COMPARISON OF TWO MODELS RELATING PRECIPITABLE WATER TO SURFACE HUMIDITY USING GLOBALLY DISTRIBUTED RADIOSONDE DATA OVER LAND SURFACES
✍ Scribed by Choudhury, B. J.
- Publisher
- John Wiley and Sons
- Year
- 1996
- Tongue
- English
- Weight
- 841 KB
- Volume
- 16
- Category
- Article
- ISSN
- 0899-8418
No coin nor oath required. For personal study only.
✦ Synopsis
Relationships between precipitable water (W;
nun) and surface vapour pressure (eo; hPa), and surface dew point temperature ( t d ; "C) are evaluated using mean monthly radiosonde data for 24 months at 45 globally distributed locations both for individual locations and for the pooled data from all locations. The data selected cover a wide range of climatic conditions and complete seasonality for most of the locations. The physical basis of the models relating W to eo or td is reviewed briefly. Two semiempirical models, namely, W= Cleo + C, and In W= c $ d + C4, gave highly significant correlations both for individual locations and for the pooled data (3 = 0.94, C1 = 1.70, C2 = -0.1, C, = 0.058, and C4 = 2.42 for the pooled data), but examination of the residuals showed some inadequacy of these models for the pooled data.