M. Mauder

article

Multi‐isotope fingerprints (O, Sr and Pb) in archaeological animal bone bioapatite: Similarity search and the suitability for provenance analysis in a geologically complex Alpine region

L. Tschetsch, A. Mussauer, M. Mauder, J. Lohrer, more

Multi‐isotope fingerprints in the bioapatite of archaeological skeletons are mostly superior over single isotope analyses for provenance studies. Gaussian mixture model (GMM) clustering is a novel tool for a similarity search among multidimensional data sets and at the same time permits the evaluation of the structural importance of particular isotopic ratios in the data set. We applied three GMM...

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Significance and Limitations of Stable Oxygen Isotope Ratios in the Apatite Phosphate of Archaeological Vertebrate Finds for Provenance Analysis in an Alpine Reference Region

M. Mauder, E. Ntoutsi, P. Kröger, C. Mayr, more

Archaeometry > 61 > 1 > 194 - 210

A multi‐isotope fingerprint consisting of δ¹⁸O_phosphate, ⁸⁷Sr/⁸⁶Sr, ²⁰⁸Pb/²⁰⁴Pb, ²⁰⁷Pb/²⁰⁴Pb, ²⁰⁶Pb/²⁰⁴Pb, ²⁰⁸Pb/²⁰⁷Pb and ²⁰⁶Pb/²⁰⁷Pb was established in the bioapatite of 219 individual archaeofaunal remains (cattle, pig, red deer) excavated from sites located along a specific transect of the European Alps, namely the Inn–Eisack–Adige–Brenner Passage, that has been of eminent importance since European...

article

ICOS eddy covariance flux-station site setup: a review

C. Rebmann, M. Aubinet, H. Schmid, N. Arriga, more

International Agrophysics > 2018 > 32 > 4

article

Towards long-term standardised carbon and greenhouse gas observations for monitoring Europe´s terrestrial ecosystems: a review

D. Franz, M. Acosta, N. Altimir, N. Arriga, more

International Agrophysics > 2018 > 32 > 4

article

Eddy covariance raw data processing for CO2 and energy fluxes calculation at ICOS ecosystem stations

S. Sabbatini, I. Mammarella, N. Arriga, G. Fratini, more

International Agrophysics > 2018 > 32 > 4

article

The challenge of reconciling bottom-up agricultural methane emissions inventories with top-down measurements

R.L. Desjardins, D.E. Worth, E. Pattey, A. VanderZaag, more

Agricultural and Forest Meteorology > 2018 > 248 > C > 48-59

Agriculture is estimated to produce more than 40% of anthropogenic methane (CH₄) emissions, contributing to global climate change. Bottom-up, IPCC based methodologies are typically used to estimate the agriculture sector’s contribution, but these estimates are rarely verified beyond the farm gate, due to the challenge of separating interspersed sources. We present flux measurements of CH_4, using eddy...

article

Reduced snow cover affects productivity of upland temperate grasslands

M.J. Zeeman, M. Mauder, R. Steinbrecher, K. Heidbach, more

Agricultural and Forest Meteorology > 2017 > 232 > C > 514-526

The 2013/2014 winter season showed exceptionally sparse snow cover conditions north of the Alps, which allowed an in situ investigation of the response of vegetation to changed environmental conditions. Examination of carbon dioxide fluxes at three grassland sites along an elevation gradient from 595 to 864ma.m.s.l. revealed that elevation, snow cover extent, soil temperature (T_soil) and management...

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Net ecosystem exchange over a non-cleared wind-throw-disturbed upland spruce forest—Measurements and simulations

M. Lindauer, H.P. Schmid, R. Grote, M. Mauder, more

Agricultural and Forest Meteorology > 2014 > 197 > C > 219-234

Net ecosystem exchange (NEE) was measured in a wind-throw-disturbed upland spruce forest in the Bavarian Forest National Park (Germany) continuously over four years from 2009 to 2013 by the eddy-covariance method. Estimated annual NEE (positive values stand for a net carbon source) of the non-cleared wind-throw resulted in 347±104, 255±77, 221±66, 240±52, and 167±50gCm⁻². However, two to six years...

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Multiscale estimates of N2O emissions from agricultural lands

R.L. Desjardins, E. Pattey, W.N. Smith, D. Worth, more

Agricultural and Forest Meteorology > 2010 > 150 > 6 > 817-824

Nitrous oxide (N ₂ O) emissions are a large proportion of the agriculture sector's contribution to the greenhouse gas inventory of most developed countries. The spatial and temporal variability of N ₂ O emissions from agricultural soils has long been considered the main factor limiting our ability to estimate N ₂ O emissions, particularly the emissions associated with the spring...

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Measurement of the Sensible Eddy Heat Flux Based on Spatial Averaging of Continuous Ground-Based Observations

M. Mauder, R. L. Desjardins, E. Pattey, Z. Gao, more

Boundary-Layer Meteorology > 2008 > 128 > 1 > 151-172

Using the standard eddy-covariance (EC) method to quantify mass and energy exchange at a single location usually results in an underestimation of vertical eddy fluxes at the surface. In order to better understand the reasons for this underestimation, an experimental set-up is presented that is based on spatial averaging of air temperature data from a network of ground-based sensors over agricultural...

article

Surface energy balance measurements at a tropical site in West Africa during the transition from dry to wet season

M. Mauder, O. O. Jegede, E. C. Okogbue, F. Wimmer, more

Theoretical and Applied Climatology > 2007 > 89 > 3-4 > 171-183

Summary In one of the first micrometeorological experiments at a tropical site in West Africa, direct measurements of all surface energy balance components were carried out. The experiment NIMEX-1 in Ile-Ife, Nigeria (7°33′ N, 4°33′ E), was conducted from February 19, 2004 to March 9, 2004, during the transition from the dry to the wet season. Three typical weather situations could be observed: firstly,...

article

Innovative gap-filling strategy for annual sums of CO2 net ecosystem exchange

J. Ruppert, M. Mauder, C. Thomas, J. Lüers

Agricultural and Forest Meteorology > 2006 > 138 > 1-4 > 5-18

The determination of carbon dioxide net ecosystem exchange (NEE) using the eddy-covariance (EC) method has become a fundamental tool for the investigation of the carbon balance of terrestrial ecosystems. This study presents a strategy for the processing, subsequent quality control and gap-filling of carbon dioxide eddy-covariance flux measurements for the derivation of annual sums of NEE. A set of...

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Search results for: M. Mauder

Multi‐isotope fingerprints (O, Sr and Pb) in archaeological animal bone bioapatite: Similarity search and the suitability for provenance analysis in a geologically complex Alpine region

Significance and Limitations of Stable Oxygen Isotope Ratios in the Apatite Phosphate of Archaeological Vertebrate Finds for Provenance Analysis in an Alpine Reference Region

ICOS eddy covariance flux-station site setup: a review

Towards long-term standardised carbon and greenhouse gas observations for monitoring Europe´s terrestrial ecosystems: a review

Eddy covariance raw data processing for CO2 and energy fluxes calculation at ICOS ecosystem stations

The challenge of reconciling bottom-up agricultural methane emissions inventories with top-down measurements

Reduced snow cover affects productivity of upland temperate grasslands

Net ecosystem exchange over a non-cleared wind-throw-disturbed upland spruce forest—Measurements and simulations

Multiscale estimates of N2O emissions from agricultural lands

Measurement of the Sensible Eddy Heat Flux Based on Spatial Averaging of Continuous Ground-Based Observations

Surface energy balance measurements at a tropical site in West Africa during the transition from dry to wet season

Innovative gap-filling strategy for annual sums of CO2 net ecosystem exchange

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