Experimental evidence for spring and autumn windows for the detection of geobotanical anomalies through the remote sensing of overlying vegetation

Labovitz, M. L.; Masuoka, E. J.; Bell, R.; Nelson, R. F.; Larsen, C. A.; Hooker, L. K.; Troensegaard, K. W.

Data for white oaks (Quercus alba L.), and tulip poplar (Liriodendron tulipifera L.) established the existence of spring and autumn windows for detection of metal sulphide related, geobotanical anomalies in the remotely sensed data. The autumn window appears to be related to earlier senescence of the mineralized vegetation. The spring window was associated with earlier flushing or leaf expansion of the non-mineralized vegetation.