Artículos de revistas
Geoglam best available crop-specific global maps: Strengths and limitations
Fecha
2018Registro en:
P. Oliva, B. Barker and I. Becker-Reshef, "Geoglam Best Available Crop-Specific Global Maps: Strengths and Limitations," IGARSS 2018 - 2018 IEEE International Geoscience and Remote Sensing Symposium, Valencia, 2018, pp. 8183-8186, doi: 10.1109/IGARSS.2018.8518815.
DOI: 10.1109/IGARSS.2018.8518815
Autor
Barker B., Becker-Reshef I.
Oliva, Patricia [Hemera Centro de Observación de la Tierra, Facultad de Ciencias, Universidad Mayor, Chile]
Institución
Resumen
An accurate global map of current cropland is needed to tackle the agricultural challenges of the next decades. Several remote sensing products have provided with global cropland maps. To create the GEOGLAM best available global crop-specific maps, we integrated the SPAM 2005 with regional maps developed by different countries and international organisms. The comparison with other available global cropland products showed a clear linear agreement between products and a tendency towards overestimation of GEOGLAM best available global crop-specific maps. In addition, a sensitivity analysis was performed using the forecast production model for winter wheat developed in previous studies. It showed how at constant values of adjusted NDVI small variations of cultivated area (5000 ha) produced a 17% rate of variation in the estimated production values.