marrakech High Atlas, Morocco, providing detailed information about the climate in this area. Our analysis shows the mean annual near-surface temperature lapse rate is −4.63°C km−1, with an uncertainty range of −4.39 to −4.85°C km−1, lower than the standard environmental temperature lapse rate. Mean temperature lapse rates vary from −3.67°C to −5.21°C km−1 monthly, and throughout the day from −2.75°C to −7.1°C km−1, which has important implications for understanding snowpack variations at the highest elevations. Understanding precipitation is inherently complex, but our analysis shows that mean annual precipitation increases by 166 mm km−1 (150.6 to 183.7 mm km−1) with a significant snow component at the highest elevations. This analysis improves our understanding of the mountain climate system with new regional temperate lapse rates and precipitation gradients, having the potential to improve gridded climatologies and climate models, with relevance for the wider High Atlas region.",
author = "Bell, {Benjamin A.} and Hughes, {Philip D.} and Fletcher, {William J.} and Cornelissen, {Henk L.} and Ali Rhoujjati and Lahoucine Hanich and Braithwaite, {Roger J.}",
year = "2022",
month = apr,
day = "1",
doi = "10.1080/15230430.2022.2046897",
language = "English",
volume = "54",
pages = "78--95",
journal = "Arctic, Antarctic and Alpine Research",
issn = "1523-0430",
publisher = "University of Colorado, Institute of Arctic and Alpine Research",
number = "1",

}

RIS

TY - JOUR

T1 - Climate of the Marrakech High Atlas, Morocco: Temperature lapse rates and precipitation gradient from piedmont to summits

AU - Bell, Benjamin A.

AU - Hughes, Philip D.

AU - Fletcher, William J.

AU - Cornelissen, Henk L.

AU - Rhoujjati, Ali

AU - Hanich, Lahoucine

AU - Braithwaite, Roger J.

PY - 2022/4/1

Y1 - 2022/4/1

N2 - Understanding mountain climates poses many challenges, because difficult terrain leads to a sparsity of weather stations and therefore poor data availability, meaning the detailed information required to understand these complex systems is lacking. Here, we analyze eleven years of half-hourly climate observations from the Joint International Laboratory LMI-TREMA (Télédétection et Ressources en Eau en Méditerranée semi-Aride) network of weather stations in the Marrakech High Atlas, Morocco, providing detailed information about the climate in this area. Our analysis shows the mean annual near-surface temperature lapse rate is −4.63°C km−1, with an uncertainty range of −4.39 to −4.85°C km−1, lower than the standard environmental temperature lapse rate. Mean temperature lapse rates vary from −3.67°C to −5.21°C km−1 monthly, and throughout the day from −2.75°C to −7.1°C km−1, which has important implications for understanding snowpack variations at the highest elevations. Understanding precipitation is inherently complex, but our analysis shows that mean annual precipitation increases by 166 mm km−1 (150.6 to 183.7 mm km−1) with a significant snow component at the highest elevations. This analysis improves our understanding of the mountain climate system with new regional temperate lapse rates and precipitation gradients, having the potential to improve gridded climatologies and climate models, with relevance for the wider High Atlas region.

AB - Understanding mountain climates poses many challenges, because difficult terrain leads to a sparsity of weather stations and therefore poor data availability, meaning the detailed information required to understand these complex systems is lacking. Here, we analyze eleven years of half-hourly climate observations from the Joint International Laboratory LMI-TREMA (Télédétection et Ressources en Eau en Méditerranée semi-Aride) network of weather stations in the Marrakech High Atlas, Morocco, providing detailed information about the climate in this area. Our analysis shows the mean annual near-surface temperature lapse rate is −4.63°C km−1, with an uncertainty range of −4.39 to −4.85°C km−1, lower than the standard environmental temperature lapse rate. Mean temperature lapse rates vary from −3.67°C to −5.21°C km−1 monthly, and throughout the day from −2.75°C to −7.1°C km−1, which has important implications for understanding snowpack variations at the highest elevations. Understanding precipitation is inherently complex, but our analysis shows that mean annual precipitation increases by 166 mm km−1 (150.6 to 183.7 mm km−1) with a significant snow component at the highest elevations. This analysis improves our understanding of the mountain climate system with new regional temperate lapse rates and precipitation gradients, having the potential to improve gridded climatologies and climate models, with relevance for the wider High Atlas region.

U2 - 10.1080/15230430.2022.2046897

DO - 10.1080/15230430.2022.2046897

M3 - Article

VL - 54

SP - 78

EP - 95

JO - Arctic, Antarctic and Alpine Research

JF - Arctic, Antarctic and Alpine Research

SN - 1523-0430

IS - 1

ER -