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Literatura académica sobre el tema "Past interglacials"

Autor: Grafiati

Publicado: 10 de marzo de 2023

Última modificación: 11 de marzo de 2023

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Artículos de revistas sobre el tema "Past interglacials"

Cluett, Allison A. y Elizabeth K. Thomas. "Summer warmth of the past six interglacials on Greenland". Proceedings of the National Academy of Sciences 118, n.º 20 (10 de mayo de 2021): e2022916118. http://dx.doi.org/10.1073/pnas.2022916118.

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The relative warmth of mid-to-late Pleistocene interglacials on Greenland has remained unknown, leading to debates about the regional climate forcing that caused past retreat of the Greenland Ice Sheet (GrIS). We analyze the hydrogen isotopic composition of terrestrial biomarkers in Labrador Sea sediments through interglacials of the past 600,000 y to infer millennial-scale summer warmth on southern Greenland. Here, we reconstruct exceptionally warm summers in Marine Isotope Stage (MIS) 5e, concurrent with strong Northern Hemisphere summer insolation. In contrast, “superinterglacial” MIS11 demonstrated only moderate warmth, sustained throughout a prolonged interval of elevated atmospheric carbon dioxide. Strong inferred GrIS retreat during MIS11 relative to MIS5e suggests an indirect relationship between maximum summer temperature and cumulative interglacial mass loss, indicating strong GrIS sensitivity to duration of regional warmth and elevated atmospheric carbon dioxide.

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Bridgland, David. "The Climate of Past Interglacials". Quaternary Science Reviews 29, n.º 15-16 (julio de 2010): 1952–53. http://dx.doi.org/10.1016/j.quascirev.2010.04.008.

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Coletti, A. J., R. M. DeConto, J. Brigham-Grette y M. Melles. "A GCM comparison of Pleistocene super-interglacial periods in relation to Lake El'gygytgyn, NE Arctic Russia". Climate of the Past 11, n.º 7 (10 de julio de 2015): 979–89. http://dx.doi.org/10.5194/cp-11-979-2015.

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Abstract. Until now, the lack of time-continuous, terrestrial paleoenvironmental data from the Pleistocene Arctic has made model simulations of past interglacials difficult to assess. Here, we compare climate simulations of four warm interglacials at Marine Isotope Stages (MISs) 1 (9 ka), 5e (127 ka), 11c (409 ka) and 31 (1072 ka) with new proxy climate data recovered from Lake El'gygytgyn, NE Russia. Climate reconstructions of the mean temperature of the warmest month (MTWM) indicate conditions up to 0.4, 2.1, 0.5 and 3.1 °C warmer than today during MIS 1, 5e, 11c and 31, respectively. While the climate model captures much of the observed warming during each interglacial, largely in response to boreal summer (JJA) orbital forcing, the extraordinary warmth of MIS 11c compared to the other interglacials in the Lake El'gygytgyn temperature proxy reconstructions remains difficult to explain. To deconvolve the contribution of multiple influences on interglacial warming at Lake El'gygytgyn, we isolated the influence of vegetation, sea ice and circum-Arctic land ice feedbacks on the modeled climate of the Beringian interior. Simulations accounting for climate–vegetation–land-surface feedbacks during all four interglacials show expanding boreal forest cover with increasing summer insolation intensity. A deglaciated Greenland is shown to have a minimal effect on northeast Asian temperature during the warmth of stages 11c and 31 (Melles et al., 2012). A prescribed enhancement of oceanic heat transport into the Arctic Ocean does have some effect on Lake El'gygytgyn's regional climate, but the exceptional warmth of MIS l1c remains enigmatic compared to the modest orbital and greenhouse gas forcing during that interglacial.

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Schreve, Danielle. "All is flux: the predictive power of fluctuating Quaternary mammalian faunal-climate scenarios". Philosophical Transactions of the Royal Society B: Biological Sciences 374, n.º 1788 (4 de noviembre de 2019): 20190213. http://dx.doi.org/10.1098/rstb.2019.0213.

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The long-term impact of Middle and Late Pleistocene glacial-interglacial change led to the major reorganization of mammalian faunal communities in northern Europe through species origination, extinction, evolutionary change and distributional shifts. A Bray–Curtis cluster analysis with single linkage to examine relative faunal similarity was performed on mammalian assemblages from five successively older interglacials (MIS 1, 5e, 7c-a, 9 and 11) in Britain, a region with an exceptionally well-resolved faunal record for this time period. The results indicate a degree of continuity in terms of common interglacial elements occurring across all periods but also reveal that the particular climatic and environmental parameters of each interglacial resulted in the generation of very different faunal assemblages, depending on the length, intensity and structure of the interglacial. Of particular note are the comparability of the mammalian assemblages from warm interglacials MIS 5e and 9, and the high species diversity seen in MIS 7c-a, linked to relatively cool temperate conditions and the spread of dry grasslands. Together, these results offer insight into the overall ‘predictability' of Quaternary mammalian interglacial community composition and what might be expected in the natural evolution of a Holocene interglacial freed of anthropogenic interference. This article is part of a discussion meeting issue ‘The past is a foreign country: how much can the fossil record actually inform conservation?’

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McManus, Jerry, D. Raynaud y PC Tzedakis. "The 3rd PAGES Past Interglacials workshop". PAGES news 19, n.º 2 (julio de 2011): 80–81. http://dx.doi.org/10.22498/pages.19.2.80.

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Tzedakis, Polychronis C., JF McManus, D. Raynaud, DA Hodell, LC Skinner y EW Wolff. "The 4th PAGES past interglacials workshop". PAGES news 21, n.º 1 (marzo de 2013): 42. http://dx.doi.org/10.22498/pages.21.1.42.

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Jiang, Zhiyi, Chris Brierley, David Thornalley y Sophie Sax. "No changes in overall AMOC strength in interglacial PMIP4 time slices". Climate of the Past 19, n.º 1 (12 de enero de 2023): 107–21. http://dx.doi.org/10.5194/cp-19-107-2023.

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Abstract. The Atlantic Meridional Overturning Circulation (AMOC) is a key mechanism of poleward heat transport and an important part of the global climate system. How it responded to past changes in forcing, such as those experienced during Quaternary interglacials, is an intriguing and open question. Previous modelling studies suggest an enhanced AMOC in the mid-Holocene compared to the preindustrial period. In earlier simulations from the Palaeoclimate Modelling Intercomparison Project (PMIP), this arose from feedbacks between sea ice and AMOC changes, which were dependent on resolution. Here we present an initial analysis of recently available PMIP4 simulations for three experiments representing different interglacial conditions – one 127 000 years ago within the Last Interglacial (127 ka, called lig127k), one in the middle of the Holocene (midHolocene, 6 ka), and a preindustrial control simulation (piControl, 1850 CE). Both lig127k and midHolocene have altered orbital configurations compared to piControl. The ensemble mean of the PMIP4 models shows the strength of the AMOC does not markedly change between the midHolocene and piControl experiments or between the lig127k and piControl experiments. Therefore, it appears orbital forcing itself does not alter the overall AMOC. We further investigate the coherency of the forced response in AMOC across the two interglacials, along with the strength of the signal, using eight PMIP4 models which performed both interglacial experiments. Only two models show a stronger change with the stronger forcing, but those models disagree on the direction of the change. We propose that the strong signals in these two models are caused by a combination of forcing and the internal variability. After investigating the AMOC changes in the interglacials, we further explored the impact of AMOC on the climate system, especially on the changes in the simulated surface temperature and precipitation. After identifying the AMOC's fingerprint on the surface temperature and rainfall, we demonstrate that only a small percentage of the simulated surface climate changes could be attributed to the AMOC. Proxy records of sedimentary Pa/Th ratio during the two interglacial periods both show a similar AMOC strength compared to the preindustrial, which fits nicely with the simulated results. Although the overall AMOC strength shows minimal changes, future work is required to explore whether this occurs through compensating variations in the different components of AMOC (such as Iceland–Scotland overflow water). This line of evidence cautions against interpreting reconstructions of past interglacial climate as being driven by AMOC, outside of abrupt events.

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Galaasen, Eirik Vinje, Ulysses S. Ninnemann, Augustin Kessler, Nil Irvalı, Yair Rosenthal, Jerry Tjiputra, Nathaëlle Bouttes, Didier M. Roche, Helga (Kikki) F. Kleiven y David A. Hodell. "Interglacial instability of North Atlantic Deep Water ventilation". Science 367, n.º 6485 (26 de marzo de 2020): 1485–89. http://dx.doi.org/10.1126/science.aay6381.

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Disrupting North Atlantic Deep Water (NADW) ventilation is a key concern in climate projections. We use (sub)centennially resolved bottom water δ13C records that span the interglacials of the last 0.5 million years to assess the frequency of and the climatic backgrounds capable of triggering large NADW reductions. Episodes of reduced NADW in the deep Atlantic, similar in magnitude to glacial events, have been relatively common and occasionally long-lasting features of interglacials. NADW reductions were triggered across the range of recent interglacial climate backgrounds, which demonstrates that catastrophic freshwater outburst floods were not a prerequisite for large perturbations. Our results argue that large NADW disruptions are more easily achieved than previously appreciated and that they occurred in past climate conditions similar to those we may soon face.

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Tzedakis, Chronis, D. Raynaud y JF McManus. "The 2nd PAGES past interglacials (PIGS) workshop". PAGES news 18, n.º 1 (abril de 2010): 38–39. http://dx.doi.org/10.22498/pages.18.1.38.

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Coletti, A. J., R. M. DeConto, J. Brigham-Grette y M. Melles. "A GCM comparison of Plio–Pleistocene interglacial–glacial periods in relation to Lake El'gygytgyn, NE Arctic Russia". Climate of the Past Discussions 10, n.º 4 (7 de agosto de 2014): 3127–61. http://dx.doi.org/10.5194/cpd-10-3127-2014.

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Abstract. Until now, the lack of time-continuous, terrestrial paleoenvironmental data from the Pleistocene Arctic has made model simulations of past interglacials difficult to assess. Here, we compare climate simulations of four warm interglacials at Marine Isotope Stage (MIS) 1 (9 ka), 5e (127 ka), 11c (409 ka), and 31 (1072 ka) with new proxy climate data recovered from Lake El'gygytgyn, NE Russia. Climate reconstructions of the Mean Temperature of the Warmest Month (MTWM) indicate conditions 2.1, 0.5 and 3.1 °C warmer than today during MIS 5e, 11c, and 31, respectively. While the climate model captures much of the observed warming during each interglacial, largely in response to boreal summer orbital forcing, the extraordinary warmth of MIS 11c relative to the other interglacials in the proxy records remain difficult to explain. To deconvolve the contribution of multiple influences on interglacial warming at Lake El'gygytgyn, we isolated the influence of vegetation, sea ice, and circum-Arctic land ice feedbacks on the climate of the Beringian interior. Simulations accounting for climate-vegetation-land surface feedbacks during all four interglacials show expanding boreal forest cover with increasing summer insolation intensity. A deglaciated Greenland is shown to have a minimal effect on Northeast Asian temperature during the warmth of stage 11c and 31 (Melles et al., 2012). A prescribed enhancement of oceanic heat transport into the Arctic ocean has some effect on Beringian climate, suggesting intrahemispheric coupling seen in comparisons between Lake El'gygytgyn and Antarctic sediment records might be related to linkages between Antarctic ice volume and ocean circulation. The exceptional warmth of MIS 11c remains enigmatic however, relative to the modest orbital and greenhouse gas forcing during that interglacial. Large Northern Hemisphere ice sheets during Plio-Pleistocene glaciation causes a substantial decrease in Mean Temperature of the Coldest Month (MTCM) and Mean Annual Precipitation (PANN) causing significant Arctic aridification. Aridification and cooling can be linked to a combination of mechanical forcing from the Laurentide and Fennoscandian ice sheets on mid-tropospheric westerly flow and expanded sea ice cover causing albedo-enhanced feedback.

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Tesis sobre el tema "Past interglacials"

Torner, Perez Judit. "Paleoclimatic reconstruction of past interglacial periods and their transitions in the Iberian Peninsula and its surrounding seas = Reconstruccions paleoclimàtiques dels interglacials recents i les seves transicions a la Península Ibèrica i mars circumdants". Doctoral thesis, Universitat de Barcelona, 2020. http://hdl.handle.net/10803/672465.

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This study combines cave speleothems and marine sediments to gain an insight into the climate variability of the Iberian Peninsula (IP) and its surrounding seas associated with previous warm interglacial periods. In particular, it centres in the interglacials comprised within the Marine Isotopic Stages (MIS) 13, 11, 9, 7, and 5, and their associated transitions. The speleothems are used as archives for changes in atmospheric moisture availability by means of stable isotopes and Mg/Ca analysis. The studied speleothems correspond mostly from the Balearic Islands (Minorca and Mallorca) but also from the Pyrenees. Marine conditions for the penultimate termination (T-II) and the MIS 5 have been reconstructed in the base to three sediment cores from three different marine locations around the IP: the Cantabrian Sea, the Alboran Sea, and the Balearic Sea. Surface conditions were explored by means of pair analyses of δ18O and Mg/Ca ratios measured in carbonate shells of the planktonic foraminifera Globigerina bulloides. These measurements let to the reconstruction of Sea Surface Temperatures (SST) and sea water δ18Osw values as a proxy of major changes in the regional precipitation/evaporation balance or as an indicator of the arrival of melting waters. In addition, changes in the intensity of western Mediterranean deep convection are explored through additional measurements of grain size distribution and XRF-geochemical ratios performed in the Balearic core (MD99- 2343). The studied speleothem collection provides a nearly continuous 450 kyr record, unique for the Mediterranean region. Interglacial periods are characterized by light δ13C and low Mg/Ca ratios pointing to enhanced precipitation and climate amelioration that allowed the expansion of the vegetation cover. On the contrary, heavier/higher δ13C and Mg/Ca ratios during glacial stages highlight their dry conditions with reduced vegetation activity. The δ18Ospeleo records reveal also the overall dominance of lighter values during interglacial periods in contrast to the glacial periods but with a strong 23-kyr (precessional) imprint in the signal. The extraordinary resemblance between the cave and marine δ18O records support a strong influence of Mediterranean source rains over the studied caves whose δ18O signal was dominated by the precession control on the evaporation/precipitation ratio on the Mediterranean basin. The MIS 11 appears in the studied speleothem as a long and stable interglacial with rather constant water availability over the Balearic Islands. The speleothem covering the MIS 9 and MIS 7 allows identifying sub-stage structures with wetter conditions associated with the warm periods. This record presents extraordinary resemblance to previously published pollen sequences from the Mediterranean region. The MIS 5 is studied in detail through the integrated study of marine and speleothem records. During the Last Interglacial (LIG), the sea surface temperature evolution was heterogeneous around the IP with gradients among the three studied seas larger than those from today. The LIG end was coincident with an accelerated aridification phase that marked the glacial inception at 116.5 kyr BP. This was the first of a series of stadials that punctuated the early glaciation and where the sea thermal gradient almost disappeared around the IP. These intense coolings during stadials led the development of drier but intense westerlies over southern European latitudes that favoured deep convection in the western Mediterranean Sea. In contrast to this regional homogeneity among the studied records during stadial periods, the interstadials periods were rather heterogeneous pointing to much complex ocean-atmosphere interconnections during these warm intervals. Glacial terminations (T-III, IV, and V) appear as periods of low rates in speleothem growth while T-II is only represented by growth interruptions. The marine δ18Osw for the T-II supports the occurrence of a major freshening event in correspondence to the Heinrich Event (HE) 11. Previous terminations are represented by an early light δ18Ospeleo anomaly, likely reflecting that this early deglacial major melting over the Atlantic Ocean was a rule for deglacial initiations.
L’estudi combinat tant de sediments marins com d’espeleotemes ha permès determinar la variabilitat climàtica durant períodes interglacials recents (MIS 13, 11, 9, 7, i 5) a la Península Ibèrica i als seus mars circumdants. S’han utilitzat sediments marins de tres localitzacions diferents, del Mar Cantàbric, el Mar d’Alboran i el Mar Balear, en els quals s’han determinat les condicions superficials del mar, a partir del càlcul de les temperatures superficials (Mg/Ca-SST) i el δ18Osw mesurats en el foraminífer planctònic Globigerina bulloides. Addicionalment, s’han caracteritzat canvis en la intensitat de la corrent profunda a partir de la distribució granulomètrica i l’anàlisi elemental per fluorescència de raig X dels sediments del testimoni del Mar Balear. Per un altre banda l’anàlisi geoquímic tant d’isòtops estables com de la relació Mg/Ca mesurats en espeleotemes de les illes Balears i dels Pirineus han sigut utilitzats com indicadors de precipitacions. La nova col·lecció d’espeleotemes obtinguda en aquesta tesis doctoral ha proporcionat un registre continental pràcticament continu de 450 kyr únic a la zona de la Mediterrània. Els resultats d’aquesta tesis mostren que els períodes interglacials, caracteritzats per valors lleugers de δ13C i baixes relacions de Mg/Ca en espeleotemes, varen tindre cobertures vegetals més extenses que durant els períodes glacials i varen ser períodes humits degut al augment de les precipitacions. A més, els resultats indiquen peculiaritats entre els diferents períodes interglacials estudiats i permeten identificar sub-estructures climàtiques interestadials/interglacials. En concret el MIS 5, període estudiat amb detall, mostra alts gradients tèrmics de les aigües superficials marines entre les tres localitzacions estudiades al voltant de la Península Ibèrica, indicant una interconnexió oceà-atmosfera complexa durant aquests períodes més càlids. Contràriament, durant períodes estadials freds, els gradients tèrmics pràcticament varen desaparèixer, i juntament amb el desenvolupament de condicions atmosfèriques àrides varen afavorir la convecció profunda del mediterrani occidental.

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Rioual, Patrick. "Diatom assemblages and water chemistry of lakes in the French Massif Central : a methodology for reconstruction of past limnological and climate fluctuations during the Eemian period". Thesis, University College London (University of London), 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.326170.

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Ullermann, Johannes [Verfasser], Frank [Akademischer Betreuer] Lamy, Ralf [Akademischer Betreuer] Tiedemann y Gesine [Akademischer Betreuer] Mollenhauer. "Glacial-interglacial oceanic changes in the central Pacific sector of the Southern Ocean during the past 500 ka / Johannes Ullermann. Betreuer: Frank Lamy. Gutachter: Ralf Tiedemann ; Gesine Mollenhauer". Bremen : Staats- und Universitätsbibliothek Bremen, 2015. http://d-nb.info/1079652353/34.

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Toti, Francesco. "A Mediterranean perspective on the Early-Middle Pleistocene transition with emphasis on marine isotope stage 19". Doctoral thesis, 2018. http://hdl.handle.net/2158/1124617.

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In this thesis, we discuss pollen and dinocysts data from the western and central Mediterranean to reconstruct vegetation and climate during the Early-Middle Pleistocene transition, with emphasis on MIS 19, i.e. the best analogue of the present interglacial.

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WILSON, CHERYL R. "A lacustrine sediment record of the last three interglacial periods from Clyde Foreland, Baffin Island, Nunavut: biological indicators from the past 200,000 years". Thesis, 2009. http://hdl.handle.net/1974/1872.

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The study of long-term climatic change in the Arctic, a region both particularly sensitive to the effects of a warming climate and an important driver of global climate, is pertinent to understanding the rates and magnitude of current ecosystem changes. Analyses on geological time frames provide insight into the variability of Arctic climate, allowing a contextualized understanding of recent ecosystem changes that have been documented across the Arctic. Lake CF8, a mid-Arctic lake on Clyde Foreland, Baffin Island, contains a unique sedimentary archive of the present and last two interglacial periods, due to past non-erosive glaciation patterns, providing an opportunity to study interglacial climate trends. Diatom assemblages were analyzed through the organic sediment record of the past three interglacials. Trends in the ontogeny of this lake were revealed: the early, post-glacial environment was dominated by species of the colonial Fragilaria genera, which transitioned into high relative abundances of tychoplanktonic Aulacoseira species. Benthic/periphytic taxa, such as Psammothidium marginulatum, tended to increase in relative abundance in the mid- to late-interglacial periods. The ecological interpretation of this pattern is examined in this study, and suggests that climate drives the succession of the diatom community primarily through indirect effects on lake ice and pH. The extent of ice cover likely plays a large role in the biotic community of this lake; the diatom assemblages within the past ~ 50 years indicate increasing littoral habitat complexity with a peak in Eunotia species and a slightly acidic pH, which is discussed in relation to changing habitat availability associated with decreasing ice cover. In-lake production was examined through the use of spectrally-inferred chlorophyll a trends, which also indicate elevated production in the past ~ 50 years. As climate change becomes an increasingly significant threat to the stability of Arctic ecosystems, interest in paleoclimate records that extend into past, non-anthropogenically mediated warm periods, is increasing. This sediment record extends our understanding of past environmental trends beyond the longest records in this part of the Arctic, the Greenland ice core records, and enhances our understanding of the variability of Arctic climate.
Thesis (Master, Biology) -- Queen's University, 2009-05-06 17:04:38.302

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Libros sobre el tema "Past interglacials"

Frank, Sirocko, ed. The climate of past interglacials. Amsterdam: Elsevier, 2007.

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Litt, T., F. Sirocko, M. Claussen y M. F. Sanchez-Goni. Climate of Past Interglacials. Elsevier Science & Technology Books, 2006.

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The Climate of Past Interglacials. Elsevier, 2007. http://dx.doi.org/10.1016/s1571-0866(07)x8024-2.

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(Editor), F. Sirocko, M. Claussen (Editor), T. Litt (Editor) y M. F. Sanchez-Goni (Editor), eds. The Climate of Past Interglacials, Volume 7 (Developments in Quaternary Sciences) (Developments in Quaternary Sciences). Elsevier Science, 2007.

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Lézine, Anne-Marie. Vegetation at the Time of the African Humid Period. Oxford University Press, 2017. http://dx.doi.org/10.1093/acrefore/9780190228620.013.530.

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An orbitally induced increase in summer insolation during the last glacial-interglacial transition enhanced the thermal contrast between land and sea, with land masses heating up compared to the adjacent ocean surface. In North Africa, warmer land surfaces created a low-pressure zone, driving the northward penetration of monsoonal rains originating from the Atlantic Ocean. As a consequence, regions today among the driest of the world were covered by permanent and deep freshwater lakes, some of them being exceptionally large, such as the “Mega” Lake Chad, which covered some 400 000 square kilometers. A dense network of rivers developed.What were the consequences of this climate change on plant distribution and biodiversity? Pollen grains that accumulated over time in lake sediments are useful tools to reconstruct past vegetation assemblages since they are extremely resistant to decay and are produced in great quantities. In addition, their morphological character allows the determination of most plant families and genera.In response to the postglacial humidity increase, tropical taxa that survived as strongly reduced populations during the last glacial period spread widely, shifting latitudes or elevations, expanding population size, or both. In the Saharan desert, pollen of tropical trees (e.g., Celtis) were found in sites located at up to 25°N in southern Libya. In the Equatorial mountains, trees (e.g., Olea and Podocarpus) migrated to higher elevations to form the present-day Afro-montane forests. Patterns of migration were individualistic, with the entire range of some taxa displaced to higher latitudes or shifted from one elevation belt to another. New combinations of climate/environmental conditions allowed the cooccurrences of taxa growing today in separate regions. Such migrational processes and species-overlapping ranges led to a tremendous increase in biodiversity, particularly in the Saharan desert, where more humid-adapted taxa expanded along water courses, lakes, and wetlands, whereas xerophytic populations persisted in drier areas.At the end of the Holocene era, some 2,500 to 4,500 years ago, the majority of sites in tropical Africa recorded a shift to drier conditions, with many lakes and wetlands drying out. The vegetation response to this shift was the overall disruption of the forests and the wide expansion of open landscapes (wooded grasslands, grasslands, and steppes). This environmental crisis created favorable conditions for further plant exploitation and cereal cultivation in the Congo Basin.

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Capítulos de libros sobre el tema "Past interglacials"

Rapp, Donald. "Overview of the various models for ice ages in the recent past (3 MYBP to present)". En Ice Ages and Interglacials, 215–45. Berlin, Heidelberg: Springer Berlin Heidelberg, 2012. http://dx.doi.org/10.1007/978-3-642-30029-5_8.

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Gómez-Navarro, Juan Jose, Johannes P. Werner, Sebastian Wagner, Eduardo Zorita y Jürg Luterbacher. "Precipitation in the Past Millennium in Europe—Extension to Roman Times". En Integrated Analysis of Interglacial Climate Dynamics (INTERDYNAMIC), 133–39. Cham: Springer International Publishing, 2014. http://dx.doi.org/10.1007/978-3-319-00693-2_22.

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Petit-Maire, N. "Interglacial Environments in Presently Hyperarid Sahara : Palaeoclimatic Implications". En Paleoclimatology and Paleometeorology: Modern and Past Patterns of Global Atmospheric Transport, 637–61. Dordrecht: Springer Netherlands, 1989. http://dx.doi.org/10.1007/978-94-009-0995-3_27.

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Berger, A., M. F. Loutre, F. Kaspar y S. J. Lorenz. "2. Insolation during interglacial". En The Climate of Past Interglacials, 13–27. Elsevier, 2007. http://dx.doi.org/10.1016/s1571-0866(07)80027-3.

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Kiefer, Thorsten y Christoph Kull. "Preface: Climates of Past Interglacials — a PAGES Perspective". En The Climate of Past Interglacials, xi—xiii. Elsevier, 2007. http://dx.doi.org/10.1016/s1571-0866(07)80024-8.

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"Acknowledgements". En The Climate of Past Interglacials, xv. Elsevier, 2007. http://dx.doi.org/10.1016/s1571-0866(07)80025-x.

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Claussen, Martin. "1. Introduction to climate forcing and climate feedbacks". En The Climate of Past Interglacials, 3–11. Elsevier, 2007. http://dx.doi.org/10.1016/s1571-0866(07)80026-1.

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Claussen, Martin, André Berger y Hermann Held. "3. A survey of hypotheses for the 100-kyr cycle". En The Climate of Past Interglacials, 29–35. Elsevier, 2007. http://dx.doi.org/10.1016/s1571-0866(07)80028-5.

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Berger, André y Marie-France Loutre. "4. Modelling the 100-kyr cycle — an example from LLN EMICs". En The Climate of Past Interglacials, 37–44. Elsevier, 2007. http://dx.doi.org/10.1016/s1571-0866(07)80029-7.

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Sirocko, Frank. "5. Introduction — palaeoclimate reconstructions and dating". En The Climate of Past Interglacials, 47–52. Elsevier, 2007. http://dx.doi.org/10.1016/s1571-0866(07)80030-3.

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Actas de conferencias sobre el tema "Past interglacials"

Feng, Dong. "Enhanced marine methane seepage during past interglacials: Evidence from the South China Sea". En Goldschmidt2022. France: European Association of Geochemistry, 2022. http://dx.doi.org/10.46427/gold2022.9299.

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Blanchet, Cecile, Anne Osborne, Rik Tjallingii, Hana Jurikova, Arne Ramisch, Martin Frank y Achim Brauer. "Erosion dynamics in semi-arid areas of the Mediterranean Sea during past interglacials". En Goldschmidt2021. France: European Association of Geochemistry, 2021. http://dx.doi.org/10.7185/gold2021.5697.

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Rouyer, L., A. Govin, I. Bouloubassi, A. L. S. Albuquerque, T. T. Nguyen Tu, M. Mandeng-Yogo y A. Huguet. "Reconstruction of Past Environmental Variations in the Semi-Arid Brazilian Nordeste Through Last Interglacials". En 30th International Meeting on Organic Geochemistry (IMOG 2021). European Association of Geoscientists & Engineers, 2021. http://dx.doi.org/10.3997/2214-4609.202134367.

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Yamamoto, Masanobu, Sohei Kikuchi, Samantha Bova y Yair Rosenthal. "Drier climates in Papua New Guinea during interglacials over the past 1.68 million years". En Goldschmidt2022. France: European Association of Geochemistry, 2022. http://dx.doi.org/10.46427/gold2022.10041.

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Lindborg, Tobias, Ulrik Kautsky y Lars Brydsten. "Landscape Modeling for Dose Calculations in the Safety Assessment of a Repository for Spent Nuclear Fuel". En The 11th International Conference on Environmental Remediation and Radioactive Waste Management. ASMEDC, 2007. http://dx.doi.org/10.1115/icem2007-7115.

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Resumen

The Swedish Nuclear Fuel and Waste Management Co., (SKB), pursues site investigations for the final repository for spent nuclear fuel at two sites in the south eastern part of Sweden, the Forsmark- and the Laxemar site (figure 1). Data from the two site investigations are used to build site descriptive models of the areas. These models describe the bedrock and surface system properties important for designing the repository, the environmental impact assessment, and the long-term safety, i.e. up to 100,000 years, in a safety assessment. In this paper we discuss the methodology, and the interim results for, the landscape model, used in the safety assessment to populate the Forsmark site in the numerical dose models. The landscape model is built upon ecosystem types, e.g. a lake or a mire, (Biosphere Objects) that are connected in the landscape via surface hydrology. Each of the objects have a unique set of properties derived from the site description. The objects are identified by flow transport modeling, giving discharge points at the surface for all possible flow paths from the hypothetical repository in the bedrock. The landscape development is followed through time by using long-term processes e.g. shoreline displacement and sedimentation. The final landscape model consists of a number of maps for each chosen time period and a table of properties that describe the individual objects which constitutes the landscape. The results show a landscape that change over time during 20,000 years. The time period used in the model equals the present interglacial and can be used as an analogue for a future interglacial. Historically, the model area was covered by sea, and then gradually changes into a coastal area and, in the future, into a terrestrial inland landscape. Different ecosystem types are present during the landscape development, e.g. sea, lakes, agricultural areas, forest and wetlands (mire). The biosphere objects may switch from one ecosystem type to another during the modeled time period, from sea to lake, and from lake to mire and finally, some objects are transformed into agricultural area due to favorable farming characteristics.

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