Feature Article

susan's picture

Seasonal variation of cloud radiative forcing derived from the Earth Radiation Budget Experiment

D11
18687-18703
Publication Date: 
20/10/1990

The NASA Earth Radiation Budget Experiment (ERBE), flying aboard multiple satellites, is providing new insights into the climate system. Monthly averaged clear-sky and cloudy sky flux data derived from the ERBE are used to assess the impact of clouds on the Earth's radiation balance. This impact is examined in terms of three quantities: longwave,
shortwave, and net cloud forcing. Overall, clouds appear to cool the Earth-atmosphere system.

95
shompa's picture

Assessment of urbanization effects in time series of surface air temperature over land

0

Records of hemispheric average temperatures from land regions for the past 100 years provide crucial input to the debate over global warming.

169
347
Publication Date: 
13/09/1990
Main Topic: 
Name of the Journal: 
susan's picture

Toxicity and carcinogenicity of potassium bromate-A new renal carcinogen

Potassium bromate (KBrO3) is an oxidizing agent that has been used as a food additive, mainly in the bread-making process. Although adverse effects are not evident in animals fed bread-based diets made from flour treated with KBrO3, the agent is carcinogenic in rats and nephrotoxic in both man and experimental animals when given orally. It has been demonstrated that KBrO3 induces renal cell tumors, mesotheliomas of the peritoneum, and follicular cell tumors of the thyroid.

309-335
87
Publication Date: 
01/07/1990
Main Topic: 
Name of the Journal: 
susan's picture

Crop damage by overabundant populations of nilgai and blackbuck in Haryana (India) and its management

In India, as in other countries, problems associated with locally overabundant wildlife species have emerged as important management issues for reason of some species losing their natural habitat but adapting themselves to the manaltered habitats. Consequently, there is a clash with the interests of local people. Crop-raiding by locally overabundant wild populations of nilgai and blackbuck in Haryana is one such problem analyzed in this paper.

218-220
Publication Date: 
03/06/1990
Attachment(s): 
Main Topic: 
susan's picture

Phenological trends with latitude in the mangrove tree Avicennia Marina

1
113-133
Publication Date: 
01/03/1990

Leaf fall and reproductive phenology of Avicennia marina assessed during 1982-83 using litter fall collections from twenty-five sites in Australia, Papua New Guinea and New Zealand revealed major trends with latitude. Flowering shifted from NovemberDecember in northern tropical sites, to May-June in southern temperate sites. Periods between flowering and fruiting increased from two to three months in tropical sites to ten months in southernmost sites. Leaf fall was more variable with unimodal annual peaks in temperate sites and often multimodal patterns in the tropics.

78
Main Topic: 
Author: 
Name of the Journal: 
susan's picture

A global assessment of natural sources of atmospheric trace metals

A proper inventory of atmospheric emissions from natural sources is basic to our understanding of the atmospheric cycle of the trace metals (and metalloids), and is also needed for assessing the extent of regional and global pollution by toxic metals1. It is generally presumed that the principal natural sources of trace metals in the atmosphere are wind-borne soil particles, volcanoes, seasalt spray and wild forest fires2–6.

47-49
Publication Date: 
02/03/1989
338
Name of the Journal: 
susan's picture

Cloud-radiative forcing and climate: Results from the earth radiation budget experiment

4887
57-63
Publication Date: 
06/01/1989

The study of climate and climate change is hindered by a lack of information on the effect of clouds on the radiation balance of the earth, referred to as the cloud-radiative forcing. Quantitative estimates of the global distributions of cloud-radiative forcing have been obtained from the spaceborne Earth Radiation Budget Experiment (ERBE) launched in
1984.

243
Main Topic: 
Name of the Journal: 
susan's picture

Pesticide residues in edible oils and oil seeds

42

The article offers information on the quantification of organochlorine pesticides residues in edible oils and oil seeds used in India. It states that different organochlorine pesticides were found in the edible oils and oil seeds which include metabolites, aldrin, and endusulfan. It says that sesame oils were found to have low saponification value (SV) but higher free fatty acid (FFA).

50-56
42
Publication Date: 
01/01/1989
susan's picture

Some problems associated with tube well programmes in Sri Lanka

7

The groundwater circulation is limited in Sri Lanka because nine tenth area of the island is underlain by metamorphic hard rocks which are generally very impermeable. Therefore to satisfy the water demand some other possibilities of water resources should be explored before starting a groundwater investigation programme for a given area.

97
40
Publication Date: 
01/01/1989
Main Topic: 
sheeja's picture

Pesticide use by vegetable farmers: case study in a multiple cropping system in Sri Lanka

2

Pest and pest management by vegetable growers were evaluated by interviewing and close monitoring of randomly selected 204 farmers over a period of one and half years.  Two villages selected namely Kolabissa and Marassana located about 45 km from Peradeniya, practiced intensive mixed cropping of vegetables,  Study showd that 95.6% of the farmers were literate.  Many of the farmer

28
32
Publication Date: 
01/01/1989
Name of the Journal: 

Pages