L. Baker Perry
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View article: Landsystems of the tropical high Peruvian Andes: glaciers, lakes, wetlands and water resources in the Cordillera Vilcanota 
Landsystems of the tropical high Peruvian Andes: glaciers, lakes, wetlands and water resources in the Cordillera Vilcanota  Open
The food and water security of 90 million people depends on the Andean Mountain water tower, which is at risk in several regions because climate change is altering water storage in high altitude wetlands (bofedales), lakes, snow and glacie…
View article: The impact of supraglacial ice cliff and pond formation on debris-free, tropical glacier mass loss
The impact of supraglacial ice cliff and pond formation on debris-free, tropical glacier mass loss Open
Tropical Andean glaciers provide an important flux of freshwater to communities living both in high-altitude Cordillera and population centres downstream in countries such as Peru and Bolivia. Glacier recession threatens the sustainability…
View article: Retreat and frontal ablation rates for Alaska’s lake-terminating glaciers: Investigating potential physical controls with implications for future stability
Retreat and frontal ablation rates for Alaska’s lake-terminating glaciers: Investigating potential physical controls with implications for future stability Open
Globally, glaciers are changing in response to climate warming, with those that terminate in water often undergoing the most rapid change. In Alaska and northwest Canada, proglacial lakes have grown in number and size but their influence o…
View article: Brief communication: Accurate and autonomous snow water equivalent measurements using a cosmic ray sensor on a Himalayan glacier
Brief communication: Accurate and autonomous snow water equivalent measurements using a cosmic ray sensor on a Himalayan glacier Open
We analyze snow water equivalent (SWE) measurements from a cosmic ray sensor (CRS) on the lower accumulation area of Mera Glacier (central Himalaya, Nepal) between November 2019 and November 2021. The CRS aligned well with field observatio…
View article: At-scale Model Output Statistics in mountain environments (AtsMOS v1.0)
At-scale Model Output Statistics in mountain environments (AtsMOS v1.0) Open
This paper introduces the AtsMOS (At-scale Model Output Statistics) workflow, designed to enhance mountain meteorology predictions through the downscaling of coarse numerical weather predictions using local observational data. AtsMOS provi…
View article: Bofedal wetland and glacial melt contributions to dry season streamflow in a high‐Andean headwater watershed
Bofedal wetland and glacial melt contributions to dry season streamflow in a high‐Andean headwater watershed Open
In the context of expected future melt reductions in the high‐Andes, the buffering capacity of non‐glacial stores, and especially of high‐altitude bofedal wetlands, is of increasing importance. Isotope signatures potentially indicative of …
View article: Brief Communication: Accurate and autonomous snow water equivalent measurements using a cosmic ray sensor on a Himalayan glacier
Brief Communication: Accurate and autonomous snow water equivalent measurements using a cosmic ray sensor on a Himalayan glacier Open
We analyze snow water equivalent (SWE) measurements from a cosmic ray sensor (CRS) on the lower accumulation area of Mera Glacier (Central Himalaya, Nepal) between November 2019 and November 2021. The CRS aligned well with field observatio…
View article: Comment on gmd-2024-36
Comment on gmd-2024-36 Open
Abstract. This paper introduces the AtsMOS workflow, designed to enhance mountain meteorology predictions through the downscaling of coarse numerical weather predictions using local observational data. AtsMOS provides a modular, open-sourc…
View article: Comment on gmd-2024-36
Comment on gmd-2024-36 Open
Abstract. This paper introduces the AtsMOS workflow, designed to enhance mountain meteorology predictions through the downscaling of coarse numerical weather predictions using local observational data. AtsMOS provides a modular, open-sourc…
View article: At-scale Model Output Statistics in mountain environments (AtsMOS v1.0)
At-scale Model Output Statistics in mountain environments (AtsMOS v1.0) Open
This paper introduces the AtsMOS workflow, designed to enhance mountain meteorology predictions through the downscaling of coarse numerical weather predictions using local observational data. AtsMOS provides a modular, open-source toolkit …
View article: Establishing glacier proximal meteorological and glacier ablation stations in different climatic zones along the South American Andes.
Establishing glacier proximal meteorological and glacier ablation stations in different climatic zones along the South American Andes. Open
Climate change has had a significant impact on the behaviour of the high mountain cryosphere, with widespread glacier retreat and mass loss now occurring in most of the planet’s glacierised mountain ranges over multi-decadal timescal…
View article: Snowfall over the Andes: a convection-permitting climate model
Snowfall over the Andes: a convection-permitting climate model Open
The Andes has the longest mountain range in the world, stretching over 7000 kilometres from Colombia in the tropics to the bottom of Chile in the extratropics. Millions of people depend on water supply from the Andes for their consumption,…
View article: Insights from the first winter weather observations near Mount Everest's summit
Insights from the first winter weather observations near Mount Everest's summit Open
The highest reaches of our planet experience some of the most extreme weather on Earth and hold very significant supplies of freshwater for communities downstream. However, we know very little of the meteorological detail about this high-a…
View article: Genetic analysis of the frozen microbiome at 7900 m a.s.l., on the South Col of Sagarmatha (Mount Everest)
Genetic analysis of the frozen microbiome at 7900 m a.s.l., on the South Col of Sagarmatha (Mount Everest) Open
Microbial communities in alpine environments >7,500 m.a.s.l. have not been well studied using modern cultivation-independent sequencing approaches due to the challenges and danger asso - ciated with reaching such high elevations. For this …
View article: Genetic analysis of the frozen microbiome at 7900 m a.s.l., on the South Col of Sagarmatha (Mount Everest)
Genetic analysis of the frozen microbiome at 7900 m a.s.l., on the South Col of Sagarmatha (Mount Everest) Open
Microbial communities in alpine environments >7,500 m.a.s.l. have not been well studied using modern cultivation-independent sequencing approaches due to the challenges and danger associated with reaching such high elevations. For this rea…
View article: Prefacing unexplored archives from Central Andean surface-to-bedrock ice cores through a multifaceted investigation of regional firn and ice core glaciochemistry
Prefacing unexplored archives from Central Andean surface-to-bedrock ice cores through a multifaceted investigation of regional firn and ice core glaciochemistry Open
Shallow firn cores, in addition to a near-basal ice core, were recovered in 2018 from the Quelccaya ice cap (5470 m a.s.l) in the Cordillera Vilcanota, Peru, and in 2017 from the Nevado Illimani glacier (6350 m a.s.l) in the Cordillera Rea…
View article: Weather Observations Reach the Summit of Mount Everest
Weather Observations Reach the Summit of Mount Everest Open
The predictability of the weather on Mount Everest’s upper slopes can be a matter of life or death for those trying to climb the world’s highest mountain, yet the performance of forecasts has been almost unknown due to a lack of surface ob…
View article: Contribution of Glacier Runoff during Heat Waves in the Nooksack River Basin USA
Contribution of Glacier Runoff during Heat Waves in the Nooksack River Basin USA Open
The thirty-eight-year record (1984–2021) of glacier mass balance measurement indicates a significant glacier response to climate change in the North Cascades, Washington that has led to declining glacier runoff in the Nooksack Basin. Glaci…
View article: Mount Everest's photogenic weather during the post‐monsoon
Mount Everest's photogenic weather during the post‐monsoon Open
Mount Everest, known locally as Sagarmatha or Qomolangma, is the world's highest (8849m), and arguably most iconic, peak. That allure draws large numbers of tourists to Nepal every year with hopes of seeing or climbing the famed mountain. …
View article: Evaluation of Reanalysis Temperature and Precipitation for the Andean Altiplano and Adjacent Cordilleras
Evaluation of Reanalysis Temperature and Precipitation for the Andean Altiplano and Adjacent Cordilleras Open
This study compares temperature, precipitation, and other climate variables from six widely used climate reanalysis products to inform ice‐core climate proxy record calibration in the Altiplano region of the central Andes. The reanalyzes a…
View article: Processing of VENµS Images of High Mountains: A Case Study for Cryospheric and Hydro-Climatic Applications in the Everest Region (Nepal)
Processing of VENµS Images of High Mountains: A Case Study for Cryospheric and Hydro-Climatic Applications in the Everest Region (Nepal) Open
In the Central Himalayas, glaciers and snowmelt play an important hydrological role, as they ensure the availability of surface water outside the monsoon period. To compensate for the lack of field measurements in glaciology and hydrology,…
View article: Mt. Everest’s highest glacier is a sentinel for accelerating ice loss
Mt. Everest’s highest glacier is a sentinel for accelerating ice loss Open
Mountain glacier systems are decreasing in volume worldwide yet relatively little is known about their upper reaches (>5000 m). Here we show, based on the world’s highest ice core and highest automatic weather stations, the significant and…
View article: The Energy and Mass Balance of Peruvian Glaciers
The Energy and Mass Balance of Peruvian Glaciers Open
Peruvian glaciers are important contributors to dry season runoff for agriculture and hydropower, but they are at risk of disappearing due to climate change. We applied a physically based, energy balance melt model at five on‐glacier sites…
View article: Observations of Winter Ablation on Glaciers in the Mount Everest Region in 2020–2021
Observations of Winter Ablation on Glaciers in the Mount Everest Region in 2020–2021 Open
Recent observations of rising snow lines and reduced snow-covered areas on glaciers during the October 2020–January 2021 period in the Nepal–China region of Mount Everest in Landsat and Sentinel imagery highlight observations that signific…
View article: A case study using 2019 pre-monsoon snow and stream chemistry in the Khumbu region, Nepal
A case study using 2019 pre-monsoon snow and stream chemistry in the Khumbu region, Nepal Open
This case study provides a framework for future monitoring and evidence for human source pollution in the Khumbu region, Nepal. We analyzed the chemical composition (major ions, major/trace elements, black carbon, and stable water isotopes…
View article: Weather on <scp>Mount Everest</scp> during the 2019 summer <scp>monsoon</scp>
Weather on <span>Mount Everest</span> during the 2019 summer <span>monsoon</span> Open
Records from new high altitude weather stations reveal the meteorological conditions on Mt Everest during the 2019 monsoon. Using data from June–October, we show that the temperature, humidity and winds announce the arrival of the monsoon,…
View article: Quantifying the controls of Peruvian glacier response to climate
Quantifying the controls of Peruvian glacier response to climate Open
<p>Peruvian glaciers are important contributors to dry season runoff for agriculture and hydropower, but they are at risk of disappearing due to climate warming. Their energy balance and ablation characteristics have previously been …
View article: Precipitation Characteristics and Moisture Source Regions on Mt. Everest in the Khumbu, Nepal
Precipitation Characteristics and Moisture Source Regions on Mt. Everest in the Khumbu, Nepal Open
Precipitation is critical to the water towers of the Hindu Kush-Himalaya-Karakoram region, exerting an important control on glacier mass balance and the water resources for 1.65 billion people. Given that hydroclimatic extremes and water s…