Phase relations between climate variables are critical in order to ascertain the main mechanisms driving glaciation cycles. Proxy records from ice cores are commonly assumed to represent annual mean averages. These averages, however, may be biased toward a particular season due, for example, to a change in the distribution of precipitation. We demonstrate using a nine-box model of the climate s...

Monitoring changes in climate extremes is vitally important order to provide context for both our current and possible future climates. Datasets based on indices from situ observations reanalyses are often used this purpose. We assess the spatial temporal consistency between these two classes of dataset a global basis understand where they agree or complementary. As expected, temperature time s...

introduction: the increasing global consensus built on empirical evidence, expresses that the world, is facing a threat from climate change. as a result, this can affect the agricultural sector through its productivity changes and so influence food security in the world. this can be more intuitive for countries that are dependent on agriculture. agriculture is an important sector in iran that p...

Vol. 14 The National Food Survey of Great Britain households. From the nutritional aspect these families are of high importance, because they contained about a quarter of the children in all households surveyed. The annual average calcium intakes for these families can be obtained with a standard error of 0.8% so that differences between two sample annual averages must be just over 2% to achiev...

Vol. 14 The National Food Survey of Great Britain households. From the nutritional aspect these families are of high importance, because they contained about a quarter of the children in all households surveyed. The annual average calcium intakes for these families can be obtained with a standard error of 0.8% so that differences between two sample annual averages must be just over 2% to achiev...