מאמרים

מרכז הידע הישראלי להערכות לשינויי אקלים
2015

Evaporation from Lake Kinneret, Israel, during hot summer days

The relationships between the evaporation from a medium size (168.7 km2) Lake Kinneret (Northern Israel), and its governing synoptic factors are well demonstrated during the summer of 2010. During July–August the daily temperature of the air and water surface were ∼2–4 °C higher, the daily wind over the lake was ∼80% weaker, and the evaporation from the lake was ∼5% lower than the long-term July–August mean. In this study, we explore the impact of the regional and local synoptic-scale atmospheri
מידע נוסף
מרכז הידע הישראלי להערכות לשינויי אקלים
2011

Using ensemble of climate models to evaluate future water and solutes budgets in Lake Kinneret, Israel

Identifying and quantifying future climate effects on water resources has major economic and societal implications, rendering such studies extremely important for water planners. Here we integrate output from one high resolution global (Japan Meteorological Agency) and three regional (ECHAM-RegCM, Hadley-MM5, ECHAM-MM5) climate models into three hydrological tools (1. annual incoming water volumes; 2. evaporation from the lake; and 3. lake salinity) to provide first approximations of climate change impacts on water quantity and quality in Lake Kinneret (also known as Sea of Galilee), the major freshwater resource in Israel. Meteorological data extracted from the climate models were used as input data into the models. Results were calculated for the historical 1979–2009 and the future 2015–2060 periods. The modeled historical period was verified against observed data, first by each model alone, and then by the combined model structure. Predicted results varied between the climate models. The ECHAM-RegCM predicted decreased precipitation in an average rate of ∼7 mm year−1 (−0.8% annually) while the trends of precipitation predicted by the other models were less obvious. According to the combination of ECHAM-RegCM, ECHAM-MM5 and Hadley-MM5 with the lake evaporation model, the evaporation will increase by 0.2–0.6 Mm3 (0.10–0.25%) annually while according to the JMA no trend was found. The lake salinity is mostly impacted by changes in inflows and therefore only the ECHAM-RegCM predicted significant increase of salinity (from 280 ppm Cl today to ∼450 ppm Cl in 2060), while the trends of salinity according to other models were mild.
מידע נוסף
מרכז הידע הישראלי להערכות לשינויי אקלים
2011

Mechanisms of long-term variations of the thermal structure in a warm lake

Analysis of a 39-yr record (1969–2008) of temperature profiles from Lake Kinneret, Israel, revealed that average epilimnion thickness decreased by ∼ 1.2 m (∼ 3 cm yr−1), metalimnion thickness decreased by between ∼ 1.0 m (December) and ∼ 2.0 m (April), and average temperature of the epilimnion increased by ∼ 1°C (∼ 0.028°C yr−1). Average hypolimnetic temperature remained constant (∼ 15°C), so that the thermal gradient across the metalimnion increased. The average duration of the stratification period (∼ 286 d) remained unchanged. We show that the stratification changes were the result of a decrease in lake level, a slight increase in air temperature during the spring and summer, and a reduction of inflows to the lake. These changes in time affected the stratification pattern in the same direction, i.e., an increase in the lake epilimnetic temperature and an increase in the thermal gradient across the metalimnion. Analysis of the data indicates that the effect of overpumping, which leads to a reduction in lake level, is larger than the effect of changes due to air-temperature increase and the reduction in inflow volumes.
מידע נוסף

מאמרים ופרסומים אחרונים

מרכז הידע הישראלי להערכות לשינויי אקלים
2019

Socioeconomic and data challenges: Disaster risk reduction in Europe - UNDRR - 2019

Disaster risk reduction (DRR) involves complex processes with different stakeholders at all administrative levels. Two elements in particular play a major role: the need to ensure stakeholders' interoperability through an efficient exchange of data, and the inclusion of socioeconomic factors which may influence DRR processes. This report aims at contributing to increase the global knowledge on these two elements, focusing on the related issues affecting DRR throughout the European continent.
מידע נוסף
מרכז הידע הישראלי להערכות לשינויי אקלים
2019

IPCC 2019 - Refinement to the 2006 IPCC Guidelines for National Greenhouse Gas Inventories

The 2019 Refinement to the 2006 Guidelines for National Greenhouse Gas Inventories was adopted and accepted during the 49th Session of the IPCC in May 2019. It was prepared by the Task Force on National Greenhouse Gas Inventories (TFI) in accordance with the decision taken at the 44th Session of IPCC in Bangkok, Thailand, in October 2016
מידע נוסף
מרכז הידע הישראלי להערכות לשינויי אקלים
2019

Climate Change and Land - Special Report - IPCC

An IPCC special report on climate change, desertification, land degradation, sustainable land management, food security, and greenhouse gas fluxes in terrestrial ecosystems
מידע נוסף
מרכז הידע הישראלי להערכות לשינויי אקלים
2019

GAR 2019 - Global Assessment Report on Disaster Risk Reduction - UNDRR

The 2019 Global Assessment Report on Disaster Risk Reduction (GAR) is informed by the latest data – including Sendai Framework target reporting by countries using the Sendai Framework Monitor – and infers early lessons on the state of the global disaster risk landscape. While the observed period is still too short to reach definitive conclusions at a global scale, it is possible to ascertain certain patterns in terms of magnitude, geographic and socioeconomic distribution of impacts and abstract
מידע נוסף
מרכז הידע הישראלי להערכות לשינויי אקלים
2019

WMO Statement on the state of the global climate in 2018

This publication marks the twenty-fifth anniversary of the WMO Statement on the State of the Global Climate, which was first issued in 1994. The 2019 edition treating data for 2018 marks sustained international efforts dedicated to reporting on, analysing and understanding the year-to-year variations and long-term trends of a changing climate
מידע נוסף
מרכז הידע הישראלי להערכות לשינויי אקלים
2018

Global Warming of 1.5 ºC - Special Report - IPCC

An IPCC special report on the impacts of global warming of 1.5 °C above pre-industrial levels and related global greenhouse gas emission pathways, in the context of strengthening the global response to the threat of climate change, sustainable development, and efforts to eradicate poverty
מידע נוסף
מרכז הידע הישראלי להערכות לשינויי אקלים
2015

Periodic Report Summary 1 - DYNAMIC (DYNamic feedbacks of climate impacts on current Adaptation and Mitigation Investment Choice)

The DYNAMIC (DYNamic feedbacks of climate impacts on current Adaptation and Mitigation Investment Choice) project proposes a novel framework to evaluate the economic consequences of climate change impacts and related policy responses.
מידע נוסף
מרכז הידע הישראלי להערכות לשינויי אקלים
2015

בחינת תרומת קבוצות סוציו אקונומיות בישראל לפליטות גזי חממה מצריכת מזון ביתי

לייצור המזון, במיוחד בחקלאות התעשייתית, נודעת השפעה ממשית על היקף פליטות גזי חממה באופן ישיר או עקיף. גזי חממה אלו נוצרים בכל שלבי מחזור החיים של המזון, החל משלב החקלאות ותשומותיו, דרך הייצור, הפצה, קירור, קמעונאות, הכנת המזון בבית וכלה בסילוק הפסולת.למעשה, בעוד שבמחקרים השונים קיימת הסכמה על כך שפליטות גזי חממה מייצור המזון וצריכתו מהוות חלק משמעותי מפליטות גזי החממה בעולם, המחלוקת המחקרית נסובה סביב הערכת היקף הפליטות. לדוגמא, לפי דוח של האו"ם מ- 2014 14.5% מפליטות גזי החממה כתוצאה מפעילו
מידע נוסף
מרכז הידע הישראלי להערכות לשינויי אקלים
2014

Explaining Extreme Weather Events of 2013 from a Climate Perspective

The annual Bulletin of the American Meteorological Society (BAMS) special issue on the attribution of last year’s extreme weather events is published today. This year’s issue “explaining extreme events of 2013 – from a climate perspective” includes two papers led by researchers from our climateprediction. This is a highly-cited and influential annual publication coined in 2012 asking whether and to what extent anthropogenic climate change altered the risk of major extreme weather events of the p
מידע נוסף
מרכז הידע הישראלי להערכות לשינויי אקלים
2014

Lima call for climate action- Decision

Climate Action & UNEP delivered their fifth annual Sustainable Innovation Forum on December 9 in Lima. This year’s event brought together close to 500 leaders from key United Nations bodies, governments, international & regional companies and leading non-governmental organisations (NGO's).
מידע נוסף
מרכז הידע הישראלי להערכות לשינויי אקלים
2012

Climate Prediction for Adaptation: Who needs what?

The role of short- and long-term climate predictions in determining the success of adaptation to climate change is investigated. A simple theoretical model that captures the relationship between adaptive performance, decision structure, and prediction accuracy at different temporal scales is developed, and its implications deduced. It is shown that users who face high adjustment costs (i.e. are inflexible) depend more heavily on accurate long-term predictions than those who are able to adjust
מידע נוסף
מרכז הידע הישראלי להערכות לשינויי אקלים
2012

UK climate change risk assessment: government report

The Government published the UK Climate Change Risk Assessment (CCRA) on 25 January 2012, the first assessment of its kind for the UK and the first in a 5 year cycle. It sets out the main priorities for adaptation in the UK under 5 key themes identified in the CCRA 2012 Evidence Report - Agriculture and Forestry; Business, industries and Services; Health and Wellbeing; Natural Environment and Buildings and Infrastructure - and describes the policy context, and action already in place to tackle
מידע נוסף
מרכז הידע הישראלי להערכות לשינויי אקלים
2011

2011 Bonn Declaration of Mayors

This declaration is the outcome document of the Mayors Adaptation Forum, which forms the Mayors segment of the Resilient Cities 2011 congress. It highlights the need to build resilience to disasters as a critical issue. It also signals the need to take appropriate action to build local capacities in reducing risk to disasters including those exacerbated by climate change.
The declaration advocates for the implementation of the following: (i) mainstreaming new adaptation and resilience standard
מידע נוסף
מרכז הידע הישראלי להערכות לשינויי אקלים
2011

A double-resolution transient RCM climate change

A double-resolution regional experiment on hydrodynamic simulation of climate over the eastern Mediterranean (EM) region was performed using an International Center for Theoretical Physics, Trieste RegCM3 model. The RegCM3 was driven from the lateral boundaries by the data from the ECHAM5/MPI-OM global climate simulation performed at the MPI-M, Hamburg and based on the A1B IPCC scenario of greenhouse gases emission. Two simulation runs for the time period 1960-2060, employing spatial resolutions
מידע נוסף
מרכז הידע הישראלי להערכות לשינויי אקלים
2011

Climate Change Adaptation and Real Option Evaluation: A Case Study in Campeche, Mexico

This report illustrates the application of a (relatively) new method to guide decision making under high (and unknowable) levels of uncertainty. The approach allows for the identification of robust policy options that are economically beneficial under different scenarios and varying levels uncertainty. Option value techniques are commonly employed in the finance literature to identify investment decisions that are resilient across a spectrum of outcomes. The methods are technically advanced
מידע נוסף
מרכז הידע הישראלי להערכות לשינויי אקלים
2011

ipcc summary for policymakers

The Working Group III Special Report on Renewa
ble Energy Sources and Climate Change
Mitigation (SRREN) presents an assessment of th
e literature on the scientific, technological,
environmental, economic and social aspects of
the contribution of six renewable energy (RE)
sources to the mitigation of climate change. It is
intended to provide policy relevant information to
governments, intergovernmental processes and ot
her interested parties. This Summary for
Policymakers provides an ov
מידע נוסף
מרכז הידע הישראלי להערכות לשינויי אקלים
2008

Climate change- vulnerability and adaptation indicators

The purpose of this Technical Paper is to rehearse some fundamental concepts surrounding the
development and delineation of adaptation indicators. It builds upon the outputs of an Expert meeting
on climate change vulnerability and adaptation indicators (Budapest, September 2008) and on the
contents of a Background Paper that was prepared for the meeting.
מידע נוסף
אתר זה אינו נתמך על ידי הדפדפן שלך אנא הורד גוגל כרום
נגישות
גודל טקסט:
א א א
שינוי צבעי האתר:
מקשי קיצור
?

לחיצה חוזרת ונשנית על המקש Tab תעביר אתכם בין הקישורים והאזורים השונים בעמוד.

הפעלת מקשי הקיצור תלויה בדפדפן שבו אתם משתמשים:

ב Internet Explorer ובChrome ובגרסאות ישנות של Firefox: לחצו על מקש Alt ועל מקש המספר או האות על-פי הרשימה. ב Firefox 3 ומעלה: לחצו על המקשים Alt + Shift + המספר או האות.

S - עבור לתוכן העמוד
1 - עמוד הבית
2 - חיפוש