M. Ross Alexander
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View article: MARSHA: multi-agent RAG system for hazard adaptation
MARSHA: multi-agent RAG system for hazard adaptation Open
Large language models (LLMs) are a transformational capability at the frontier of artificial intelligence and machine learning that can support decision-makers in addressing pressing societal challenges such as extreme natural hazard event…
View article: A RAG-Based Multi-Agent LLM System for Natural Hazard Resilience and Adaptation
A RAG-Based Multi-Agent LLM System for Natural Hazard Resilience and Adaptation Open
Large language models (LLMs) are a transformational capability at the frontier of artificial intelligence and machine learning that can support decision-makers in addressing pressing societal challenges such as extreme natural hazard event…
View article: Global risk of precipitation deficits for tree-based cooling in cities
Global risk of precipitation deficits for tree-based cooling in cities Open
Trees are key sources of cooling in natural and urban ecosystems across the globe (1–3). Increasing tree cover is one popular nature-based approach to reducing excessive heat in cities where the majority of the world’s population lives (4–…
View article: WildfireGPT: Tailored Large Language Model for Wildfire Analysis
WildfireGPT: Tailored Large Language Model for Wildfire Analysis Open
Recent advancement of large language models (LLMs) represents a transformational capability at the frontier of artificial intelligence. However, LLMs are generalized models, trained on extensive text corpus, and often struggle to provide c…
View article: Coupling of Tree Growth and Photosynthetic Carbon Uptake Across Six North American Forests
Coupling of Tree Growth and Photosynthetic Carbon Uptake Across Six North American Forests Open
Linking biometric measurements of stand‐level biomass growth to tower‐based measurements of carbon uptake—gross primary productivity and net ecosystem productivity—has been the focus of numerous ecosystem‐level studies aimed to better unde…
View article: Joint effects of climate, tree size, and year on annual tree growth derived from tree‐ring records of ten globally distributed forests
Joint effects of climate, tree size, and year on annual tree growth derived from tree‐ring records of ten globally distributed forests Open
Tree rings provide an invaluable long‐term record for understanding how climate and other drivers shape tree growth and forest productivity. However, conventional tree‐ring analysis methods were not designed to simultaneously test effects …
View article: Adding Tree Rings to North America's National Forest Inventories: An Essential Tool to Guide Drawdown of Atmospheric CO2
Adding Tree Rings to North America's National Forest Inventories: An Essential Tool to Guide Drawdown of Atmospheric CO2 Open
Tree-ring time series provide long-term, annually resolved information on the growth of trees. When sampled in a systematic context, tree-ring data can be scaled to estimate the forest carbon capture and storage of landscapes, biomes, and—…
View article: Working across space and time: nonstationarity in ecological research and application
Working across space and time: nonstationarity in ecological research and application Open
Ecological research increasingly considers integrative relationships among phenomena at broad spatial and temporal domains. However, such large‐scale inferences are commonly confounded by changing properties in the processes that govern ph…
View article: Extended xylogenesis and stem biomass production in Juniperus przewalskii Kom. during extreme late-season climatic events
Extended xylogenesis and stem biomass production in Juniperus przewalskii Kom. during extreme late-season climatic events Open
View article: Allometric relationships between primary size measures and sapwood area for six common tree species in snow-dependent ecosystems in the Southwest United States
Allometric relationships between primary size measures and sapwood area for six common tree species in snow-dependent ecosystems in the Southwest United States Open
High-elevation, snow-dependent, semiarid ecosystems across southwestern United States are expected to be vulnerable to climate change, including drought and fire, with implications for various aspects of the water cycle. To that end, much …
View article: Linking drought legacy effects across scales: From leaves to tree rings to ecosystems
Linking drought legacy effects across scales: From leaves to tree rings to ecosystems Open
Severe drought can cause lagged effects on tree physiology that negatively impact forest functioning for years. These “drought legacy effects” have been widely documented in tree‐ring records and could have important implications for our u…
View article: Evaluating the effect of alternative carbon allocation schemes in a land surface model (CLM4.5) on carbon fluxes, pools, and turnover in temperate forests
Evaluating the effect of alternative carbon allocation schemes in a land surface model (CLM4.5) on carbon fluxes, pools, and turnover in temperate forests Open
How carbon (C) is allocated to different plant tissues (leaves, stem, and roots) determines how long C remains in plant biomass and thus remains a central challenge for understanding the global C cycle. We used a diverse set of observation…
View article: Evaluating the effect of alternative carbon allocation schemes in a land surfacemodel (CLM4.5) on carbon fluxes, pools and turnover in temperate forests
Evaluating the effect of alternative carbon allocation schemes in a land surfacemodel (CLM4.5) on carbon fluxes, pools and turnover in temperate forests Open
How carbon (C) is allocated to different plant tissues (leaves, stem and roots) determines C residence time and thus remains a central challenge for understanding the global C cycle. We used a diverse set of observations (AmeriFlux eddy co…
View article: Supplementary material to "Evaluating the effect of alternative carbon allocation schemes in a land surfacemodel (CLM4.5) on carbon fluxes, pools and turnover in temperate forests"
Supplementary material to "Evaluating the effect of alternative carbon allocation schemes in a land surfacemodel (CLM4.5) on carbon fluxes, pools and turnover in temperate forests" Open