The EnMAP user interface and user request scenarios

EnMAP (Environmental Mapping and Analysis Program) is a German hyperspectral satellite mission providing high quality hyperspectral image data on a timely and frequent basis. Main objective is to investigate a wide range of ecosystem parameters encompassing agriculture, forestry, soil and geological environments, coastal zones and inland waters. The EnMAP Ground Segment will be designed, implemented and operated by the German Aerospace Center (DLR). The Applied Remote Sensing Cluster (DFD) at DLR is responsible for the establishment of a user interface. This paper provides details on the concept, design and functionality of the EnMAP user interface and a first analysis about potential user scenarios. The user interface consists of two online portals. The EnMAP portal (www.enmap.org) provides general EnMAP mission information. It is the central entry point for all international users interested to learn about the EnMAP mission, its objectives, status, data products and processing chains. The EnMAP Data Access Portal (EDAP) is the entry point for any EnMAP data requests and comprises a set of service functions offered for every registered user. The scientific user is able to task the EnMAP HSI for Earth observations by providing tasking parameters, such as area, temporal aspects and allowed tilt angle. In the second part of that paper different user scenarios according to the previously explained tasking parameters are presented and discussed in terms of their feasibility for scientific projects. For that purpose, a prototype of the observation planning tool enabling visualization of different user request scenarios was developed. It can be shown, that the number of data takes in a certain period of time increases with the latitude of the observation area. Further, the observation area can differ with the tilt angle of the satellite. Such findings can be crucial for the planning of remote sensing based projects, especially for those investigating ecosystem gradients in the time domain

A multi-scale urban analysis of the Hyderabad metropolitan area using remote sensing and GIS

Hyderabad in India is a sprawling metropolis and an incipient megacity facing structural, environmental, social and economic problems. An interdisciplinary research approach provides a holistic perspective on the urban characteristics to develop strategies for a more sustainable future. Thus, a multi-scale analysis of the urban area by remote sensing provides up-to-date data of the urban morphology. An overview analysis with a time series of Landsat data shows the dynamic growth of the urban area, its direction as well as the current spatial extension. QickBird data enable a highly detailed analysis of the structural characteristics of specific neighborhoods. These data provide the spatial basis within the GIS database complemented by further information from the city administration (e.g. population data, land use data) and finally detailed data from surveys. The combination of various perspectives of temporal and spatial urban characteristics can be used by different disciplines. This enables a value-added and more holistic view to understand urban workflows and their dependencies

User interface of the EnMap Ground Segment

The EnMAP Ground Segment will be implemented and operated by the German Aerospace Center (DLR). The Applied Remote Sensing Cluster (DFD) at DLR is responsible for the establishment of a user interface for the future German hyperspectral satellite mission EnMAP (Environmental Mapping and Analysis Program). This paper provides first issues on design and functionality of the user interface. The user interface consists of two hierarchically structured online portals. The EnMAP portal is the central entry point for all users interested to learn about the EnMAP mission, its objectives, status, and results. The EnMAP Data Access Portal (EDAP) links to a set of functions for registered users that will support the international EnMAP user community. The operational services offered through the EnMAP portal will be complemented by a service team, EnMAP Application Support, offering expert advice on the exploitation of EnMAP data