| |
Records |
Links  |
|
Author |
Ruan, Y.L.; Zou, Y.H. |
|
| |
Title |
Monitoring The Spatio-Temporal Trajectory Of Urban Area Hotspots In Wuhan, China Using Time-Series Nighttime Light Images |
Type |
Journal Article |
| |
Year |
2019 |
Publication |
ISPRS – International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences |
Abbreviated Journal |
Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci. |
|
| |
Volume |
Xlii-4/W20 |
Issue |
|
Pages |
71-76 |
|
| |
Keywords |
Remote Sensing |
|
| |
Abstract |
|
|
| |
Address |
|
|
| |
Corporate Author |
|
Thesis |
|
|
| |
Publisher |
|
Place of Publication |
|
Editor |
|
|
| |
Language |
|
Summary Language |
|
Original Title |
|
|
| |
Series Editor |
|
Series Title |
|
Abbreviated Series Title |
|
|
| |
Series Volume |
|
Series Issue |
|
Edition |
|
|
| |
ISSN |
2194-9034 |
ISBN |
|
Medium |
|
|
| |
Area |
|
Expedition |
|
Conference |
|
|
| |
Notes |
|
Approved |
no |
|
| |
Call Number |
GFZ @ kyba @ |
Serial |
2762 |
|
| Permanent link to this record |
| |
|
| |
|
Author |
Tuttle, B. T., Anderson, S. J., Sutton, P. C., Elvidge, C. D., & Baugh, K. |
|
| |
Title |
It Used To Be Dark Here |
Type |
Journal Article |
| |
Year |
2013 |
Publication |
American Society for Photogrammetry and Remote Sensing |
Abbreviated Journal |
|
|
| |
Volume |
3 |
Issue |
11 |
Pages |
287-297 |
|
| |
Keywords |
Remote Sensing |
|
| |
Abstract |
Nighttime satellite imagery from the Defense Meteorological Satellite Program (DMSP) Operational Linescan System (OLS) has a unique capability to observe nocturnal light emissions from sources including cities, wild fires, and gas flares. Data from the DMSP OLS is used in a wide range of studies including mapping urban areas, estimating informal economies, and estimations of population. Given the extensive and increasing list of applications a repeatable method for assessing geolocation accuracy would be beneficial. An array of portable lights was designed and taken to multiple field sites known to have no other light sources. The lights were operated during nighttime overpasses by the DMSP OLS and observed in the imagery. An assessment of the geolocation accuracy was performed by measuring the distance between the GPS measured location of the lights and the observed location in the imagery. A systematic shift was observed and the mean distance was measured at 2.9 km. |
|
| |
Address |
|
|
| |
Corporate Author |
|
Thesis |
|
|
| |
Publisher |
|
Place of Publication |
|
Editor |
|
|
| |
Language |
|
Summary Language |
|
Original Title |
|
|
| |
Series Editor |
|
Series Title |
|
Abbreviated Series Title |
|
|
| |
Series Volume |
|
Series Issue |
|
Edition |
|
|
| |
ISSN |
|
ISBN |
|
Medium |
|
|
| |
Area |
|
Expedition |
|
Conference |
|
|
| |
Notes |
|
Approved |
no |
|
| |
Call Number |
IDA @ intern @ |
Serial |
2520 |
|
| Permanent link to this record |
| |
|
| |
|
Author |
Patnam, M.; Yao, W. |
|
| |
Title |
The Real Effects of Mobile Money: Evidence from a Large-Scale Fintech Expansion |
Type |
Journal Article |
| |
Year |
2020 |
Publication |
IMF Working Paper |
Abbreviated Journal |
|
|
| |
Volume |
20 |
Issue |
138 |
Pages |
|
|
| |
Keywords |
Remote Sensing |
|
| |
Abstract |
Mobile money services have rapidly expanded across emerging and developing economies and enabled new ways through which households and firms can conduct payments, save and send remittances. We explore how mobile money use can impact economic outcomes in India using granular data on transactions from Paytm, one of the largest mobile money service provider in India with over 400 million users. We exploit the period around the demonetization policy, which prompted a surge in mobile money adoption, and analyze how mobile money affects traditional risk-sharing arrangements. Our main finding is that mobile money use increases the resilience to shocks by dampening the impact of rainfall shocks on nightlights-based economic activity and household consumption. We complement these findings by conducting a firm survey around a phased targeting intervention which incentivized firms to adopt the mobile payment technology. Our results suggest that firms adopting mobile payments improved their sales after six-months of use, compared to other firms. We also elicit firms’ subjective expectations on future sales and find mobile payment adoption to be associated with lower subjective uncertainty and greater sales optimism. |
|
| |
Address |
|
|
| |
Corporate Author |
|
Thesis |
|
|
| |
Publisher |
|
Place of Publication |
|
Editor |
|
|
| |
Language |
|
Summary Language |
|
Original Title |
|
|
| |
Series Editor |
|
Series Title |
|
Abbreviated Series Title |
|
|
| |
Series Volume |
|
Series Issue |
|
Edition |
|
|
| |
ISSN |
1018-5941 |
ISBN |
|
Medium |
|
|
| |
Area |
|
Expedition |
|
Conference |
|
|
| |
Notes |
|
Approved |
no |
|
| |
Call Number |
UP @ altintas1 @ |
Serial |
3230 |
|
| Permanent link to this record |
| |
|
| |
|
Author |
Debbich, M. |
|
| |
Title |
Assessing Oil and Non-Oil GDP Growth from Space: An Application to Yemen 2012-17 |
Type |
Journal Article |
| |
Year |
2019 |
Publication |
International Monetary Fund |
Abbreviated Journal |
|
|
| |
Volume |
19 |
Issue |
221 |
Pages |
|
|
| |
Keywords |
Economics; Remote Sensing |
|
| |
Abstract |
This paper uses an untapped source of satellite-recorded nightlights and gas flaring data to characterize the contraction of economic activity in Yemen throughout the ongoing conflict that erupted in 2015. Using estimated nightlights elasticities on a sample of 72 countries for real GDP and 28 countries for oil GDP over 6 years, I derive oil and non-oil GDP growth for Yemen. I show that real GDP contracted by a cumulative 24 percent over 2015-17 against 50 percent according to official figures. I also find that the impact of the conflict has been geographically uneven with economic activity contracting more in some governorates than in others. |
|
| |
Address |
|
|
| |
Corporate Author |
|
Thesis |
|
|
| |
Publisher |
|
Place of Publication |
|
Editor |
|
|
| |
Language |
|
Summary Language |
|
Original Title |
|
|
| |
Series Editor |
|
Series Title |
|
Abbreviated Series Title |
|
|
| |
Series Volume |
|
Series Issue |
|
Edition |
|
|
| |
ISSN |
|
ISBN |
|
Medium |
|
|
| |
Area |
|
Expedition |
|
Conference |
|
|
| |
Notes |
|
Approved |
no |
|
| |
Call Number |
IDA @ intern @ |
Serial |
2721 |
|
| Permanent link to this record |
| |
|
| |
|
Author |
Metan S. S.; Kshirsagar A. R.; Samleti G. N.; Patki V. K. |
|
| |
Title |
Anti-Glare Headlamp a Safe Option for Better Vision to the Rider |
Type |
Journal Article |
| |
Year |
2019 |
Publication |
International Journal of Innovative Technology and Exploring Engineering |
Abbreviated Journal |
IJITEE |
|
| |
Volume |
8 |
Issue |
9S2 |
Pages |
672-678 |
|
| |
Keywords |
Public Safety |
|
| |
Abstract |
As per the Ministry of Road Transport and Highways report 2018, every day around 410 road fatalities in India, which is one of the highest road crash fatalities in the world. Evaluations show that an average of 1% of nighttime fatal crash lists glare as a major contributor factor. On the multilane highway, vehicle with high glared headlamp light disturbs the approaching motorist eyes due to which the vision of the motorist gets indistinct for a few seconds causing accidents on the road.
In the present work, a novel concept of an anti-glare headlamp is proposed to avoid the temporary blindness of the motorist due to momentary high glares from approaching vehicles. The anti- glare film reduces glare and halos around headlamp light at night and eliminates unattractive reflections on the eyes. A successful attempt is made to analyze the visibility of objects in a scene by inspecting contrast reduction caused by the illuminance contribution. Our visualization of scenes with the cover-up veiling illuminance gives a good indication of the visual problems that might occur, but the images are not exactly what people perceive when observing the scene in reality.
In the present study, after number of samples, it has found that that the mixture of yellow and green color film combination on halogen bulb headlamp will give a good vision to the rider as well as glare-free effect to the approaching motorist. Visualizations with the proposed method can still improve the understanding of human vision so that visual aspects can be taken into account in design and quality assurance of head lamp. |
|
| |
Address |
|
|
| |
Corporate Author |
|
Thesis |
|
|
| |
Publisher |
|
Place of Publication |
|
Editor |
|
|
| |
Language |
|
Summary Language |
|
Original Title |
|
|
| |
Series Editor |
|
Series Title |
|
Abbreviated Series Title |
|
|
| |
Series Volume |
|
Series Issue |
|
Edition |
|
|
| |
ISSN |
2278-3075 |
ISBN |
|
Medium |
|
|
| |
Area |
|
Expedition |
|
Conference |
|
|
| |
Notes |
|
Approved |
no |
|
| |
Call Number |
UP @ altintas1 @ |
Serial |
3162 |
|
| Permanent link to this record |
