Martín Grosjean
Dados Biográficos
| ID | 673652 |
|---|---|
| NOME | Martín Grosjean |
| PRENOMES | Martín |
| SOBRENOME | Grosjean |
| ASSINATURA | GROSJEAN M |
| AFILIAÇÕES | University of Bern |
| ORCID | 0000-0002-3553-8842 |
| VERIFICADO | Sim |
| TOTAL DE OBRAS | 47 |
| TOTAL DE CITAÇÕES | 127 |
| TOTAL COMO AUTOR | 47 |
| TOTAL COMO EDITOR | 0 |
| PRIMEIRO ANO DE PUBLICAÇÃO | 1988 |
| ANO MAIS RECENTE DE PUBLICAÇÃO | 2025 |
| ÍNDICE H | 7 |
Changes in climate drove vegetation and land use dynamics at the onset of farming in Europe
Here we present the first high-resolution continuous palaeoecological study from Greece covering the Mesolithic–Neolithic transition at Limni Zazari, a small lake in western Macedonia. We study how interactions between vegetation and climate might have affected the introduction of agriculture to Europe ca. 8500 years ago. We found that mixed deciduous oak woodlands established around the lake once moisture availability began to increase at ~10,30…
Late Holocene deforestation and reforestation controls lake mixing regimes and aquatic ecology
Lakes are highly sensitive to environmental changes, making them valuable archives for reconstructing past responses to human disturbances and ecosystem dynamics. While the effects of climate warming on lake oxygenation and primary production are well documented, the impacts of long-term land-use changes - particularly deforestation - on lake mixing and biogeochemical cycling remain poorly understood. This study investigates the response of Lake …
Holocene climate–vegetation–land use interactions in the mesomediterranean coastlands of northern Greece
Mesomediterranean vegetation with abundant evergreen broadleaved trees and shrubs is dominant along the coast of northern Greece. Well-dated palynological records are available from the inland submediterranean zone, where evergreen broadleaved trees and shrubs are absent or rare, but less is known about the vegetation history of the coastal area. For instance, it is unclear when and why evergreen broadleaved vegetation expanded during the Holocen…
Fine-Tuning of Sub-Annual Resolution Spectral Index Time Series from Eifel Maar Sediments, Western Germany, to the NGRIP δ18O Chronology, 26–60 ka
Recent technological advancements in spectral imaging core-scanning techniques have proved to be a promising tool to study lake sediments at extremely high resolution. We used this novel analytical approach to scan core AU3 of the Pleistocene Auel maar, Western Germany. The resulting ultra-high-resolution RABD670 spectral index, a proxy for the lake’s primary production, shows an almost complete succession of Greenland Interstadials of the NGRIP …
Ecological responses to solar forcing during the Homerian Climate Anomaly recorded by varved sediments from Holzmaar, Germany
Features like solar cyclicities and trends as well as grand solar minima are used to attribute natural climate variability to solar forcing on decadal to millennial time scales. Here we focus on ecological responses of a Grand Solar Minimum on annually- laminated lake sediments from Holzmaar (Germany) covering the Homeric Climate Anomaly (HCA). Diatom assemblages and pigments of purple sulphur bacteria (Bphe a) analysed at decadal resolution docu…
A novel, continuous high-resolution palaeoecological record from central Italy suggests comparable land-use dynamics in Southern and Central Europe during the Neolithic
Although rare, temporally and taxonomically highly-resolved palaeoecological studies with high chronological precision are essential to perform detailed comparisons with precisely dated independent evidence such as archaeological findings, historical events, or palaeoclimatic data. Using a new highly-resolved and chronologically precise sedimentary record from Lago di Mezzano (central Italy), we reconstruct decadal-scale vegetation, species diver…
Th century climate warming and human disturbance triggered high aquatic production and strong water-column mixing in maar Lake Xiaolongwan, northeastern China
Years of climate, vegetation, fire and land-use dynamics in the thermo-mediterranean vegetation belt of northern Sardinia (Italy)
Knowledge about the vegetation history of Sardinia, the second largest island of the Mediterranean, is scanty. Here, we present a new sedimentary record covering the past ~ 8,000 years from Lago di Baratz, north-west Sardinia. Vegetation and fire history are reconstructed by pollen, spores, macrofossils and charcoal analyses and environmental dynamics by high-resolution element geochemistry together with pigment analyses. During the period 8,100-…
Years of interactions between climate, vegetation and land use in Northern Greece
Resilience, rapid transitions and regime shifts
Rapid ecosystem transitions and adverse effects on ecosystem services as responses to combined climate and human impacts are of major concern. Yet few long-term (i.e. >60 years) quantitative observational time series exist, particularly for ecosystems that have a long history of human intervention. Here, we combine three major environmental pressures (land use, nutrients and erosion) with quantitative summer and winter climate reconstructions and…
Determining the responses of vegetation to natural processes and human impacts in north-eastern Poland during the last millennium
Pollen, charcoal and geochemical investigations were carried out on annually laminated sediments of Lake
A 600 years warm-season temperature record from varved sediments of Lago Plomo, Northern Patagonia, Chile (47°S)
Climate change in Switzerland
Climate change is clearly discernible in observed climate records in Switzerland. It impacts on natural systems, ecosystems, and economic sectors such as agriculture, tourism, and energy, and it affects Swiss livelihood in various ways. The observed and projected changes call for a response from the political system, which in Switzerland is characterized by federalism and direct democratic instruments. Swiss climate science embraces natural and s…
Continental-scale temperature variability during the past two millennia
Archaeological silence and ecorefuges
A 950 yr temperature reconstruction from Duckhole Lake, southern Tasmania, Australia
A lack of quantitative high resolution paleoclimate data from the Southern Hemisphere limits the ability to examine current trends within the context of long-term natural climate variability. This study presents a temperature reconstruction for southern Tasmania based on analyses of a sediment core from Duckhole Lake (43.365°S, 146.875°E). The relationship between non-destructive whole core scanning reflectance spectroscopy measurements in the vi…
Holocene climate, fire and vegetation dynamics at the treeline in the Northwestern Swiss Alps
Structure and origin of Holocene cold events
Quantitative high-resolution winter (JJA) precipitation reconstruction from varved sediments of Lago Plomo 47°S, Patagonian Andes, ad 1530–2002
High-resolution climate reconstructions from a range of natural archives across the world are fundamental to place current climate change into perspective. Paleoclimate records for the Southern Hemisphere are scarce and only a few quantitative high-resolution reconstructions exist for the past millennium. We present a record of annually laminated sediments of Lago Plomo (46°59′S, 72°52′W,203 m a.s.l.) located east of the Northern Patagonian Ice F…
Sequential Analysis of Human Occupation Patterns and Resource Use in the Atacama Desert
This paper presents a chronological sequence of human occupation from the end of the Pleistocene to the present day in the Atacama Desert, one of the most barren territories of the New World.The occupational sequence covers a period of 11,000 years of prehistory, in which distinct patterns of resource use are examined such as hunting, fishing and gathering techniques, animal domestication, agriculture, animal husbandry, mining, commerce and trade…
A quantitative high-resolution summer temperature reconstruction based on sedimentary pigments from Laguna Aculeo, central Chile, back to AD 850
We present a pigment-based quantitative high-resolution (five years) austral summer DJF (December to February) temperature reconstruction for Central Chile back to AD 850. We used non-destructive in situ multichannel reflection spectrometry data from a short sediment core of Laguna Aculeo (33°50′S/70°54′W, 355 m a.s.l., central Chile). Calibration-in-time (period AD 1901—2000, cross-validated with split periods) revealed robust correlations betwe…
High-resolution chironomid-inferred temperature history since ad 1580 from varved Lake Silvaplana, Switzerland
Chironomids were used to reconstruct mean July air temperatures between c. AD 1580 and 2001 at Lake Silvaplana, a varved lake located in the Engadine, eastern Swiss Alps. The goal of this study was to reconstruct temperature changes at near-annual resolution, and validate the reconstruction by comparison with records based on early instrumental data, documentary proxy evidence, dendrochronology, geochemical (biogenic silica (BSi)) and mineralogic…
Mid- to Late Holocene climate change
Decadal-scale autumn temperature reconstruction back to AD 1580 inferred from the varved sediments of Lake Silvaplana (Southeastern Swiss Alps)
A quantitative high-resolution autumn (September–November) temperature reconstruction for the southeastern Swiss Alps back to AD 1580 is presented here. We used the annually resolved biogenic silica (diatoms) flux derived from the accurately dated and annually sampled sediments of Lake Silvaplana (46°27′N, 9°48′E, 1800 m a.s.l.). The biogenic silica flux smoothed by means of a 9-yr running mean was calibrated ( r =0.70, p
How stable are twentieth-century calibration models? A high-resolution summer temperature reconstruction for the eastern Swiss Alps back to AD 1580 derived from proglacial varved sediments
We found a significant positive correlation between local summer air temperature (May-September) and the annual sediment mass accumulation rate (MAR) in Lake Silvaplana (46°N, 9°E, 1800 m a.s.l.) during the twentieth century (r = 0.69, p < 0.001 for decadal smoothed series). Sediment trap data (2001-2005) confirm this relation with exceptionally high particle yields during the hottest summer of the last 140 years in 2003. On this base we develope…
Emergencia de comunidades pastoralistas formativas en el sureste de la Puna de Atacama
Se sintetizan los resultados de una investigación multidisciplinaria orientada a comprender la transición entre sociedades arcaicas tardías (ca. 5000-3800 AP) y formativas tempranas (ca. 3500-2400 AP). Se propone que la ubicación de los asentamientos arcaicos y formativos en el ecorrefugio de quebrada de Tulan, se explica por un conjunto de condiciones culturales, sociales y ambientales favorables, las cuales permitieron el cambio desde una socie…
Holocene climate, fire and vegetation dynamics at the treeline in the Northwestern Swiss Alps
Sequential Analysis of Human Occupation Patterns and Resource Use in the Atacama Desert
This paper presents a chronological sequence of human occupation from the end of the Pleistocene to the present day in the Atacama Desert, one of the most barren territories of the New World.The occupational sequence covers a period of 11,000 years of prehistory, in which distinct patterns of resource use are examined such as hunting, fishing and gathering techniques, animal domestication, agriculture, animal husbandry, mining, commerce and trade…
Years of interactions between climate, vegetation and land use in Northern Greece
Lateglacial, early and middle holocene environments, human occupation, and resource use in the Atacama (Northern Chile)
Paleoenvironmental data from the Atacama Altiplano (21°–24°S) indicate that water, vegetation and animal resources were more abundant during lateglacial and early Holocene times than today. The rate of precipitation increased above 4000 m elevation to 400–500 mm/yr compared to the present 200 mm/yr. Dry conditions prevailed below 3500 m. Evidence of Paleoindian habitation is still missing, even though there is no evidence for environmental prohib…
Determining the responses of vegetation to natural processes and human impacts in north-eastern Poland during the last millennium
Pollen, charcoal and geochemical investigations were carried out on annually laminated sediments of Lake
Un ecorefugio oportunístico en la puna de Atacama durante eventos áridos del Holoceno Medio
Se demuestra que los eventos áridos del Holoceno Medio y los cambios paleoambientales fueron sincrónicos con transformaciones culturales y tecnológicas tales como la diversificacion de la industria lítica, emergencia de arquitectura compleja, cambio en el uso de rocas, actividades semipermanentes y coexistencia de domesticación de camélidos con prácticas de caza-recolección (4.050-4.800 A.P). Se identifica el desarrollo de agricultura, pastoralis…
Years of climate, vegetation, fire and land-use dynamics in the thermo-mediterranean vegetation belt of northern Sardinia (Italy)
Knowledge about the vegetation history of Sardinia, the second largest island of the Mediterranean, is scanty. Here, we present a new sedimentary record covering the past ~ 8,000 years from Lago di Baratz, north-west Sardinia. Vegetation and fire history are reconstructed by pollen, spores, macrofossils and charcoal analyses and environmental dynamics by high-resolution element geochemistry together with pigment analyses. During the period 8,100-…
Mid- and late-Holocene limnogeology of Laguna del Negro Francisco, northern Chile, and its palaeoclimatic implications
Lacustrine sediments from the high elevation, endorheic, saline lake Negro Francisco (27°28'S/69°14'W, 4125 m) provide a detailed mid- and late-Holocene environmental history of the Southern Chilean Altiplano. Mineralogy, chemical composition and sedimentary facies analyses of the deposits confirm the regional significance of mid-Holocene aridity between 6000 and 3800 BP. Precipitation rates were signifi cantly lower than the c. 250 mm yr -1 of t…
A quantitative high-resolution summer temperature reconstruction based on sedimentary pigments from Laguna Aculeo, central Chile, back to AD 850
We present a pigment-based quantitative high-resolution (five years) austral summer DJF (December to February) temperature reconstruction for Central Chile back to AD 850. We used non-destructive in situ multichannel reflection spectrometry data from a short sediment core of Laguna Aculeo (33°50′S/70°54′W, 355 m a.s.l., central Chile). Calibration-in-time (period AD 1901—2000, cross-validated with split periods) revealed robust correlations betwe…
Quantitative high-resolution winter (JJA) precipitation reconstruction from varved sediments of Lago Plomo 47°S, Patagonian Andes, ad 1530–2002
High-resolution climate reconstructions from a range of natural archives across the world are fundamental to place current climate change into perspective. Paleoclimate records for the Southern Hemisphere are scarce and only a few quantitative high-resolution reconstructions exist for the past millennium. We present a record of annually laminated sediments of Lago Plomo (46°59′S, 72°52′W,203 m a.s.l.) located east of the Northern Patagonian Ice F…
A 950 yr temperature reconstruction from Duckhole Lake, southern Tasmania, Australia
A lack of quantitative high resolution paleoclimate data from the Southern Hemisphere limits the ability to examine current trends within the context of long-term natural climate variability. This study presents a temperature reconstruction for southern Tasmania based on analyses of a sediment core from Duckhole Lake (43.365°S, 146.875°E). The relationship between non-destructive whole core scanning reflectance spectroscopy measurements in the vi…
High-resolution chironomid-inferred temperature history since ad 1580 from varved Lake Silvaplana, Switzerland
Chironomids were used to reconstruct mean July air temperatures between c. AD 1580 and 2001 at Lake Silvaplana, a varved lake located in the Engadine, eastern Swiss Alps. The goal of this study was to reconstruct temperature changes at near-annual resolution, and validate the reconstruction by comparison with records based on early instrumental data, documentary proxy evidence, dendrochronology, geochemical (biogenic silica (BSi)) and mineralogic…
How stable are twentieth-century calibration models? A high-resolution summer temperature reconstruction for the eastern Swiss Alps back to AD 1580 derived from proglacial varved sediments
We found a significant positive correlation between local summer air temperature (May-September) and the annual sediment mass accumulation rate (MAR) in Lake Silvaplana (46°N, 9°E, 1800 m a.s.l.) during the twentieth century (r = 0.69, p < 0.001 for decadal smoothed series). Sediment trap data (2001-2005) confirm this relation with exceptionally high particle yields during the hottest summer of the last 140 years in 2003. On this base we develope…
African Mountains and Highlands
Martin Grosjean, Bruno Messerli, African Mountains and Highlands: Potential and Constraints, Mountain Research and Development, Vol. 8, No. 2/3, African Mountains and Highlands (May - Aug., 1988), pp. 111-122
Climate Change and Natural Resource Dynamics of the Atacama Altiplano during the Last 18,000 Years
Lateglacial, early and middle holocene environments, human occupation, and resource use in the Atacama (Northern Chile)
Paleoenvironmental data from the Atacama Altiplano (21°–24°S) indicate that water, vegetation and animal resources were more abundant during lateglacial and early Holocene times than today. The rate of precipitation increased above 4000 m elevation to 400–500 mm/yr compared to the present 200 mm/yr. Dry conditions prevailed below 3500 m. Evidence of Paleoindian habitation is still missing, even though there is no evidence for environmental prohib…
Cambios ambientales pleistoceno-holocénicos
Los datos paleoambientales indican que los recursos de agua, vegetación y fauna de la Puna de Atacama (>4000 m.snm), fueron abundantes durante la última edad glacial y Holoceno Temprano, mientras que las condiciones de aridez prevalecieron bajo los 3500 m. Los cazadores del Período Arcaico Temprano (ca. 10800 a 8500 AP) estaban adaptados a la alta Puna y su piedemonte, a lo largo del desagüe de los ríos provenientes de las tierras altas, en donde…
Holocene environmental changes in the Atacama Altiplano and paleoclimatic implications
Strengthened summer monsoon brought tropical/continental moisture as far south as 25oS during late-glacial and early Holocene times. Precipitation rates in the Altiplano of the western Andes (24oS) increased to 500 mm yr-1 compared to <200 mm yr-1 today. There is evidence of dramatically decreasing lake levels between 8 400 and about 3 000 yr B.P., and conditions drier than today were established. This arid period was interrupted by low-frequency…
Studien zur Morphodynamik in den Hohenstuffen der Apolobamba-Kordillere (Bolivien). Eine Kartenaufnahme nach dem Methodenansatz der Geomorphologischen Kartierung (GMK 100)
Mid-Holocene Climate and Culture Change in the Atacama Desert, Northern Chile
Twenty archaeological campsites intercalated between more than 30 debris flows caused by heavy rainfall events between 6200 and 3100 14 C yr B.P. have recently been discovered at Quebrada Puripica in the Atacama Desert of northern Chile. This record provides detailed information about extreme, short-lived climatic events during the hyperarid mid-Holocene period. For the first time, we found evidence of continuous human occupation in this area, fi…
Water Availability, Protected Areas, and Natural Resources in the Andean Desert Altiplano
Bruno Messerli, Martin Grosjean, Mathias Vuille, Water Availability, Protected Areas, and Natural Resources in the Andean Desert Altiplano, Mountain Research and Development, Vol. 17, No. 3, The United Nations University. Managing Fragile Ecosystems in the Andes (Aug., 1997), pp. 229-238
Mid- and late-Holocene limnogeology of Laguna del Negro Francisco, northern Chile, and its palaeoclimatic implications
Lacustrine sediments from the high elevation, endorheic, saline lake Negro Francisco (27°28'S/69°14'W, 4125 m) provide a detailed mid- and late-Holocene environmental history of the Southern Chilean Altiplano. Mineralogy, chemical composition and sedimentary facies analyses of the deposits confirm the regional significance of mid-Holocene aridity between 6000 and 3800 BP. Precipitation rates were signifi cantly lower than the c. 250 mm yr -1 of t…
Cambios ambientales holocénicos en la Puna de Atacama y sus implicancias paleoclimáticas
Estudios multidisciplinarios han permitido reconstruir los cambios extremos en el balance hídrico experimentados en la Puna de Atacama durante el Holoceno. La intensificación del monzón de verano (invierno boliviano) aumentó la precipitación de origen continental en la región hasta los 25o S durante el Tardiglacial/Holoceno Temprano. La precipitación en la región de los Andes occidentales (24o S) se incrementó hasta 500 mm por año en comparación …
A late-Holocene (<2600 BP) glacial advance in the south-central Andes (29°S), northern Chile
Radiocarbon dates and relative ages of soils on moraines provide evidence of a substantial late-Holocene (<2600 BP) readvance of glaciers in the western part of the arid Andes at 29°S. The glacier in the Encierro valley, northern Chile, reached about 60% of its late-Pleistocene extent. The equilibrium line altitude ELA during this advance remained between 4250 and 4500 m which is above the modern 0°C isotherm of the free atmosphere during summer.…
Radiocarbon Reservoir Effect and the Timing of the Late-Glacial/Early Holocene Humid Phase in the Atacama Desert (Northern Chile)
We revise substantially the regional chronology of lake-level fluctuations from the late-glacial/early Holocene humid phase along a high altitude transect (3500 to 4500 m) between 18°S and 28°S in the Southwestern Altiplano of Northern Chile. Radiocarbon dates and 210 Pb profiles for limnic and terrestrial materials allow us to estimate and justify reservoir correction values for conventional 14 C dates. Our chronology suggests that the latest Pl…
Un ecorefugio oportunístico en la puna de Atacama durante eventos áridos del Holoceno Medio
Se demuestra que los eventos áridos del Holoceno Medio y los cambios paleoambientales fueron sincrónicos con transformaciones culturales y tecnológicas tales como la diversificacion de la industria lítica, emergencia de arquitectura compleja, cambio en el uso de rocas, actividades semipermanentes y coexistencia de domesticación de camélidos con prácticas de caza-recolección (4.050-4.800 A.P). Se identifica el desarrollo de agricultura, pastoralis…
Human Dimensions of Late Pleistocene/Holocene Arid Events in Southern South America
Climate Change at High Elevation Sites
Human Occupations and Climate Change in the Puna de Atacama, Chile
Widespread evidence for human occupation of the Atacama Desert, 20° to 25°S in northern Chile, has been found from 13,000 calibrated 14 C years before the present (cal yr B.P.) to 9500 cal yr B.P., and again after 4500 cal yr B.P. Initial human occupation coincided with a change from very dry environments to humid environments. More than 39 open early Archaic campsites at elevations above 3600 meters show that hunters lived around late glacial/ea…
Evidence of an LGM cooling in NW-Argentina (22°S) derived from a glacier climate model
European Seasonal and Annual Temperature Variability, Trends, and Extremes Since 1500
Multiproxy reconstructions of monthly and seasonal surface temperature fields for Europe back to 1500 show that the late 20th- and early 21st-century European climate is very likely (>95% confidence level) warmer than that of any time during the past 500 years. This agrees with findings for the entire Northern Hemisphere. European winter average temperatures during the period 1500 to 1900 were reduced by ∼0.5°C (0.25°C for annual mean temperature…
Palaeoindian occupation of the Atacama Desert, northern Chile
Palaeoindian occupation of the Atacama Desert in northern Chile has been found between 12 600 and 10 200 cal. yr BP. The new site at Salar Punta Negra (24°28′S/60°53′W/2976 m) includes about 1000 classifiable, mostly unifacial artefacts and, uniquely, three different diagnostic types of early projectile points. Two of the Lateglacial/early Holocene projectile types have wide distribution and are known from different geographical areas in South Am…
Temperature reduction and local last glaciation maximum (LLGM)
This study presents results from a glacier-climate model that reconstructed glacio-climatological conditions during the last local glaciation maximum (LLGM) in the Cordillera to the north of Cochabamba (17°15'S, 66°15'W), Bolivia. Results emphasize the temperature-sensitivity of glaciers on the eastern slope of the Cordillera Oriental. Maximum glacier advances appear to have been caused by a massive cooling of about 6.5°C while annual preeipitati…
Climate and human impact during the past 2000 years as recorded in the Lagunas de Yala, Jujuy, northwestern Argentina
Emergencia de comunidades pastoralistas formativas en el sureste de la Puna de Atacama
Se sintetizan los resultados de una investigación multidisciplinaria orientada a comprender la transición entre sociedades arcaicas tardías (ca. 5000-3800 AP) y formativas tempranas (ca. 3500-2400 AP). Se propone que la ubicación de los asentamientos arcaicos y formativos en el ecorrefugio de quebrada de Tulan, se explica por un conjunto de condiciones culturales, sociales y ambientales favorables, las cuales permitieron el cambio desde una socie…
Decadal-scale autumn temperature reconstruction back to AD 1580 inferred from the varved sediments of Lake Silvaplana (Southeastern Swiss Alps)
A quantitative high-resolution autumn (September–November) temperature reconstruction for the southeastern Swiss Alps back to AD 1580 is presented here. We used the annually resolved biogenic silica (diatoms) flux derived from the accurately dated and annually sampled sediments of Lake Silvaplana (46°27′N, 9°48′E, 1800 m a.s.l.). The biogenic silica flux smoothed by means of a 9-yr running mean was calibrated ( r =0.70, p
How stable are twentieth-century calibration models? A high-resolution summer temperature reconstruction for the eastern Swiss Alps back to AD 1580 derived from proglacial varved sediments
We found a significant positive correlation between local summer air temperature (May-September) and the annual sediment mass accumulation rate (MAR) in Lake Silvaplana (46°N, 9°E, 1800 m a.s.l.) during the twentieth century (r = 0.69, p < 0.001 for decadal smoothed series). Sediment trap data (2001-2005) confirm this relation with exceptionally high particle yields during the hottest summer of the last 140 years in 2003. On this base we develope…
Mid- to Late Holocene climate change
Geography (44 obras) · Geology and Paleoclimatology Research (37 obras) · Physical geography (36 obras) · Climate change (30 obras) · Geology (24 obras) · Archaeology (22 obras) · Climatology (22 obras) · Holocene (21 obras) · Tree-ring climate responses (19 obras) · Oceanography (18 obras)