Annual seasonality trends of Enhanced Vegetation Index (EVI), Maricopa County, Arizona, 2001-2018

Description: A dataset with 18 years (2001-2018) of consistent, spatial and temporal patterns of enhanced vegetation index (EVI) values in Maricopa County AZ Abstract: This dataset consists of 18 years (2001-2018) of consistent, spatial, and temporal patterns of vegetation indices, as expressed by the enhanced vegetation index (EVI), in Maricopa County, AZ. I download and process images, at 250m resolution, from the Moderate Resolution Imaging Spectroradiometer (MODIS). MODIS uses the atmospherically-corrected reflectance in the red, near-infrared, and blue wavebands to calculate vegetation indices. In the last decades, vegetation indices have been widely used for monitoring the seasonal variation of vegetation, document vegetation structure, productivity, overall health, and land cover changes and measure vegetation productivity in desert landscapes. EVI is also of high interest to investigate the potential distribution of plant and animal species and to investigate the effect of climate change on vegetation productivity. MODIS data were obtained from https://lpdaac.usgs.gov, maintained by the NASA EOSDIS Land Processes Distributed Active Archive Center (LP DAAC) at the USGS Earth Resources Observation and Science (EROS) Center, Sioux Falls, South Dakota. Spatial Extent: Maricopa County, AZ, USA.数据集说明：本数据集包含美国亚利桑那州马里科帕县2001-2018年间共18年的一致性时空格局增强型植被指数（enhanced vegetation index, EVI）数据。 摘要：本数据集涵盖美国亚利桑那州马里科帕县2001-2018年间共18年的一致性时空格局植被指数数据，该指数以增强型植被指数（EVI）表征。本研究从中分辨率成像光谱仪（Moderate Resolution Imaging Spectroradiometer, MODIS）下载并处理了分辨率为250米的影像。MODIS通过红光、近红外与蓝光波段的大气校正反射率计算植被指数。近几十年来，植被指数已被广泛应用于监测植被季节动态、记录植被结构、生产力与整体健康状况、监测土地覆盖变化，以及估算荒漠景观中的植被生产力。此外，EVI在探究动植物物种潜在分布以及气候变化对植被生产力的影响方面也具有重要研究价值。本数据集的MODIS数据获取自https://lpdaac.usgs.gov，该数据由美国地质调查局（USGS）地球资源观测与科学（EROS）中心（位于南达科他州苏福尔斯市）维护的美国国家航空航天局（NASA）地球观测系统数据与信息系统（EOSDIS）陆地过程分布式数据归档中心（LP DAAC）提供。 空间覆盖范围：美国亚利桑那州马里科帕县。