Reliability of NCEP/NCAR reanalysis data in the Himalayas/Tibetan Plateau
Atmospheric pressure ; China ; Climatic data ; High mountain ; Instrumentation ; Meteorology ; Mountain ; Temperature ; Tibet
The AA. compare the observational data of pressure and temperature collected at Mt Qomolangma and Mt NQ with the NCEP/NCAR reanalysis data. The main aim is to verify the reliability of the NCEP/NCAR data in the extreme high mountain regions.
Issues in data collection and reliability in marketing multidimensional scaling studies. Implications for large stimulus sets in Proximity and preference. Problems in the multidimensional analysis of large data sets.
The reliability of rainfall data from a volunteer observer network in the central United States
Summer weekly rainfall data collected by approximately 120 untrained volunteers (mainly farmers) using unofficial gauges in McLean County, reveal unambiguous mesoscale patterns. All volunteers used the same clear plastic, funnel shaped gauge
The assessment of land degradation in developing rural areas of South Africa is often hampered by a lack of reliabledata. Remote sensing data offers a reliable source of information. In a case study in the Sekgosese district in northern South
Political considerations and mass illiteracy have made accurate censuses difficult to achieve, but the 1991 census should produce reliabledata if it is depoliticised. - (EMS)
discharge of rivers now feeding the Northern Adriatic Sea. Data from gauging stations located on Alpine and Northern Apenninic rivers were matched to data derived from reservoirs silting and delta growths in lacustrine basins. The Alpine values
are consistent with those reported by HINDERER(1999, 2001) which are based on different data sets. The present denudation rates are then compared with literature data on long term average denudation rates (post LGM, Quaternary,Pliocene). The present-day impact
and 18th centuries, and finally to the expansion of observing networks to a near-global coverage in the last century. Recent developments in hydroclimatology have involved improving data-gathering networks, achieving new understanding of the reliability
The A. reviews the long history of hydroclimatology from the speculative ideas of the ancient Greeks, to the theoretical reasoning of late Renaissance scholars, to the beginning of quantification with the basic collection of needed data in the 17th
and accuracy of hydroclimatic data, development of computer programs.
Survey, the USA Department of Defense (Saint Louis, Missouri). Essential discrepancies are found between the results obtained from the two sources, and the conclusion is drawn that the data from the Aerospace Center are more reliable and should be used
The continents hypsometry is discussed in the light of the new results obtained on the basis of two automated banks of topographic data recently formed in the USA - Rand Corporation (Santa Monica, California) and Aerospace Center of Cartographic
instead of obsolete data by E. Kossina (1933). - (D'après l'Ed.).
Les stations nivométriques consistent en un alignement de dix points-repères, distants d'une trentaine de mètres. La moyenne des dix mesures donne l'épaisseur du manteau nival. Mais les données sont difficilement reliables à celles fournies par les
Only in recent years have bed load data for rivers existed in sufficient quantity and reliability to facilitate a better understanding of the bedload transport process. Data for the East Fork River, Wyoming indicate that when sand-size particles
Sea-level data for parts of the Bering-Chukchi shelves of Beringia from 19,000 to 10,000 B.P.
from the Bering and Chukchi shelves produced sea-level curves. Evaluation of these data suggests that nine of the radiocarbon-dated estimates of sea-level position are most reliable for the time period 19,000 to 10,000 yr B.P. The trend of these nine
points is proposed as the basis for a regional sea-level curve for central Beringia. Constraints on the data must be noted, however, by anyone using them.
Soil erosion in Prince Edward Island (P.E.I.) occurs mainly in the cool period of fall to spring during which potato lands are particularly vulnerable. Discharge and time of sampling are recorded on a datalogger which also records data from a set
of erosion plots and meteorologic instrumentation at each of the three sub-watersheds. The design and calibration of the watershed monitoring installations are described, with special emphasis on cool-period reliability of measuring and recording.