UAV-Images dataset over a small intertidal coastal strip within "El Soldado", estuary in Guaymas, Sonora, México.

This dataset contains 314 aerial photographs taken in March 02, 2019 at 9 a.m. (UTC - 07:00) over an experimental site instrumented with an eddy covariance tower and meteorological sensors at "El Soldado" estuary located at the South-eastern margin of the Gulf of California (coordinates). The images were taken with a 16 MP MAPIR Survey2 RGB camera pointed downwards at 90° with a field of view (FOV) of 82°, a shooting interval of two seconds, focal aperture of f/2.8 (default for MAPIR Survey2 Cameras), shutter speed set to 1/125 and ISO 50. The camera was mounted on a commercial-grade Unmanned Aerial Vehicle (UAV, 3DR solo) to perform a 10-minutes flight over the study site with an altitude of 30 m and a horizontal velocity of 4 m/s . Photographs side overlap was set to 75% while the forward overlap was 85%. Flight conditions during the aerial survey were clear sky with wind velocity less than 0.5 m/s. All images were geotagged using UAV flight controller information through the freeware GeoSetter v3.5. This dataset was used as a mapping tool and support for the project: "Caracterización de los almacenes y flujos de carbono en pastos marinos de regiones bioclimáticas contrastantes de México."

本数据集包含314张航拍照片，拍摄于2019年3月2日上午9时（UTC-07:00），拍摄区域为位于加利福尼亚湾东南缘的"埃尔索尔达多（El Soldado）"河口实验场地，该场地配备有涡度协方差塔（eddy covariance tower）与气象传感器。

本次航拍所用设备为1600万像素MAPIR Survey2 RGB相机，相机以90°垂直向下指向，视场角（field of view, FOV）达82°，拍摄间隔设置为2秒，光圈参数为f/2.8（为MAPIR Survey2相机的默认参数），快门速度设为1/125，ISO感光度为50。

该相机搭载于商用级无人机（Unmanned Aerial Vehicle, UAV，3DR Solo），在研究区域上空完成了10分钟的飞行作业，飞行高度为30米，水平飞行速度为4米/秒。航拍参数中，旁向重叠度设置为75%，航向重叠度为85%。

航拍作业期间天气晴朗，风速小于0.5米/秒。所有影像均通过免费软件GeoSetter v3.5，结合无人机飞行控制器的飞行数据完成地理标记。

本数据集曾作为制图工具，为项目《墨西哥不同生物气候区海草床碳库与碳流特征》（Caracterización de los almacenes y flujos de carbono en pastos marinos de regiones bioclimáticas contrastantes de México）提供技术支撑。