391 research outputs found
Late summer temperature (and precipitation) reconstruction from a tree-ring network in the Italian Peninsula
No full textA reconstruction of late summer (August–September) temperatures was performed in the Italian Peninsula using
a tree-ring network of maximum latewood density series (MXD) from eight sites. The species composition of
this network initially comprised specimens of Abies alba (5 sites), Pinus nigra (2 sites) and Pinus leucodermis
(1 site) growing along a latitudinal gradient spanning from 37 ̊ 46’ N to 44 ̊ 07’ N. The model was calibrated
and validated using a site-specific dataset of climate data, and the annual-resolved reconstruction covers a period
back to the early 1700s: the reconstruction holds a clear signal of late summer temperature and a weaker signal
of late summer precipitation. The spatial validation of this reconstruction performed on a period starting in 1901
evidences positive correlations (r > 0.6) within the central-northern region of the Mediterranean basin and the
western Balkans and statistically significant correlations spacing from the northwestern Maghreb, the entire Alpine
arch, to the southeastern Europe and the western Anatolian Peninsula. The same spatial analysis evidences also
a dipole with precipitation over Europe: negative correlations with late summer precipitations of northwestern
Balkans up to the western Black Sea and southern Italy, and positive correlations in a region at approximately 55 ̊N,
centred over Ireland, the British Isles and eastward up to the Southern Fennoscandia. The performed reconstruction
underlines periods of climatic cooling and also of wetter conditions the Italian Peninsula, in 1699, 1740, 1814, 1914
and 1938.
Bibliographic reference
Leonelli G., Coppola A., Salvatore M.C., Baroni C., Battipaglia G., Gentilesca T., Ripullone F., Borghetti M.,
Conte E., Tognetti R., Marchetti M., Lombardi F., Brunetti M., Maugeri M., Pelfini M., Cherubini P., Provenzale A., Maggi V. (2017). Climate signals in a multispecies tree-ring network from central and southern Italy
and reconstruction of the late summer temperatures since the early 1700s. Climate of the Past 13, 1451–1471,
https://doi.org/10.5194/cp-13-1451-201
Tree-ring δ18O dependence on water source isotopic signature in glacial environments of the European Alps: disentangling precipitation and glacier meltwater signals
No full textClimate-sensitive areas close to glacial environments in the European Alps are facing exceptional changes, especially in relation to the ongoing cryosphere contraction and the -temporary- higher availability of glacier meltwaters. Tree-ring stable isotopes in these dynamic areas have proved the possibility of reconstructing past changes in
glacier meltwater availability (Leonelli et al., 2014; Leonelli et al., 2017), thus contributing in better tracking the
ongoing hydroclimatic changes at the decadal and the century scales.
The cellulose of trees fed by glacial meltwaters are typically meanly more depleted in δ
18O than trees fed only
by precipitation, reflecting the higher depletion of glacial meltwaters with respect to local precipitation: this was
found for European larch both at a debris-covered glacier forefield (the Miage Glacier, western Alps) and at a
debris free glacier forefield (the Forni Glacier, central Alps).
At the Forni Glacier, in a control site located in the valley bottom further away from the glacier stream, we found
that the δ
18O of tree-ring cellulose reflects the δ
18O of winter snowfall (November to March), suggesting that
during the growing season trees mostly use the snow-melt water of the previous winter. Moreover, the tree-ring
cellulose δ
18O was also influenced by the August precipitation δ
18O and mean temperature.
By means of an appropriate experimental design, tree-ring stable isotopes may be of great help in reconstructing
past hydroclimatic changes in the proglacial environments of debris-free and debris-covered glaciers.
Bibliographic references
Leonelli G., Pelfini M., Battipaglia G, Saurer M., Siegwolf R.T.W., Cherubini P. (2014). First detection of glacial
meltwater signature in tree-ring δ
18O: Reconstructing past major glacier runoff events at Lago Verde (Miage
Glacier, Italy), Boreas 43, 600-607, https://doi.org/10.1111/bor.12055
Leonelli G., Battipaglia G., Cherubini P., Saurer M., Siegwolf R.T.W, Maugeri M., Stenni B., Fusco S., Maggi
V., Pelfini M. (2017). Larix decidua δ
18O tree-ring cellulose mainly reflects the isotopic signature of winter
snow in a high-altitude glacial valley of the European Alps, Science of the Total Environment 579, 230-237,
https://doi.org/10.1016/j.scitotenv.2016.11.12
Cronaca di etimologia sanscrita. Parte III
No full textAbstract
With this Report (here the n° 3) we present recent bibliographical information and,
occasionally, renewed discussion about a series of etymological problems of Sanskrit,
particularly Vedic, lexicon. Our principal aim is to supplement the Etymologisches
Wörterbuch des Altindoarischen by M. Mayrhofer (last Nachträge und Berichtigungen
1999-2000). So with our Report we would like to provide a tool similar, even though
more modest in its proposals, to the Chroniques d’etymologie grecque and latine
published in the “Revue de Philologie, de Littérature et d’Histoire Anciennes” – whose
points of reference were at the starting, in their turn, the etymological dictionaries
respectively by Chantraine and Ernout-Meillet. In close connexion with etymology we
will also consider problems related to the interpretation of Vedic texts and the reconstruction
of cultural realia. The present number includes lexems from ayā́s- to árma-,
along with a supplement to nn. 1 and 2.
R. Ronzitti is the author of the entries árṇa-, árbuda- (entirely); AR1, árāti-, arí-, arká-1,
ARC, árjuna-, ARDH, árma- (partially, with D. Maggi); aruṇá- (partially, with M.
Salvatori e D. Maggi); D. Maggi of the entries as mentioned before and of the remaining
ones. Specificamente, di D. Maggi sono le voci a1, a2, a3, agnyá-, aṅgá, aṅgana-, ácchā, AÑJ, AT, átas, áti, átya-, átha, AD, áditi-, adás, addhā́, adyá, ádha, adhás, ádhi, adhunā́, aná-, ánapta-, anarmán-, anarván-, ánīka-, ánu, anubala-, ano, ánta-, antárikṣa-, ánti, ándhas-1, ánna-, anyá-, áp-, ápa, ápi, apūpá-, aptyá-, ápsas-, abhí, amá-, amāvasu-, amú-, amŕ̥ta-, amnás, ay- (~ i-), áyas-; ayā́s-, áyomukha-, ará-, áraṇa-, aráṇi-, aratí-, áram, arari-, arari-(2), ararínda-, aráru-, áriṣṭa-, aru-, arundhatī́-, áruṣ-, aruṣá-, arká-2, argaḍa-, arghá-, árṇa-, ártha-, ARD, árbha- (interamente); AR1, árāti-, arí-, arká-1, ARC, árjuna- ARDH, árma- (parzialmente, con R. Ronzitti); aruṇá- (parzialmente, con R. Ronzitti e M. Salvatori)
GRIP Mineralogy of atmospheric micro-particles
No full textmeasured abundance of atmospheric micro-particles, segregated by mineralog
GRIP Mineralogy of atmospheric micro-particles in time slices
No full textaverage values of the mineralogies compiled as a function of ag
Cronaca di etimologia sanscrita. Parte IV
No full textWith this Report (here the n° 4) we present recent bibliographical information and, occasionally, renewed discussion about a series of etymological problems of Sanskrit, particularly Vedic, lexicon. Our principal aim is to supplement the Etymologisches Wörterbuch des Altindoarischen by M. Mayrhofer (last Nachträge und Berichtigun- gen 1999-2000). So with our Report we would like to provide a tool similar, even though more modest in its proposals, to the Chroniques d’etymologie grecque and latine published in the «Revue de Philologie, de Littérature et d’Histoire Anciennes» – whose points of reference were at the starting, in their turn, the etymological diction- aries respectively by Chantraine and Ernout-Meillet. In close connexion with etymol- ogy we will also consider problems related to the interpretation of Vedic texts and the reconstruction of cultural realia. e present number includes lexemes from aryamán- to the end of the letter a, along with a supplement to nn. 1-3.
R. Ronzitti is the author of the entries alā ́bu-, alíklava-, ávara-, ásr̥ j- (entirely); ARṢ2, avaṭá-, AŚ(3), aśītí-, áśru-, aśvatará, aṣṭá-, ásita-, ásu-, ásura-, ásthi-, ahám (partially, with D. Maggi); D. Maggi of the entries as mentioned before and of the remaining ones
Furlanetto_et_al._Revised_supplementary_material – Supplemental material for Elevational transects of modern pollen samples: Site-specific temperatures as a tool for palaeoclimate reconstructions in the Alps
No full textSupplemental material, Furlanetto_et_al._Revised_supplementary_material for Elevational transects of modern pollen samples: Site-specific temperatures as a tool for palaeoclimate reconstructions in the Alps by Giulia Furlanetto, Cesare Ravazzi, Federica Badino, Michele Brunetti, Elena Champvillair and Valter Maggi in The Holocene</p
Cronaca di etimologia sanscrita. Parte II
No full textCon la presente Cronaca (qui la sua II parte) si intendono presentare informazioni bibliografiche recenti su una serie di problemi etimologici relativi al lessico sanscrito, particolarmente vedico, corredando, all'occasione, le informazioni di una riinnovata discussione dei problemi stessi. Lo scopo principale è quello di fornire un supplemento all'Etymologisches Wörterbuch des Altindoarischen di M. Mayrhofer (gli ultimi Nachträge und Verbesserungen sono del 1999-2000), e con ciò quindi uno strumento di lavoro simile, se pur più modesto nei suoi propositi, alle Chroniques d'étymologie grecque/latine pubblicate nella "Revue de Philologie, de Littérature et d'Histoire Anciennes", che sono state finora basate sui dizionari etimologici di Chantraine e, risp., Ernout-Meillet. In stretta connessione con l'etimologia sono presi in considerazione anche problemi connessi con l'interpretazione dei testi vedici e con la ricostruzione di realia culturali. Il presente numero include lemmi da ápa a áyas- e un supplemento al numero precedente. Vi hanno altresì collaborato R. Ronzitti, M. Salvatori. di D. Maggi sono la premessa dal tit. In memoria [di M. Mayrhofer] e le voci akūpārā-, átri-, ádhvan-, ánapta-, ánas-, anumāna-, anuvyākhyāna-, anūpá-, ápa, apacít-, apád-, apapitvá-, ápas-, apasalaví, apāná-, apāmārgá-, apālambá-, apālā́-, ápi, apikakṣá-, apīcyà-, apūrvá-, aptúr-, ápnavāna-, ápnas-, abīṣṭakā-, ábda-, abhakṣya-, ábhaya-, abhāva-, abhí, abhicārá-, abhidharma-, abhipitvá-, abhipramúr-, abhivlaṅgá-, abhíśasti-, abhiṣeká-, abhīlī-, abhrá-, ámati-, ámatra-, amantú-, AMI, amú-, amŕ̥ta-, amnás, ambaka-, ámbara-, amla-, AY1, ay- (~ i-), áya-, áyas-.
Abstract:
With this Report (here the n° 2) we present recent bibliographical information and, occasionally, renewed discussion about a series of etymological problems of Sanskrit, particularly
Vedic, lexicon. Our principal aim is to supplement the Etymologisches Wörterbuch des Altindoarischen by M. Mayrhofer (last Nachträge und Verbesserungen 1999-2000).
So with our Report we would like to provide a tool similar, even though more modest in its proposals, to the Chroniques d’étymologie grecque and latine published in the “Revue de Philologie, de Littérature et d’Histoire Anciennes” – whose points of reference were at the starting, in their turn, the etymological dictionaries respectively by Chantraine et Ernout-Meillet. In close connexion with etymology we will also consider problems related to the interpretation of Vedic texts and the reconstruction of
cultural realia. The present number includes lexems from ápa to áyas-, along with a supplement to n° 1.
R. Ronzitti is the author of the entries ácchā, ádri-, apadhā ́, apūpá-, áprāyu-, apsarás-, apsujít-, ábhva-, ámbhas-2, ambhr̥ṇá-2 (entirely); apasalaví, apālā ́-, apikakṣ á-, aptúr-,
ápnas-, abhipitvá-, abhrá-, ámatra-, amnás (partially, with D. Maggi); ambarī ́ṣ a-, AY2 (partially, with M. Salvatori); M. Salvatori of the entry ápatya- (entirely); ambarī ́ṣ a-, AY2 (partially, with R. Ronzitti); D. Maggi of the entries as mentioned before and of the remaining ones
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