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Nightlights_Composite [message #27691]

Wed, 20 September 2023 11:56

binay_rkmv
Messages: 3
Registered: September 2023
Location: Shiv Nadar University

Member

I have a few doubts about the variable Nightlights_Composite; these are as follows:
1) What is the methodology used for measuring composite? Is it like the annual average at the cluster level? Then it is not clear that for which year it has been taken.
2) For both files, the year mentioned in the description file is 2015; how it can be possible? I have tried to match at the cluster level for a few districts, but it didn't match. So, I need clarification on that.
3) Also, the mean and range of the Nightlights_Composite is declining from NFHS4 to NFHS5. I can suspect that COVID might be one of the reasons. But not sure, I needed further clarification.

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Re: Nightlights_Composite [message #27692 is a reply to message #27691]

Wed, 20 September 2023 15:35

Rose-DHS
Messages: 8
Registered: October 2021

Member

You can find detailed information on the methodology and description of the geospatial covariates in the Geospatial Covariate Manual that accompanies the GC file. For NFHS4, the manual can be found here: https://spatialdata.dhsprogram.com/references/DHS_Covariates _Extract_Data_Description_2.pdf. For NFHS5, the manual can be found here: https://spatialdata.dhsprogram.com/references/DHS_Covariates _Extract_Data_Description_3.pdf. Please let us know if you have any additional questions after reviewing these materials.

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Re: Nightlights_Composite [message #27948 is a reply to message #27692]

Wed, 25 October 2023 02:03

binay_rkmv
Messages: 3
Registered: September 2023
Location: Shiv Nadar University

Member

Dear Sir,
I have followed both the description files very carefully. The year reported against nightlight composite (page 31 in NFHS IV and Page 28 in NFHS V) is 2015 only for both rounds. I am assuming that that is for different years. I need clarification concerning that.
Thanks

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Re: Nightlights_Composite [message #27959 is a reply to message #27948]

Wed, 25 October 2023 15:23

Rose-DHS
Messages: 8
Registered: October 2021

Member

Thanks for your question. The manual is correct. The 2015 data was used for both NFHS IV and NFHS V.

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Re: Nightlights_Composite [message #27960 is a reply to message #27959]

Thu, 26 October 2023 00:32

binay_rkmv
Messages: 3
Registered: September 2023
Location: Shiv Nadar University

Member

Dear Sir/Ma'am
Thanks for the clarifications. For a quick check, I have also attempted to check and equate nightlight composites for states where the clusters were very nearby or equal. I didn't find any similarities, but that might be possible due to geo-masking. The data did not convince me that these are of the same 2015 for both IV and V rounds.

Thanks a lot for the clarification.

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