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Record #174532:
- #174532
Main publication details
MARC recordWavelt-transform based edge detection approach to derivation of snowmelt onset, end and duration from satellite passive microwave measurements / Hongxing Liu, Lei Wang, Kenneth C. Jezek.
| Title: | Wavelt-transform based edge detection approach to derivation of snowmelt onset, end and duration from satellite passive microwave measurements / Hongxing Liu, Lei Wang, Kenneth C. Jezek. |
| Author(s): | Liu, Hongxing. Wang, Lei. Jezek, Kenneth C. |
| Date: | 2005. |
| In: | International Journal of Remote Sensing. (2005.), Vol. 26(21) (2005) |
| Abstract: | Presents method to accurately derive onset and end dates, duration and spatial extent of snow melt. Exploits apparent edges on brightness temperature time series (Tb) curve corresponding to sharp induced transitions. Method decomposes (Tb) time series into multi-scale components using wavelet transform and detects edges at different scales. Variance analysis and Gaussian curve fitting determine optimal threshold for differentiating significant edges corresponding to melting events from weak ones associated with noise. Spatial neighbourhood operator detects and corrects possible errors. Presents application to 2001-02 satellite passive microwave SSM/I data for Antarctic Ice Sheet, evaluated using visual interpretation of (Tb) time series and near-surface air temperature records. |
| Notes: | International Journal of Remote Sensing. Vol. 26(21) :4639-4660 (2005). |
| Keywords: | 551.32 -- Glaciology. 551.578.46 -- Snow cover and snow patches. 551.322 -- Ice and snow. 536.421.1 -- Melting. 551.521 -- Radiation, atmospheric. 551.578.461 -- Snow cover, methods of reporting and coding. 536.5 -- Temperature measurement and control. 53.087.23 -- Remote sensing. 551.508.826 -- Meteorological instruments, satellites. 519.2 -- Statistical methods. E10 -- Glaciology: snow and avalanches. (*7) -- Antarctic regions. |
| SPRI record no.: | 174532 |
LDR 02292naa#a2200000#a#4500 001 SPRI-174532 005 20230928094824.0 007 ta 008 230928s2005####xx#ab#|##|s##|0||#0|eng#d 035 ## ‡aSPRI-174532 040 ## ‡aUkCU-P‡beng‡eaacr 100 1# ‡aLiu, Hongxing. 245 10 ‡aWavelt-transform based edge detection approach to derivation of snowmelt onset, end and duration from satellite passive microwave measurements /‡cHongxing Liu, Lei Wang, Kenneth C. Jezek. 260 ## ‡a[S.l.] :‡b[s.n.],‡c2005. 300 ## ‡ap. 4639-4660 :‡bdiags., maps. 500 ## ‡aInternational Journal of Remote Sensing. Vol. 26(21) :4639-4660 (2005). 520 3# ‡aPresents method to accurately derive onset and end dates, duration and spatial extent of snow melt. Exploits apparent edges on brightness temperature time series (Tb) curve corresponding to sharp induced transitions. Method decomposes (Tb) time series into multi-scale components using wavelet transform and detects edges at different scales. Variance analysis and Gaussian curve fitting determine optimal threshold for differentiating significant edges corresponding to melting events from weak ones associated with noise. Spatial neighbourhood operator detects and corrects possible errors. Presents application to 2001-02 satellite passive microwave SSM/I data for Antarctic Ice Sheet, evaluated using visual interpretation of (Tb) time series and near-surface air temperature records. 530 ## ‡aAlso issued online ‡uurn:doi:10.1010/01431160500213342‡uhttps://dx.doi.org/10.1010/01431160500213342 650 07 ‡a551.32 -- Glaciology.‡2udc 650 07 ‡a551.578.46 -- Snow cover and snow patches.‡2udc 650 07 ‡a551.322 -- Ice and snow.‡2udc 650 07 ‡a536.421.1 -- Melting.‡2udc 650 07 ‡a551.521 -- Radiation, atmospheric.‡2udc 650 07 ‡a551.578.461 -- Snow cover, methods of reporting and coding.‡2udc 650 07 ‡a536.5 -- Temperature measurement and control.‡2udc 650 07 ‡a53.087.23 -- Remote sensing.‡2udc 650 07 ‡a551.508.826 -- Meteorological instruments, satellites.‡2udc 650 07 ‡a519.2 -- Statistical methods.‡2udc 650 07 ‡aE10 -- Glaciology: snow and avalanches.‡2local 651 #7 ‡a(*7) -- Antarctic regions.‡2udc 700 1# ‡aWang, Lei. 700 1# ‡aJezek, Kenneth C. 773 0# ‡7nnas ‡tInternational Journal of Remote Sensing. ‡gVol. 26(21) (2005) ‡wSPRI-1038 916 ## ‡a2006/01/31 -- RF 917 ## ‡aUnenhanced record from Muscat, imported 2019 948 3# ‡a20230928 ‡bRF