Quantitative inter-annual and decadal June-July-August temperature variability ca. 570 BC to AD 120 (Iron Age-Roman Period) reconstructed from the varved sediments of Lake Silvaplana, Switzerland

2011 ◽  
Vol 26 (5) ◽  
pp. 491-501 ◽  
Author(s):  
Monique M. Stewart ◽  
Isabelle Larocque-Tobler ◽  
Martin Grosjean
Keyword(s):  
Iron Age ◽  
Temperature Variability ◽  
Roman Period ◽  
Varved Sediments ◽  
June July August ◽  
June July

Iron Age and Roman Enclosed Settlement at Winchester Road, Basingstoke

2019 ◽  
Vol 74 (1) ◽  
pp. 36-97
Author(s):  
Richard Massey ◽  
Matt Nichol ◽  
Dana Challinor ◽  
Sharon Clough ◽  
Matilda Holmes ◽  
...  
Keyword(s):  
Iron Age ◽  
Roman Period ◽  
Field Boundary ◽  
Crop Processing ◽  
Late Iron Age ◽  
Middle Iron Age ◽  
Grave Goods

Excavation in Area 1 identified an enclosed settlement of Middle–Late Iron Age and Early Roman date, which included a roundhouse gully and deep storage pits with complex fills. A group of undated four-post structures, situated in the east of Area 1, appeared to represent a specialised area of storage or crop processing of probable Middle Iron Age date. A sequence of re-cutting and reorganisation of ditches and boundaries in the Late Iron Age/Early Roman period was followed, possibly after a considerable hiatus, by a phase of later Roman activity, Late Iron Age reorganisation appeared to be associated with the abandonment of a roundhouse, and a number of structured pit deposits may also relate to this period of change. Seven Late Iron Age cremation burials were associated with a contemporary boundary ditch which crossed Area 1. Two partly-exposed, L-shaped ditches may represent a later Roman phase of enclosed settlement and a slight shift in settlement focus. An isolated inhumation burial within the northern margins of Area 1 was tentatively dated by grave goods to the Early Saxon period.<br/> Area 2 contained a possible trackway and field boundary ditches, of which one was of confirmed Late Iron Age/Early Roman date. A short posthole alignment in Area 2 was undated, and may be an earlier prehistoric feature.

scholarly journals Differential Influences of Teleconnections from the Indian and Pacific Oceans on Rainfall Variability in Southeast Asia

Atmosphere ◽  
2020 ◽  
Vol 11 (9) ◽  
pp. 886
Author(s):  
Abdul Azim Amirudin ◽  
Ester Salimun ◽  
Fredolin Tangang ◽  
Liew Juneng ◽  
Muhamad Zuhairi
Keyword(s):  
Indian Ocean ◽  
Southeast Asia ◽  
El Niño ◽  
El Nino ◽  
Rainfall Variability ◽  
June July August ◽  
Rainfall Patterns ◽  
Negative Impacts ◽  
The Individual ◽  
June July

This study investigates the individual and combined impacts of El Niño and the positive Indian Ocean Dipole (IOD) on the Southeast Asia (SEA) rainfall variability. Using composite and partial correlation techniques, it is shown that both inter-annual events have individually distinct impacts on the SEA rainfall anomaly distribution. The results showed that the impacts of the co-occurrence of El Niño and IOD events are significant compared to the individual effects of pure El Niño or pure IOD. During June-July-August and September-October-November, the individual impacts of the pure El Niño and IOD events are similar but less significant. Both events caused negative impacts over the southern part of SEA during June-July-August (JJA) and propagated northeastward/eastward during September-October-November (SON). Thus, there are significant negative impacts over the southern part of SEA during the co-occurrence of both events. The differential impacts on the anomalous rainfall patterns are due to the changes in the sea surface temperature (SST) surrounding the region. Additionally, the differences are also related to the anomalous regional atmospheric circulations that interact with the regional SST. The anomalous Walker circulation that connects the Indian Ocean and tropical Pacific Ocean also plays a significant role in determining the regional anomalous rainfall patterns.

scholarly journals Late-Holocene forest resilience in the central Pyrenean highlands as deduced from pollen analysis of Lake Sant Maurici sediments

The Holocene ◽  
2021 ◽  
pp. 095968362110332
Author(s):  
Valentí Rull ◽  
Núria Cañellas-Boltà ◽  
Teresa Vegas-Vilarrúbia
Keyword(s):  
Bronze Age ◽  
Middle Ages ◽  
Iron Age ◽  
Late Holocene ◽  
High Elevation ◽  
Roman Period ◽  
High Mountain ◽  
Southern Central ◽  
Central Pyrenees ◽  
The Middle Ages

Palynological analysis of the last ca. 4300 cal year BP using a sediment core taken from high mountain (ca. 1900 m elevation) Lake Sant Maurici sediments (southern-central Pyrenees) showed remarkable vegetation constancy during the Bronze Age and the Middle Ages. Records of the Iron Age and the Roman period were missing due to a major sedimentary gap. During the studied periods, the vegetation around the lake was largely dominated by pine ( Pinus) forests with birch ( Betula), oak ( Quercus) and hazel ( Corylus) trees, as is the case today. The composition of these forests and the abundance of their components remained quite stable, despite the occurrence of temperature and moisture shifts. The degree of human disturbance, notably that of pastoralism and cereal cultivation by scattered and temporary settlements, was very low and had little or no effect on the dominant forests. This situation contrasts with most high-elevation (subalpine and alpine) environments of the central Pyrenees that were massively anthropized during the Middle Ages. Further research should be aimed at finding sediments corresponding to the Iron Age and the Roman period to verify whether the vegetation constancy can be extended throughout the Late-Holocene. Past records of this type may allow the estimation of natural and anthropogenic thresholds for irreversible forest changes, which would be useful for conservation purposes.

Massive storage in As Laias/O Castelo (Ourense, NW Spain) from the Late Bronze Age/Iron Age transition to the Roman period: a palaeoethnobotanical approach

2013 ◽  
Vol 40 (11) ◽  
pp. 3865-3877 ◽  
Author(s):  
João Pedro Tereso ◽  
Pablo Ramil-Rego ◽  
Yolanda Álvarez González ◽  
Luis López González ◽  
Rubim Almeida-da-Silva
Keyword(s):  
Bronze Age ◽  
Iron Age ◽  
Roman Period ◽  
Late Bronze Age ◽  
Nw Spain

The Britons in Southern Scotland

Antiquity ◽  
1955 ◽  
Vol 29 (114) ◽  
pp. 77-88 ◽  
Author(s):  
Kenneth Jackson
Keyword(s):  
Iron Age ◽  
Roman Period ◽  
Anglo Saxon ◽  
Medieval Period ◽  
The West ◽  
Early Medieval Period ◽  
The North ◽  
Dark Ages ◽  
The People ◽  
Northern Portion

The archaeological background of the people of what is now Scotland south of the Forth and Clyde in the Roman period was a La Téne one, and specifically chiefly Iron Age B. This links them intimately with the Britons of southern Britain in the conglomeration of Celtic tribes who called themselves Brittones and spoke what we call the Brittonic or Ancient British form of Celtic, from which are descended the three modern languages of Welsh, Cornish and Breton. To the north of the Forth was a different people, the Picts. They too were Celts or partly Celts; probably not Brittones however, but a different branch of the Celtic race, though more closely related to the Brittones than to the Goidels of Ireland and (in later times) of the west of Scotland. Not being Brittonic, the Picts may be ignored here. Our southern Scottish Brittones are nothing but the northern portion of a common Brittonic population, from the southern portion of which come the people of Wales and Cornwall. Some historians speak of the northern Brittones as Welsh, following good Anglo-Saxon precedent, but this is apt to lead to confusion. The best term for them, in the Dark Ages and early Medieval period, as long as they survived, is ‘Cumbrians’, and for their language, ‘Cumbric’. They called themselves in Latin Cumbri and Cumbrenses, which is a Latinization of the native word Cymry, meaning ‘fellow-countrymen’, which both they and the Welsh used of themselves in common, and is still the Welsh name for the Welsh to the present day. The centre of their power was Strathclyde, the Clyde valley, with their capital at Dumbarton.

Formation and Land-Use History of Celtic Fields in North-West Europe – an Interdisciplinary Case Study at Zeijen, the Netherlands

2003 ◽  
Vol 6 (2) ◽  
pp. 141-173 ◽  
Author(s):  
Theo Spek ◽  
Willy Groenman-van Waateringe ◽  
Maja Kooistra ◽  
Lideweij Bakker
Keyword(s):  
Land Use ◽  
The Netherlands ◽  
Iron Age ◽  
Large Scale ◽  
Roman Period ◽  
Soil Tillage ◽  
North West ◽  
Late Iron Age ◽  
History Of

Celtic field research has so far been strongly focused on prospection and mapping. As a result of this there is a serious lack of knowledge of formation and land-use processes of these fields. This article describes a methodological case study in The Netherlands that may be applied to other European Celtic fields in the future. By interdisciplinary use of pedological, palynological and micromorphological research methods the authors were able to discern five development stages in the history of the field, dating from the late Bronze Age to the early Roman Period. There are strong indications that the earthen ridges, very typical for Celtic fields in the sandy landscapes of north-west Europe, were only formed in the later stages of Celtic field agriculture (late Iron Age and early Roman period). They were the result of a determined raising of the surface by large-scale transportation of soil material from the surroundings of the fields. Mainly the ridges were intensively cultivated and manured in the later stages of Celtic field cultivation. In the late Iron Age a remarkable shift in Celtic field agriculture took place from an extensive system with long fallow periods, a low level of manuring and extensive soil tillage to a more intensive system with shorter fallow periods, a more intensive soil tillage and a higher manuring intensity. There are also strong indications that rye (Secale cereale) was the main crop in the final stage of Celtic field agriculture.

scholarly journals Significant seasonal variations in the rate of women diagnosed with gestational diabetes: A observational single centre study of 28,128 women

2021 ◽  
Author(s):  
Matthew Cauldwell ◽  
Yolande VanDerI'isle ◽  
Ingrid Watt-Coote ◽  
Philip Steer
Keyword(s):  
Gestational Diabetes ◽  
Glucose Tolerance Test ◽  
Tolerance Test ◽  
Oral Glucose ◽  
Test Design ◽  
Single Centre ◽  
June July August ◽  
Single Centre Study ◽  
The Mean ◽  
June July

Objective To test the hypothesis that there is seasonal variation in the rates of gestational diabetes (GDM) diagnosed using a 2 hour oral glucose tolerance test. Design Monthly assessment of the percentage of women screened from 1st April 2016 to the 31st December 2020 who were diagnosed as having gestational diabetes Setting London Teaching Hospital Population 28,128 women receiving antenatal care between April 1st 2016 and 31 December 2020. Methods Retrospective study of prospectively collected data. Main Outcome Measures Proportion of women screened diagnosed as having gestational diabetes. Results The mean (SD) percentage of women diagnosed with GDM was 14.78 (2.24) in summer (June, July, August) compared with 11.23 (1.62) in winter (p < 0.001), 12.13 (1.94) in spring (p = 0.002), and 11.88 (2.67) in autumn (p = 0.003). There was a highly significant positive correlation of the percentage testing positive for GDM with the mean maximum monthly temperature (R2 = 0.248, p < 0.001). There was a statistically significant 33.8% increase in the proportion of GDM diagnoses from June 2020 onwards, possibly related to a reduction in exercise secondary to the Covid-19 pandemic. Conclusions There is a 23.3% higher rate of GDM diagnoses in the warmer summer months. There has been a 33.8% rise in GDM diagnoses associated with the Covid-19 pandemic.

The Pershore Hoards and Votive Deposition in the Iron Age

2013 ◽  
Vol 79 ◽  
pp. 297-325 ◽  
Author(s):  
Derek Hurst ◽  
Ian Leins
Keyword(s):  
Iron Age ◽  
Roman Period ◽  
Geophysical Survey ◽  
Landscape Position ◽  
Small Scale ◽  
Archaeological Excavation ◽  
Extensive Area ◽  
Late Iron Age ◽  
Votive Deposition ◽  
Twisted Wire

A large hoard of Iron Age coins was discovered by metal-detecting at Pershore, Worcestershire, in 1993. During small-scale archaeological excavation further Iron Age coins were recovered, including a likely second hoard. Further fieldwork in the same vicinity as the hoard(s) produced more Iron Age finds, including more coins, and a possible fragment of a twisted wire gold torc. In total 1494 Iron Age gold and silver coins were recovered. Geophysical survey indicated that the hoard(s) lay at the southern end of an extensive area of settlement which, based on the fieldwalking evidence, was mainly of Iron Age and Roman date. This covered an overall area ofc.10 ha, within which several areas of more intensive activity were defined, including enclosures and possible round-houses. It is suggested that the coin hoard(s) indicate the location of a Late Iron Age religious space in an elevated landscape position situated on the edge of a settlement which continued into the Roman period. As part of the archaeological strategy, specialist deep-search metal-detecting was undertaken in order to establish that the site has now been completely cleared of metalwork caches

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