Annual seasonality trends of Normalized Difference Vegetation Index (NDVI), Maricopa County, Arizona, 2001-2018

Description: A dataset with 18 years (2001-2018) of consistent, spatial and temporal patterns of Normalized Difference Vegetation Index (NDVI) 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 Normalized Difference Vegetation Index (NDVI), 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. NDVI 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.

数据集描述：本数据集涵盖2001年至2018年共18年间美国亚利桑那州马里科帕县归一化差分植被指数（Normalized Difference Vegetation Index, NDVI）的一致时空格局数据。
摘要：本数据集包含亚利桑那州马里科帕县18年（2001-2018）的植被指数一致时空格局数据，该指数以归一化差分植被指数（NDVI）为表征形式。研究人员从中分辨率成像光谱辐射计（Moderate Resolution Imaging Spectroradiometer, MODIS）获取分辨率为250米的影像并完成处理。MODIS通过红光、近红外及蓝光波段的大气校正反射率计算植被指数。近数十年来，植被指数已被广泛应用于监测植被季节变化、记录植被结构、生产力与整体健康状况、土地覆盖变化，以及衡量荒漠景观的植被生产力。此外，NDVI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亦具有重要研究价值。MODIS数据获取自https://lpdaac.usgs.gov平台，该平台由美国地质调查局地球资源观测与科学（Earth Resources Observation and Science, EROS）中心（南达科他州苏福尔斯）的NASA EOSDIS陆地过程分布式活动档案中心（Land Processes Distributed Active Archive Center, LP DAAC）维护。
空间覆盖范围：美国亚利桑那州马里科帕县。